The report below shows ASNs assigned to Japan, ranked by the total number of IP addresses currently active on each network. Click on the ASN for full IP address information, whois details and more. You can also view our hosting report to see the networks ranked by how many domain names they host.
| ASN | Name | Num IPs |
|---|---|---|
| AS17676 | Softbank BB Corp. | 44,922,368 |
| AS4713 | NTT Communications Corporation | 28,895,488 |
| AS2516 | KDDI CORPORATION | 18,765,312 |
| AS2907 | Research Organization of Information and Systems, National Institute of Informatics | 8,510,144 |
| AS17506 | UCOM Corp. | 5,382,144 |
| AS9824 | Jupiter Telecommunication Co. Ltd | 4,745,216 |
| AS2497 | Internet Initiative Japan Inc. | 3,855,360 |
| AS2518 | BIGLOBE Inc. | 3,674,112 |
| AS38895 | Amazon.com, Inc. | 3,635,456 |
| AS2510 | FUJITSU LIMITED | 3,220,224 |
| AS2527 | So-net Entertainment Corporation | 3,210,240 |
| AS17511 | K-Opticom Corporation | 3,133,440 |
| AS9605 | NTT DOCOMO, INC. | 2,327,296 |
| AS4725 | SoftBank Mobile Corp. | 2,242,048 |
| AS10013 | FreeBit Co.,Ltd. | 1,983,744 |
| AS2514 | NTT PC Communications, Inc. | 1,872,896 |
| AS2519 | ARTERIA Networks Corporation | 1,682,944 |
| AS9595 | NTT-ME Corporation | 1,644,544 |
| AS37903 | Ymobile Corporation | 1,491,968 |
| AS10010 | TOKAI Communications Corporation | 1,456,128 |
| AS18126 | Chubu Telecommunications Company, Inc. | 1,307,648 |
| AS9617 | Jupiter Telecommunications Co., Ltd. | 1,163,264 |
| AS4694 | Yahoo Japan Corporation | 981,760 |
| AS4685 | Asahi Net | 905,216 |
| AS7679 | QTnet,Inc. | 696,832 |
| AS4721 | Jupiter Telecommunications Co., Ltd. | 631,808 |
| AS7671 | NTT SmartConnect Corporation | 451,584 |
| AS7522 | STNet, Incorporated | 431,104 |
| AS9365 | its communications Inc. | 404,480 |
| AS18081 | Kintetsu Cable Network Co., Ltd. | 360,448 |
| AS9370 | SAKURA Internet Inc. | 339,456 |
| AS2500 | WIDE Project | 330,240 |
| AS9371 | SAKURA Internet Inc. | 329,472 |
| AS4704 | Rakuten Communications Corp. | 303,104 |
| AS7524 | ITEC HANKYU HANSHIN CO.,LTD. | 286,720 |
| AS2506 | NTT WEST CHUGOKU CORPORATION | 279,808 |
| AS9597 | KDDI Web Communications Inc. | 276,736 |
| AS7684 | SAKURA Internet Inc. | 273,408 |
| AS4673 | NTT DATA CORPORATION | 258,048 |
| AS7506 | GMO Internet,Inc | 248,576 |
| AS2522 | Japan Network Information Center | 229,120 |
| AS18144 | Energia Communications,Inc. | 200,704 |
| AS2501 | The University of Tokyo | 200,704 |
| AS23793 | National Institute of Advanced Industrial Science and Technology | 199,936 |
| AS10026 | PACNET | 199,680 |
| AS10021 | KVH Co.,Ltd | 195,584 |
| AS7687 | TOYOTA DIGITAL CRUISE.INCORPORATED | 194,560 |
| AS7514 | Computer Engineering & Consulting, Ltd. | 194,560 |
| AS9354 | Community Network Center Inc. | 185,856 |
| AS4686 | BEKKOAME INTERNET INC. | 179,200 |
| AS17941 | Equinix Jpapan Enterprise K.K. | 168,960 |
| AS9374 | EDION Corporation | 165,888 |
| AS17698 | COMMUNITY NETWORK CENTER INCORPORATED. | 153,600 |
| AS17529 | COMMUNITY NETWORK CENTER INC. | 143,360 |
| AS9351 | ZTV CO.,LTD | 143,360 |
| AS7670 | Energia Communications, Inc. | 142,336 |
| AS18077 | Yamaguchi Cable Vision Co.,Ltd | 135,680 |
| AS9619 | Sony Global Solutions Inc. | 135,168 |
| AS2504 | Kyoto University | 132,096 |
| AS37917 | University of Tsukuba | 132,096 |
| AS17687 | National University Corporation Nagoya University | 131,328 |
| AS38635 | Keio University | 131,072 |
| AS17943 | Tokyo Denki University | 131,072 |
| AS4729 | Japan Atomic Energy Agency | 131,072 |
| AS24297 | Osaka Prefecture University | 131,072 |
| AS17516 | NTT COMWARE CORPORATION | 131,072 |
| AS24572 | Yahoo Japan. | 119,808 |
| AS7516 | Tohoku Intelligent Telecommunication Co., Inc. | 119,040 |
| AS17707 | AS for DATAHOTEL, which is one of iDC in Japan, | 115,968 |
| AS3488 | Information Systems Department, Japan Aerospace Exploration Agency | 115,200 |
| AS2554 | Yahoo Japan Corporation | 107,520 |
| AS45684 | Kyocera Communication Systems Co., Ltd. | 102,400 |
| AS9614 | Oita Cable Telecom Co,ltd. | 100,352 |
| AS59108 | KATCH NETWORK INC. | 98,304 |
| AS4678 | Canon IT Solutions Inc. | 95,232 |
| AS4675 | UNIADEX, LTD. | 94,208 |
| AS9993 | ITOCHU Techno-Solutions Corporation | 91,136 |
| AS24282 | KAGOYA JAPAN Inc. | 89,344 |
| AS18097 | D.C.N. Corporation | 88,576 |
| AS9600 | So-net Corporation | 82,944 |
| AS18260 | EHIME CATV CO.,LTD. | 80,896 |
| AS17514 | Otsuka Corp. | 79,872 |
| AS2505 | High Energy Accelerator Research Organization, KEK | 74,240 |
| AS7502 | Advanced Software Technology & Management Research Institute of KYOTO | 74,240 |
| AS58647 | Kagawa University | 73,728 |
| AS17534 | NSK Co.,Ltd. | 72,704 |
| AS23781 | Toyama University | 72,704 |
| AS17673 | MITSUI KNOWLEDGE INDUSTRY CO., LTD. | 71,680 |
| AS17509 | STARNET Co.,Ltd. | 71,680 |
| AS9615 | TOYOHASHI CABLE NETWORK INC. | 71,680 |
| AS24276 | Jupiter Telecommunications Co., Ltd. | 69,632 |
| AS10000 | Nagasaki Cable Media Inc. | 69,632 |
| AS23820 | Rakuten,Inc. | 69,632 |
| AS18082 | Japan Agency for Local Authority Information Systems | 69,632 |
| AS18271 | Sojitz Systems Corporation | 69,632 |
| AS17947 | SAKURA KCS Corporation. | 69,632 |
| AS37918 | Nippon Telegraph and Telephone Corporation | 69,376 |
| AS55391 | INTERNET MULTIFEED CO. | 68,608 |
| AS131921 | GMO CLOUD K.K. | 68,352 |
| AS23720 | Rakuten Communications K.K. | 68,096 |
| AS2526 | Unified IT Platform Office. IT Services Division. HITACHI,Ltd. | 67,584 |
| AS55390 | Tokyo University of Science | 67,584 |
| AS17961 | mitene internet co., ltd. | 67,584 |
| AS23816 | Yahoo Japan Corporation | 67,584 |
| AS4730 | Osaka University | 67,584 |
| AS38628 | HIMEJI CABLE TELEVISION CORPORATION | 66,560 |
| AS24261 | Mie University | 66,304 |
| AS37920 | Shiga University | 66,048 |
| AS17932 | Japan Advanced Institute of Science and Technology | 65,792 |
| AS17944 | Japan Weather Association | 65,792 |
| AS17523 | Aoyama Gakuin University | 65,536 |
| AS37919 | SEGA Holdings Co., Ltd. | 65,536 |
| AS9593 | Nikkei Inc. | 65,536 |
| AS55904 | KOGAKUIN University | 65,536 |
| AS18069 | SOFTBANK TECHNOLOGY CORP. | 65,536 |
| AS9357 | NRI SecureTechnologies, Ltd. | 65,536 |
| AS17960 | University of the Ryukyus | 65,536 |
| AS23623 | Chuo University | 65,536 |
| AS17512 | Japan Airlines International Co., Ltd. | 65,536 |
| AS55380 | Kanazawa University | 65,536 |
| AS24254 | Kyoto Sangyo University | 65,536 |
| AS9591 | National Institute for Fusion Science | 65,536 |
| AS17956 | WASEDA University | 65,536 |
| AS17946 | Gifu University | 65,536 |
| AS37910 | Chubu University | 65,536 |
| AS18087 | Toyo University | 65,536 |
| AS2513 | Japan Science and Technology Agency | 65,536 |
| AS17510 | INFORMATION SERVICES INTERNATIONAL - DENTSU, LTD. | 65,536 |
| AS2508 | Kyushu University | 65,536 |
| AS4677 | Marubeni OKI Network Solutions Inc. | 65,536 |
| AS45673 | Osaka Electro-Communication University | 65,536 |
| AS18124 | Okayama University of Science | 65,536 |
| AS18125 | Ministry of Agriculture, Forestry and Fisheries Research Network | 65,536 |
| AS131159 | Yamagata University | 65,536 |
| AS55379 | Hosei University | 65,536 |
| AS9367 | Tokyo Institute of Technology | 65,536 |
| AS59104 | Soka University | 65,536 |
| AS18128 | RIKEN(Physical and Chemical Research Institute) | 65,536 |
| AS38641 | Osaka Sangyo University | 65,536 |
| AS9355 | National Institute of Information and Communications Technology | 65,536 |
| AS9991 | Hiroshima Shudo University | 65,536 |
| AS17701 | Seinan Gakuin University | 65,536 |
| AS18268 | Naganoken Kyodou Densan Co.Ltd. | 65,536 |
| AS38654 | INES Corporation. | 65,536 |
| AS24275 | TOTO LTD. | 65,536 |
| AS24273 | CANON INC. | 65,536 |
| AS58785 | Tohoku Gakuin University | 65,536 |
| AS23615 | University of Shizuoka | 65,536 |
| AS24268 | National University Corporation Shizuoka University | 65,536 |
| AS9366 | SOLITON-NET | 65,536 |
| AS131897 | National University Corporation ,Ehime University | 65,536 |
| AS131919 | Meiji University | 65,536 |
| AS23779 | NTT Communications Corporation | 65,536 |
| AS18276 | Kansai University | 65,536 |
| AS23807 | Ritsumeikan University | 65,536 |
| AS18148 | Fukuoka University | 65,536 |
| AS24248 | Wakayama University | 65,536 |
| AS10014 | Nihon University | 65,536 |
| AS58652 | Kochi University | 65,536 |
| AS7672 | Hokuden Information System Service Co.,Ltd. | 64,512 |
| AS17686 | ACCELIA | 63,488 |
| AS7511 | SYNAPSE Co.,Ltd. | 63,488 |
| AS23791 | LCV Corporation | 60,416 |
| AS17939 | miyazaki cabletelevision network Co.,LTD | 59,392 |
| AS10006 | SECOM Trust Systems Co.,Ltd. | 58,368 |
| AS4723 | Dolphin | 57,344 |
| AS131932 | JR East Information Systems Company | 57,344 |
| AS59127 | Newmedia Corporation | 55,296 |
| AS9622 | Kurashiki Cable TV | 51,200 |
| AS4680 | Mitsubishi Electric Information Network Corporation | 49,664 |
| AS37892 | Cable Media WAIWAI Co.,Ltd. | 49,152 |
| AS55387 | Japan Communication Inc. | 49,152 |
| AS17675 | Internap Japan Co.,LTD. | 49,152 |
| AS24296 | Yahoo Japan Corporation | 49,152 |
| AS24295 | Internap Japan Co.,Ltd. | 47,104 |
| AS18278 | Cable TV Corporation | 47,104 |
| AS18282 | TONAMI Internet Service(TONAMI TransportationCo.,Ltd.) | 46,592 |
| AS18092 | Kyushu Tele Communications Company | 45,056 |
| AS23637 | Equinix Jpapan Enterprise K.K. | 45,056 |
| AS4693 | CSK-IT MANAGEMENT CORPORATION | 45,056 |
| AS9378 | Jupiter Telecommunications Co., Ltd. | 45,056 |
| AS23785 | SUN FIELD INTERNET LIMITED | 45,056 |
| AS2512 | TCP Inc. | 43,264 |
| AS18136 | Jupiter Telecommunications Co., Ltd. | 43,008 |
| AS38631 | LINE Corporation | 42,752 |
| AS2511 | NTT | 41,728 |
| AS7690 | Mirai Communication Network Inc. | 41,472 |
| AS7676 | TAM-Internet Service (T.A.M Co., Ltd.) | 39,936 |
| AS18135 | BTV Cable Television CO.,LTD. | 38,912 |
| AS17530 | Nihon Network Service Co, .Ltd. | 38,912 |
| AS9998 | ISAO Corporation | 36,864 |
| AS10001 | Mics Network Corporation | 36,864 |
| AS10003 | Ogaki Cable Television Co.,Inc. | 36,864 |
| AS7682 | HOKKAIDO TELECOMMUNICATIONS NETWORK Co., Inc. | 35,840 |
| AS38462 | Osaki Computer Engineering Co.Ltd | 35,328 |
| AS38634 | DWANGO Co.,Ltd. | 34,816 |
| AS17955 | Densan Co., Ltd. | 34,816 |
| AS10019 | Matsusaka Cable-TV Station Inc. | 34,816 |
| AS59121 | Asahi Kasei Networks Corporation | 33,024 |
| AS58793 | NIFTY Corporation | 33,024 |
| AS18150 | NetComBB Co.,Ltd. | 32,768 |
| AS59092 | kronos.Co.,Ltd. | 30,464 |
| AS10015 | Cyber Wave Japan Co., Ltd. | 30,464 |
| AS18134 | Jupiter Telecommunications Co., Ltd. | 29,696 |
| AS18068 | Dream Wave Shizuoka Co. Ltd. | 29,184 |
| AS9607 | BroadBand Tower, Inc. | 29,184 |
| AS7668 | Hokuriku Telecommunication Network Co. | 29,184 |
| AS23783 | Cable Networks Akita Co.,ltd. | 28,416 |
| AS23629 | Obihiro City Cable Co.,Ltd. | 27,136 |
| AS55394 | GREE, Inc. | 26,624 |
| AS17504 | NRI Netcom, Ltd. | 26,624 |
| AS131927 | TV Matsumoto Cablevision | 26,624 |
| AS23624 | Chukai Television Co,.Ltd. | 26,624 |
| AS24255 | Tannan Cable Television Corporation | 25,600 |
| AS10004 | JIN Office Service Inc. | 25,088 |
| AS9601 | Niigata Communication Service | 24,576 |
| AS10012 | Rakuten Communications Corp. | 24,576 |
| AS17950 | SaiNet | 24,576 |
| AS56291 | Ace, Inc. | 24,576 |
| AS10002 | IGAUENO CABLE TELEVISION CO.,LTD | 24,576 |
| AS24249 | JWAY co., Ltd. | 24,576 |
| AS23788 | Jupiter Telecommunications Co., Ltd. | 24,576 |
| AS23661 | CLARA ONLINE, Inc. | 24,576 |
| AS18121 | Ishikawa Computer Center Co.,LTD. | 24,064 |
| AS17682 | 296 BROAD NET Com Inc | 23,552 |
| AS131934 | ICC Corporation | 22,528 |
| AS23786 | San-in Cable Vision CO.,LTD | 22,528 |
| AS132827 | GATEWAY INC | 22,272 |
| AS17691 | NDS Co., Ltd. | 21,504 |
| AS55900 | GLBB Japan KK | 21,504 |
| AS135573 | mediatti broadband communications | 20,992 |
| AS23777 | NTT BUSINESS SOLUTIONS CORPORATION | 20,992 |
| AS9999 | AT TOKYO Corporation | 20,480 |
| AS4695 | Energia Communications, Inc. | 20,480 |
| AS18267 | Doshisha University | 20,480 |
| AS131918 | SHONAN CABLE NETWORK | 20,480 |
| AS24278 | USEN CORPORATION | 20,480 |
| AS45675 | Jupiter Telecommunications Co., Ltd. | 20,480 |
| AS9466 | UUNET Japan Limited | 20,256 |
| AS18129 | OKAYAMA NETWORK INC. | 19,456 |
| AS18283 | Fureai Channel Inc. | 19,456 |
| AS55392 | INTERNET MULTIFEED CO. | 19,456 |
| AS17957 | SOUTH TOKYO CABLETELEVISION | 19,456 |
| AS59109 | Hitachi,Ltd., Cloud services Division | 19,456 |
| AS23784 | SQUARE ENIX CO., LTD. | 18,432 |
| AS131915 | Hamamatsu Cable Television .Inc | 18,432 |
| AS23790 | Jupiter Telecommunications Co., Ltd. | 18,432 |
| AS18274 | Utsunomiya Cable TV Corporation | 18,432 |
| AS10011 | advanscope.inc | 18,432 |
| AS24277 | Okinawa Cable Network Inc. | 18,432 |
| AS131916 | Tokyo Bay Network Co.,Ltd. | 18,432 |
| AS9997 | Suzuka Cable Co.,Ltd | 17,920 |
| AS63770 | Industrial Cyber Security Center of Excellence | 17,408 |
| AS17958 | Kasaoka Cable Vision Co,LTD. | 17,408 |
| AS4711 | INTEC Inc. | 17,408 |
| AS23627 | UEDA CABLE VISION CO.,LTD. | 17,408 |
| AS18094 | Tokyo Cable Network.,INC | 17,408 |
| AS17524 | DS Networks | 16,896 |
| AS18071 | Panasonic Corporation Corporate Information Systems Company | 16,704 |
| AS55384 | Japan Advanced Institute of Science and Technology | 16,384 |
| AS7503 | Air Internet Service Co.,Ltd. | 16,384 |
| AS23635 | CRCCMedia Co.,ltd | 16,384 |
| AS17683 | Wingtechnology Communications, Inc. | 16,384 |
| AS23780 | CTB Media Inc. | 16,384 |
| AS24271 | Iruma CATV co. | 16,384 |
| AS7513 | Hitachi Systems, Ltd. | 16,384 |
| AS18085 | Fujitsu Systems Applications & Support Limited | 16,384 |
| AS7505 | Fujitsu Systems Applications & Support Limited | 16,384 |
| AS55910 | Shibaura Institute of Technology | 16,384 |
| AS9618 | catv-tokushima | 16,384 |
| AS7523 | RICOH JAPAN Corporation | 15,872 |
| AS131899 | DIG Inc. | 15,616 |
| AS23778 | IMIZU CABLE NETWORK CO.,LTD. | 15,360 |
| AS24259 | kanuma cable television Corporation | 14,336 |
| AS23808 | TOSHIMA CABLE NETWORK CO.,LTD | 14,336 |
| AS23805 | Watarase Television Co.,Ltd | 14,336 |
| AS17936 | Cable Television Kani Co.,Inc. | 14,336 |
| AS17931 | Netforest,Inc. | 14,336 |
| AS9604 | FUJI SOFT INCORPORATED | 14,336 |
| AS7677 | Dai Nippon Printing Co., Ltd | 13,568 |
| AS23818 | JETINTERNET Corporation | 13,568 |
| AS24251 | Iwakuni Cable Network Corporation | 13,312 |
| AS18070 | Global Network Core Co.,Ltd. | 13,312 |
| AS63997 | Tsukaeru.net KK | 13,056 |
| AS58650 | Warabi Cable Vision Co., Ltd. | 12,800 |
| AS18266 | Datacore Works Co.,Ltd. | 12,288 |
| AS23628 | Academic newtown Community Cable Service | 12,288 |
| AS23632 | TVT Tsuyama Co.,Ltd. | 12,288 |
| AS18142 | KISTEM Co., Ltd. | 12,288 |
| AS23817 | Fujitsu Limited. | 12,288 |
| AS55388 | ASJ INC. | 12,288 |
| AS18075 | Chupicom Hiroshima Corp. | 12,288 |
| AS18281 | Tokoname New-TV Corporation | 12,288 |
| AS59125 | FAMILY NET JAPAN INCORPORATED | 11,520 |
| AS17661 | NHN Techorus Corp. | 11,264 |
| AS38639 | NTT Communications Corporation | 11,264 |
| AS23620 | DooGA Co., Ltd. | 11,264 |
| AS131925 | FAMILY NET JAPAN INCORPORATED | 11,264 |
| AS59107 | Hachinohe Cable Television Co. | 10,240 |
| AS55385 | Digital Alliance Co.,Ltd. | 10,240 |
| AS131931 | Aomori Cable TV Co., Ltd. | 10,240 |
| AS131926 | Cable Television Saiki Co. , Ltd. | 10,240 |
| AS55381 | CITY-CABLE SHUNAN Corporation | 10,240 |
| AS17696 | Okinawa Telecommunication Network Co.,Inc | 10,240 |
| AS17689 | Hokuden Information Technology,Inc. | 9,728 |
| AS24284 | CyberAgent, Inc. | 9,728 |
| AS45677 | Isahaya Cable Television Co.,Inc. | 9,216 |
| AS7664 | Sanyo Computer Corp.Inc | 9,216 |
| AS9621 | Okinawa Telecommunication Network Co.,Inc | 9,216 |
| AS24279 | SENDAI CATV CO.,LTD. | 9,216 |
| AS23775 | Tamashima TV Inc. | 9,216 |
| AS37922 | Cable TV Yamagata Co.,Ltd. | 9,216 |
| AS132418 | Outscale SAS | 9,216 |
| AS132726 | SanyuNet corp. | 8,704 |
| AS173 | Electrical Communications Laboratories | 8,704 |
| AS17678 | Gunma Internet Co,.ltd | 8,704 |
| AS37908 | KIBI Cable Television Co.,Ltd. | 8,704 |
| AS18258 | Morgan Stanley Japan Limited | 8,448 |
| AS23796 | NTT Service Evolution Laboratories | 8,192 |
| AS2523 | JSPS 163rd Committee on Internet Technology | 8,192 |
| AS17518 | Shiojiri City | 8,192 |
| AS55899 | LEON TECHNOLOGY, Inc. | 8,192 |
| AS7521 | INTERNET MULTIFEED CO. | 8,192 |
| AS24336 | DIGITALBANK, Inc., Regional ISP in Japan | 8,192 |
| AS4719 | Onkyo Corporation | 8,192 |
| AS9358 | Kanden Information Systems Company,Incorporated | 8,192 |
| AS7663 | FUJIMIC INC. | 8,192 |
| AS7665 | Okayama Prefectural Government | 8,192 |
| AS17940 | CYBER LINKS Co.,Ltd. | 8,192 |
| AS17694 | Deutsche Bank Group, Japan BGP connection | 8,192 |
| AS4672 | IBM Japan, Ltd. | 8,192 |
| AS17677 | UCOM Corporation | 8,192 |
| AS7678 | Prox System Design Inc. | 8,192 |
| AS23804 | Nonprofit Organization Kitaura Hana Net | 8,192 |
| AS38043 | Sophia Reserch Institute, Ltd. | 8,192 |
| AS131933 | TAMA Television Co., Ltd | 8,192 |
| AS7686 | Technology Networks Inc. | 8,192 |
| AS23618 | Ibara Broadcasting Company | 8,192 |
| AS23619 | SMARTVALUE Co.,Ltd. | 8,192 |
| AS59096 | Meiji Gakuin University | 8,192 |
| AS59091 | Kanagawa Institute of Technology | 8,192 |
| AS9352 | KuMaGaYaNet | 7,424 |
| AS23822 | Hagi Cable Network Co., Ltd | 7,168 |
| AS17948 | EditNet, Incorporated | 7,168 |
| AS131900 | Directorz Co.,Ltd. | 7,168 |
| AS17693 | YAMATO SYSTEM DEVELOPMENT CO., LTD. | 7,168 |
| AS18264 | Seikei Eizo Network Inc. | 7,168 |
| AS23829 | NTT NEOMEIT YAMAGUCHI CORPORATION | 6,912 |
| AS17505 | SOFTBANK MOBILE Corp. | 6,656 |
| AS131893 | RICOH Company, Ltd. | 6,400 |
| AS63772 | extride inc. | 6,400 |
| AS38715 | Regional-IX ASN Tottori pref Japan. | 6,400 |
| AS23613 | New Media Tokushima Co.,ltd. | 6,144 |
| AS24289 | Kagawa T.V Broadcast Network Co,.Ltd | 6,144 |
| AS7517 | ICOMT Inc. | 6,144 |
| AS23639 | NTT Bizlink, Inc. | 6,144 |
| AS24512 | HAL Internet, Internet Service Provider, Tottori, Japan | 6,144 |
| AS24290 | Heart Network Co.,LTD | 6,144 |
| AS17680 | SCSK Corporation | 6,144 |
| AS23641 | NS Computer Service Corporation | 6,144 |
| AS59094 | esu2 Corporation | 6,144 |
| AS131923 | Mihara Cable Television Ltd. | 6,144 |
| AS18088 | Kyuden Infocom Company Inc | 6,144 |
| AS23776 | NEC Corporation | 6,144 |
| AS23631 | Sofu System, Inc | 6,144 |
| AS9353 | MEDIAWARS co.,ltd. | 6,144 |
| AS23827 | Azumino Network Community TV | 6,144 |
| AS37914 | Advanced Software Technology and Management Research Institute of KYOTO | 5,632 |
| AS7660 | Asia Pacific Advanced Network - Japan | 5,376 |
| AS17937 | NIKKEI ADVANCED SYSTEMS INC. | 5,376 |
| AS135401 | SAP | 5,120 |
| AS18259 | NTT Communications Corporation | 5,120 |
| AS23614 | Kochi Systems Co., Ltd. | 5,120 |
| AS38638 | Ip Core Corporation | 5,120 |
| AS45687 | Minamikyusyu CableTV Net Inc. | 5,120 |
| AS131911 | HONJYO CABLE VISION CO., LTD. | 5,120 |
| AS37916 | A.T.WORKS,Inc. | 5,120 |
| AS37907 | DigiRock, Inc. | 5,120 |
| AS7529 | NetIRD Inc. | 5,120 |
| AS38651 | Mixi,Inc. | 5,120 |
| AS55376 | KCV communications CO.,LTD. | 5,120 |
| AS58788 | Chiroro-Net Co.,Ltd. | 5,120 |
| AS37897 | AXEL NETWORKS, INC. | 4,608 |
| AS132095 | HEWLETT PACKARD-SHINSUNA COLO | 4,352 |
| AS55912 | University of Kochi | 4,352 |
| AS23794 | Club iT Corporation | 4,096 |
| AS9363 | FUJITSU KANSAI-CHUBU NET-TECH LIMITED | 4,096 |
| AS10016 | Minaminihon Information Processing Center Co Ltd | 4,096 |
| AS7527 | Japan Internet Exchange Co., Ltd. | 4,096 |
| AS23801 | NTT Communications | 4,096 |
| AS23795 | Fitec Corp. | 4,096 |
| AS23798 | VR Techno Center,inc | 4,096 |
| AS18383 | CAHI Corporation | 4,096 |
| AS18290 | Mimedia Corporation | 4,096 |
| AS18289 | AT&T JAPAN KK | 4,096 |
| AS23773 | EKZM co.,ltd. | 4,096 |
| AS9990 | Nippon Information and Communication Corporation | 4,096 |
| AS132119 | BNP Paribas | 4,096 |
| AS18265 | ZEXIS CORPORATION | 4,096 |
| AS18146 | Intec NetCore, Inc. | 4,096 |
| AS18143 | Mitsubishi Research Institute DCS Co.,Ltd. | 4,096 |
| AS18141 | HBA | 4,096 |
| AS23824 | Future Spirits Co.,Ltd. | 4,096 |
| AS18263 | MEITETSUCOM Co., Ltd. | 4,096 |
| AS23836 | RELATION Co., Ltd. | 4,096 |
| AS23967 | Produce On Demand Inc. Streaming Contents Delivery Service Tokyo | 4,096 |
| AS18140 | Yahoo Japan Corporation | 4,096 |
| AS24264 | Kanazawa Institute of Technology | 4,096 |
| AS59102 | GENES Co., Ltd. | 4,096 |
| AS17953 | BroadBand Security, Inc. | 4,096 |
| AS55889 | Equinix Jpapan Enterprise K.K. | 4,096 |
| AS18086 | PFU LIMITED | 4,096 |
| AS17513 | Kids-way Corporation | 4,096 |
| AS18074 | First Riding Technology Inc. | 4,096 |
| AS18138 | HI-NET INC. | 4,096 |
| AS18072 | NTT Communications, Corp. | 4,096 |
| AS18067 | Humeia Corporation | 4,096 |
| AS37898 | digitiminimi, inc. | 4,096 |
| AS17934 | National Institute of Information and Communications Technology | 4,096 |
| AS45690 | Tokushima Central TV Co.,Inc. | 4,096 |
| AS45672 | Koga Cable TV Co., Ltd. | 4,096 |
| AS17685 | SQUARE ENIX CO., LTD. | 4,096 |
| AS17699 | MEDiA K.K. | 4,096 |
| AS17688 | ShineOn LTD | 4,096 |
| AS38652 | Ginzado Co.,Ltd. | 4,096 |
| AS45688 | The University of Tokyo Interfaculty Initiative in Information Studies | 3,592 |
| AS18127 | Ibaraki Prefectural Government | 3,584 |
| AS23748 | Cat Networks K.K. | 3,584 |
| AS55569 | Criteo Corp | 3,584 |
| AS37984 | Chikushi Jogakuen University, Non-transit AS. | 3,328 |
| AS133027 | ZenLogic Internet Ltd | 3,328 |
| AS55902 | TS-NET of TOSET, Inc. in Japan | 3,328 |
| AS24470 | MAIS | 3,328 |
| AS45680 | DOVA Corporation | 3,328 |
| AS38633 | Value Core Inc. | 3,072 |
| AS58791 | GMO Internet,Inc | 3,072 |
| AS45846 | Shiga area POP AS Number | 3,072 |
| AS24270 | CRC Solutions Corp., | 3,072 |
| AS23616 | Hitachi Information Systems, Ltd. | 3,072 |
| AS24293 | FUJITSU SYSTEMS WEST LIMITED | 3,072 |
| AS23828 | Misaki Town | 3,072 |
| AS59116 | American International Group KK | 3,072 |
| AS58653 | UD Trucks Corporation, Volvo Information Technology Japan | 3,072 |
| AS37915 | Wakayama Prefectural Government | 3,072 |
| AS18211 | Nomura India Services Pvt Ltd | 3,072 |
| AS136782 | Kirin Networks | 2,816 |
| AS2515 | Japan Network Information Center | 2,816 |
| AS59103 | SoftEther Corporation | 2,816 |
| AS136407 | Virtustream Cloud Services Australia Pty Limited | 2,560 |
| AS38627 | Baidu, Inc. | 2,560 |
| AS55898 | Yahoo Japan Corporation | 2,560 |
| AS59118 | NRI SecureTechnologies, Ltd. | 2,560 |
| AS137445 | PF LINK SYSTEMS | 2,560 |
| AS37891 | JR TOKAI Information Systems Company | 2,560 |
| AS37900 | NTT Communications Corporation | 2,560 |
| AS24121 | Equinix Asia Pacific | 2,304 |
| AS45682 | Excite Japan Co., Ltd. | 2,304 |
| AS24229 | IX-layers, Inc. | 2,304 |
| AS18272 | Benesse InfoShell Co.,Ltd | 2,048 |
| AS131928 | Tottori Teletopia Co., Ltd. | 2,048 |
| AS24253 | J-Stream Inc. | 2,048 |
| AS59123 | Kakaku.com, Inc. | 2,048 |
| AS59095 | ACCELIA | 2,048 |
| AS131929 | Yamanashi CATV Co,. ltd | 2,048 |
| AS24288 | Accutechs Co., Ltd. | 2,048 |
| AS24262 | HAMANASU INFORMATION Co., Ltd. | 2,048 |
| AS59129 | LogicLinks, Inc. | 2,048 |
| AS55393 | Midokura Japan K.K. | 2,048 |
| AS24265 | NTT Communications Corporation | 2,048 |
| AS59112 | Plus One marketing Ltd. | 2,048 |
| AS24286 | Weathernews,Inc. | 2,048 |
| AS37912 | IPRIO Corporation. | 2,048 |
| AS58784 | Rissho University | 2,048 |
| AS131907 | Iwami Cablevision Co.,Ltd. | 2,048 |
| AS59117 | RBNET Co.,Ltd. | 2,048 |
| AS55383 | YYY Group, Inc. | 2,048 |
| AS131902 | Sony Corporation | 2,048 |
| AS7530 | BroadBand Tower, Inc. | 2,048 |
| AS18090 | IMS Corporation | 2,048 |
| AS18076 | Institute of Advanced Media Arts and Sciences | 2,048 |
| AS23633 | Niigata Communication Service | 2,048 |
| AS59101 | mirai-bs corporation | 2,048 |
| AS59126 | NCT CO.,LTD. | 2,048 |
| AS24250 | Miyagin Computer Service Co.,ltd | 2,048 |
| AS38642 | Yoshizou XYZ Solutions | 2,048 |
| AS37889 | J-PARC Center | 1,792 |
| AS131914 | datadockInc. | 1,792 |
| AS38643 | UNIADEX, LTD. | 1,792 |
| AS136506 | LEON CO.LTD | 1,792 |
| AS134396 | AusRegistry Anycast system | 1,792 |
| AS4697 | NTT PF Labs | 1,792 |
| AS23799 | National Defense Academy | 1,792 |
| AS24280 | Hitachi Systems, Ltd. | 1,536 |
| AS132504 | QUALITIA Co.,Ltd | 1,536 |
| AS18139 | Hitachi Solutions, Ltd. | 1,536 |
| AS38636 | DeNA, Co. Ltd. | 1,536 |
| AS18123 | INAOKI EDUCATIONAL INSTITUTION | 1,536 |
| AS4710 | NTT | 1,536 |
| AS136574 | Zheye Networks | 1,280 |
| AS58648 | AT-I, Inc. | 1,280 |
| AS7674 | NTT Communications Corporation | 1,280 |
| AS133203 | SBI BITS Co., Ltd. | 1,280 |
| AS7667 | KDDI R&D Laboratories, INC. | 1,280 |
| AS4785 | xTom Limited | 1,280 |
| AS131904 | Cyber Feel Inc | 1,280 |
| AS38629 | NTT Communications Corporation | 1,280 |
| AS58654 | BLESS Co.,Ltd. | 1,024 |
| AS136178 | FIL Japan Holdings K.K. | 1,024 |
| AS59097 | Okinawa Cross Head Co., Ltd. | 1,024 |
| AS137001 | OSOA Co.,LTD. | 1,024 |
| AS23885 | Oracle Corporation | 1,024 |
| AS137912 | Global Broadband K.K | 1,024 |
| AS58645 | Miyagi Cable TV Co.,Ltd | 1,024 |
| AS59122 | Ranger-Systems Co., Ltd. | 1,024 |
| AS24263 | HONDA MOTOR Co., Ltd. | 1,024 |
| AS55378 | QUICK Corp. | 1,024 |
| AS58792 | WirelessGate, Inc. | 1,024 |
| AS58789 | DUNAMIS Co.,Ltd | 1,024 |
| AS7500 | WIDE Project | 1,024 |
| AS59110 | BPS Inc. | 1,024 |
| AS59105 | Home NOC Operators Group | 1,024 |
| AS24477 | Netapp inc. | 1,024 |
| AS38648 | F-REGI Co.,Ltd. | 1,024 |
| AS55896 | Videx Inc. | 1,024 |
| AS55894 | Who's Next | 1,024 |
| AS55891 | WATCH TOWER BIBLE AND TRACT SOCIETY | 1,024 |
| AS55890 | Suntory Business Expert Limited | 1,024 |
| AS131896 | SSI Lab Inc. | 1,024 |
| AS18091 | Teikyo University | 1,024 |
| AS55382 | Nagato city office | 1,024 |
| AS55375 | SmartInsight Inc. | 1,024 |
| AS54415 | WIZ TECHNOLOGIES | 1,024 |
| AS59099 | BroadBand Tower, Inc. | 1,024 |
| AS23826 | Daido University | 1,024 |
| AS4774 | A-Bone by Internet Initiative Japan Inc. | 1,024 |
| AS131160 | Wire and Wireless Co.,Ltd. | 1,024 |
| AS131898 | Yahoo Japan Corporation | 1,024 |
| AS4718 | Cyber Kansai Project | 1,024 |
| AS131920 | WirelessGate, Inc. | 1,024 |
| AS131909 | Okinawa Data Center | 1,024 |
| AS131910 | SORACOM. INC. | 1,024 |
| AS131912 | Cybozu,Inc. | 1,024 |
| AS131905 | Japan Registry Services Co., Ltd. | 1,024 |
| AS133476 | First Innovation K.K. | 1,024 |
| AS131901 | FIDESSA KK | 1,024 |
| AS45676 | SBI TradeWinTech Co.,Ltd. | 1,024 |
| AS63774 | Kamoike.net LLP | 1,024 |
| AS18149 | Japan Registry Service Co., Ltd. | 1,024 |
| AS63771 | Border Gateway Protocol Network Analysis Project | 1,024 |
| AS59093 | IMABARI CATV CORPORATION | 1,024 |
| AS136769 | WingTecJapan G.K | 768 |
| AS10209 | Japan HUB and Data Center | 768 |
| AS55907 | GMO Internet,Inc | 768 |
| AS55905 | TOP CLOUD Inc. | 768 |
| AS37893 | TradeWeb Europe Limited | 768 |
| AS24283 | MIEDEN SYSTEM SOLUTION .LTD | 768 |
| AS206689 | Beeks Financial Cloud Ltd | 768 |
| AS37888 | HORIBA, Ltd. | 768 |
| AS38033 | Yahoo Inc. | 768 |
| AS59114 | Recruit Holdings Co.,Ltd. | 512 |
| AS55396 | NRI SecureTechnologies, Ltd | 512 |
| AS136779 | Schneider Electric Japan Ltd | 512 |
| AS24291 | MITSUI & CO., LTD. | 512 |
| AS7661 | Network Organization for Research and Technologyin Hokkaido | 512 |
| AS55895 | N.S.Computer Service Co.,Ltd. | 512 |
| AS131158 | Nara Institute of Science and Technology, National University Corporation | 512 |
| AS4717 | WIDE Project | 512 |
| AS24260 | Board of trusty: Kinjo-Gakuen | 512 |
| AS133782 | Elsevier Ltd | 512 |
| AS132211 | FX Corporate LLC | 512 |
| AS137462 | Rakuten Communications K.K. | 512 |
| AS131155 | NTT Communications Corporation | 512 |
| AS38658 | Liquidnet APNIC POC Role Identity | 512 |
| AS63917 | Amway Japan G.K | 512 |
| AS45691 | Elliott Advisors Asia Limited | 512 |
| AS55873 | St. Jude Medical | 512 |
| AS132451 | 2142-1;KUKIOKA;MAEDA; | 512 |
| AS24257 | Japan Internet Exchange Co., Ltd. | 512 |
| AS59120 | Tsukuba Internet Service Corporation | 512 |
| AS131895 | Okinawa Institute of science and technology | 384 |
| AS131894 | UNIADEX, LTD. | 256 |
| AS131913 | Niigata ken | 256 |
| AS133900 | Gilead Sciences, Inc. | 256 |
| AS45674 | BIGLOBE Inc. | 256 |
| AS23833 | Marusan Securities Co., LTD. | 256 |
| AS23774 | Japan Registry Service Co., Ltd. | 256 |
| AS131917 | Toshiba I.S. corp | 256 |
| AS55373 | Foundation for Biomedical Research and Innovation | 256 |
| AS23634 | WIDE Project | 256 |
| AS58651 | GMO Internet,Inc | 256 |
| AS23761 | Xpedite Systems | 256 |
| AS55909 | Kochi National College of Technology | 256 |
| AS55908 | Nomura Research Institute,Ltd. | 256 |
| AS18080 | Sopiafons Co.,Ltd | 256 |
| AS131924 | Kansai Airports | 256 |
| AS137008 | 1120 Shimokuzawa Chuo-ku Sagamihara-shi Kanagawa-ken | 256 |
| AS131078 | KDDI R&D Laboratories, INC. | 256 |
| AS55949 | Technopro Holdings | 256 |
| AS4777 | Asia Pacific Network Information Centre | 256 |
| AS135646 | Luginbash AS | 256 |
| AS132496 | SBI BITS Co., Ltd. | 256 |
| AS38646 | WIDE Project | 256 |
| AS4690 | WIDE Project | 256 |
| AS37905 | Brastel Co.,Ltd | 256 |
| AS45678 | ABN AMRO Clearing Tokyo Co., Ltd. | 256 |
| AS37906 | NetIRD Inc. | 256 |
| AS59128 | Kyoto University Microcomputer Club | 256 |
| AS24287 | National Institute of Informatics | 256 |
| AS45217 | Tora Trading Services Ltd. | 256 |
| AS63773 | Birdie Mobile Inc. | 256 |
| AS59111 | Akita International University | 256 |
| AS59113 | RICOH JAPAN Corporation | 256 |
| AS134827 | EY Business Initiative Co., Ltd | 256 |
| AS59115 | CYBERDYNE Inc. | 256 |
| AS24274 | Actelion Pharmaceuticals Japan Ltd. | 256 |
| AS58786 | GMO Internet,Inc | 256 |
| AS131906 | Gap Japan K.K. | 256 |
| AS23642 | OBIS | 256 |
| AS135642 | Abadi Internet Services LLC | 256 |
| AS59124 | KYOTO Prefectural Government | 256 |
| AS24252 | Japan Registry Service Co., Ltd. | 256 |
| AS24047 | Internet Systems Consortium, Inc. | 256 |
| AS23940 | TR-IP-ADMIN | 256 |
| AS23929 | Ubiquitous Corp. Data Center Network. | 256 |
| AS137875 | ShedDC | 256 |
| AS55377 | Sadiatec Co., Ltd | 256 |
| AS131903 | Nomura Research Institute,Ltd. | 256 |
| AS58649 | GMO Internet,Inc | 256 |
| AS24256 | SOFTBANK Corp. | 256 |
| AS135304 | VMWare Incorporation | 256 |
| AS18284 | Isetan Data Center Co., Ltd. | 256 |
| AS2507 | Block of 32 AS numbers from AS2497 to AS2528 | 0 |
| AS10005 | Japan Network Information Center | 0 |
| AS10007 | SoftBank Mobile Corp. | 0 |
| AS10008 | Japan Network Information Center | 0 |
| AS10009 | AREWORKS Rworks | 0 |
| AS10017 | Japan Network Information Center | 0 |
| AS10018 | Japan Network Information Center | 0 |
| AS10020 | Japan Network Information Center | 0 |
| AS10033 | iBasis Tokyo ICO | 0 |
| AS18137 | JPNIC | 0 |
| AS10124 | Amazon INFS private | 0 |
| AS17951 | Kobe Community Exchange Co. | 0 |
| AS17952 | Japan Network Information Center | 0 |
| AS10807 | Hitachi Business International, Ltd. | 0 |
| AS17954 | Japan Network Information Center | 0 |
| AS1233 | National Space Development Agency | 0 |
| AS132024 | Rebyc Inc. | 0 |
| AS131074 | APNIC R&D Centre JP | 0 |
| AS18261 | JPNIC | 0 |
| AS18262 | JPNIC | 0 |
| AS18277 | Kurashiki University of Science and the Arts | 0 |
| AS131073 | PACNET | 0 |
| AS131075 | Nippon Telegraph and Telephone Corporation PF Labs., | 0 |
| AS131079 | INTERNET MULTIFEED CO. | 0 |
| AS131080 | SAKURA Internet Inc. | 0 |
| AS131081 | Intec NetCore, Inc. | 0 |
| AS131082 | Japan Internet Exchange Co., Ltd. | 0 |
| AS131084 | MKI Network Solutions, Ltd. | 0 |
| AS131085 | Niigata Communication Service | 0 |
| AS131086 | Densan Co., Ltd. | 0 |
| AS131106 | AS for DATAHOTEL, which is one of iDC in Japan, | 0 |
| AS18279 | Bukkyo University | 0 |
| AS131152 | BBIX,Inc. | 0 |
| AS131153 | KVH Co., Ltd. | 0 |
| AS131154 | NANO OPT Media, Inc. | 0 |
| AS131157 | IMS Corporation | 0 |
| AS131908 | INTEC Inc. | 0 |
| AS131922 | Birdie Mobile Inc. | 0 |
| AS131930 | Tokyo Broadcasting System Television, Inc. | 0 |
| AS131935 | Kamoike.net LLP | 0 |
| AS131936 | UNIVERSAL MUSIC LLC | 0 |
| AS131937 | Joetsu Cable Vision | 0 |
| AS132120 | Internet Systems Consortium | 0 |
| AS132888 | Freak | 0 |
| AS132290 | AstraZeneca UK Limited | 0 |
| AS132373 | Asian Web Company Inc. | 0 |
| AS132383 | Y's Enterprise Co.,Ltd. | 0 |
| AS132592 | Star Co,.Ltd. | 0 |
| AS132833 | Research Management Ltd. | 0 |
| AS132906 | EVM Networks | 0 |
| AS133795 | Choopa, LLC | 0 |
| AS133869 | SalesForce.com, Inc. | 0 |
| AS134532 | AT&T Global Network Services | 0 |
| AS137407 | EIC INC | 0 |
| AS137819 | Beeks Financial Cloud (Japan) | 0 |
| AS18095 | Reitaku University | 0 |
| AS18096 | JPNIC | 0 |
| AS17515 | Japan Network Information Center | 0 |
| AS17517 | Japan Network Information Center | 0 |
| AS17503 | Japan Network Information Center | 0 |
| AS17507 | Japan Network Information Center | 0 |
| AS17508 | Japan Network Information Center | 0 |
| AS17519 | Japan Network Information Center | 0 |
| AS17520 | Japan Network Information Center | 0 |
| AS17521 | Kochi University of Technology | 0 |
| AS17522 | NIPPON TELEGRAPH AND TELEPHONE WEST CORPORATION | 0 |
| AS17525 | Japan Cablenet Limited | 0 |
| AS17526 | Japan Network Information Center | 0 |
| AS17527 | CHITA MEDIAS NETWORK INC. | 0 |
| AS17528 | Okinawa Tele Message Corporation | 0 |
| AS17531 | Japan Network Information Center | 0 |
| AS17532 | Tokyo Polytechnic University | 0 |
| AS17533 | Japan Network Information Center | 0 |
| AS17674 | Japan Network Information Center | 0 |
| AS17679 | Japan Network Information Center | 0 |
| AS17681 | Japan Network Information Center | 0 |
| AS17684 | Japan Network Information Center | 0 |
| AS17690 | Japan Network Information Center | 0 |
| AS17692 | Kyocera Communication Systems Co., Ltd. | 0 |
| AS17695 | MLJS | 0 |
| AS17697 | NTT PC Communications, Inc. | 0 |
| AS17700 | Japan Cablenet Limited | 0 |
| AS17702 | Japan Network Information Center | 0 |
| AS17703 | Japan Network Information Center | 0 |
| AS17704 | Japan Network Information Center | 0 |
| AS17751 | for assignment to JPNIC members | 0 |
| AS17795 | Netvein Corporation | 0 |
| AS17938 | SOFTBANK TELECOM Corp. | 0 |
| AS17930 | Japan Network Information Center | 0 |
| AS17933 | Nippon Telegraph and Telephone East Corporation | 0 |
| AS17935 | Japan Network Information Center | 0 |
| AS17942 | Japan Network Information Center | 0 |
| AS17945 | iTV Co,Ltd | 0 |
| AS17949 | Tokyo University of Technorogy | 0 |
| AS17959 | ICN K-techsjapan Inc. | 0 |
| AS17977 | SINGTEL-JP | 0 |
| AS18083 | JPNIC | 0 |
| AS18073 | JPNIC | 0 |
| AS18078 | JPNIC | 0 |
| AS18079 | JPNIC | 0 |
| AS18084 | PACNET | 0 |
| AS18089 | KDDI Corporation | 0 |
| AS18093 | JPNIC | 0 |
| AS18098 | JPNIC | 0 |
| AS18130 | JPNIC | 0 |
| AS18131 | NTT Communications Corporation Innovative IP Architecture Center | 0 |
| AS18132 | JPNIC | 0 |
| AS18122 | Advanced Software Technology & Management Research Institute of KYOTO | 0 |
| AS18133 | GAMANIA | 0 |
| AS18145 | JPNIC | 0 |
| AS18147 | JPNIC | 0 |
| AS18151 | COMPUTER ENGINEERING & CONSULTING LTD. | 0 |
| AS18152 | JPNIC | 0 |
| AS18269 | Kai Creates Inc. | 0 |
| AS18270 | Toin University of Yokohama | 0 |
| AS18273 | JPNIC | 0 |
| AS18275 | JPNIC | 0 |
| AS18280 | JPNIC | 0 |
| AS18285 | JPNIC | 0 |
| AS18286 | Osaka City University | 0 |
| AS18287 | OCV Odakyu Telecommunication Services | 0 |
| AS18288 | JPNIC | 0 |
| AS23800 | Fukui National College of Technology | 0 |
| AS23625 | TOKAI Communications Corporation | 0 |
| AS23626 | Verizon Japan Ltd | 0 |
| AS23815 | Japan Internet Exchange Co., Ltd. | 0 |
| AS23621 | GINGA SYSTEM CO.,LTD | 0 |
| AS23612 | AS23612 | 0 |
| AS23617 | Koutoku-Sangyou Co | 0 |
| AS23622 | Tsuru Gakuen | 0 |
| AS23630 | CAC Inc. | 0 |
| AS23636 | AS23636 | 0 |
| AS23638 | AMIXCOM Inc. | 0 |
| AS23640 | BBIX,Inc. | 0 |
| AS23643 | AS23643 | 0 |
| AS23782 | Fujitsu System Solutions Ltd | 0 |
| AS23797 | IXO | 0 |
| AS23787 | AS23787 | 0 |
| AS23789 | AS23789 | 0 |
| AS23792 | AS23792 | 0 |
| AS23802 | AS23802 | 0 |
| AS23803 | The University of Tokyo | 0 |
| AS23806 | Chupicom Hiroshima Corp. | 0 |
| AS23809 | Televi Naruto .CO.,LTD | 0 |
| AS23810 | IC-NET Corporation | 0 |
| AS23811 | SIGA2009 | 0 |
| AS23812 | Japan Broadband Communications Corporation | 0 |
| AS23813 | SORUN Corporation | 0 |
| AS23814 | WIDE Project | 0 |
| AS23819 | AS23819 | 0 |
| AS23821 | AS23821 | 0 |
| AS23823 | AS23823 | 0 |
| AS23825 | AS23825 | 0 |
| AS23830 | Gaitame.com Co.,Ltd. | 0 |
| AS23831 | NISIOWARI CATV CORPORATION | 0 |
| AS23832 | AS23832 | 0 |
| AS23834 | AS23834 | 0 |
| AS23835 | Sega Corporation | 0 |
| AS23926 | Yahoo Inc. | 0 |
| AS24056 | SINGTEL-EXPAN | 0 |
| AS24114 | Equinix Asia Pacific | 0 |
| AS24258 | AS24258 | 0 |
| AS24266 | AS24266 | 0 |
| AS24267 | AS24267 | 0 |
| AS24269 | AS24269 | 0 |
| AS24272 | AS24272 | 0 |
| AS24281 | NTT SmartConnect Corporation | 0 |
| AS24285 | AS24285 | 0 |
| AS24292 | NS Solutions Corporation | 0 |
| AS24294 | AS24294 | 0 |
| AS2498 | Block of 32 AS numbers from AS2497 to AS2528 | 0 |
| AS2499 | Japan Network Information Center | 0 |
| AS2502 | The University of Tokyo | 0 |
| AS2503 | Tohoku Open Internet Community | 0 |
| AS2521 | Yahoo Japan Corporation | 0 |
| AS2509 | Block of 32 AS numbers from AS2497 to AS2528 | 0 |
| AS2517 | Block of 32 AS numbers from AS2497 to AS2528 | 0 |
| AS2520 | Block of 32 AS numbers from AS2497 to AS2528 | 0 |
| AS2524 | EJWORKS CORPORATION | 0 |
| AS2525 | Block of 32 AS numbers from AS2497 to AS2528 | 0 |
| AS2528 | Block of 32 AS numbers from AS2497 to AS2528 | 0 |
| AS2713 | AT&T Jens Corporation | 0 |
| AS37909 | Wakkanai Hokusei Gakuen University | 0 |
| AS2915 | AT&T Jens Corporation | 0 |
| AS3391 | ASCIInet Corporation | 0 |
| AS3510 | Real World Computing Partnership | 0 |
| AS37904 | Softbank Mobile Corp. | 0 |
| AS3775 | Global Network Solutions, IBM Japan, Ltd. | 0 |
| AS37890 | AS37890 | 0 |
| AS37894 | AS37894 | 0 |
| AS37895 | Ryukoku University | 0 |
| AS37896 | AS37896 | 0 |
| AS37899 | NIPPON TELEGRAPH AND TELEPHONE WEST CORPORATION | 0 |
| AS37901 | NIPPON TELEGRAPH AND TELEPHONE EAST CORPORATION | 0 |
| AS37902 | Nomura Research Institute, Ltd. | 0 |
| AS37911 | AS37911 | 0 |
| AS37913 | AS37913 | 0 |
| AS37921 | AS37921 | 0 |
| AS37923 | NTT Communications Corporation | 0 |
| AS37924 | Ministry of Land, Infrastructure and Transport Kinki Regional Development Bureau | 0 |
| AS37925 | USEN CORPORATION | 0 |
| AS37926 | E-Times Technologies Co., Ltd. | 0 |
| AS37927 | Nomura Researth Institute, Ltd. | 0 |
| AS38080 | Foresightwave INC. | 0 |
| AS38610 | APNIC R&D Centre JP | 0 |
| AS38630 | NTT West R&D Center | 0 |
| AS38632 | cross-connect niigata co.,ltd. | 0 |
| AS38637 | AS38637 | 0 |
| AS38640 | SAKURA Internet Inc. | 0 |
| AS38644 | INTERNET MULTIFEED CO. | 0 |
| AS38645 | NTT Communications Corporation | 0 |
| AS38647 | AS38647 | 0 |
| AS38649 | AS38649 | 0 |
| AS38650 | AS38650 | 0 |
| AS38653 | Japan Post Holdings Co., Ltd. | 0 |
| AS38655 | SaiNet Corporation | 0 |
| AS38656 | CSK Securities Service Co. | 0 |
| AS38910 | JP Morgan Chase & Co. | 0 |
| AS4197 | Yahoo Japan Corporation | 0 |
| AS4709 | NetLaputa Corporation | 0 |
| AS4251 | TWICS Co. Ltd. | 0 |
| AS59098 | Cable DR Cloud Joint Venture | 0 |
| AS63775 | YAKAGE CABLE TELEVISION | 0 |
| AS7488 | Yahoo Japan Corporation | 0 |
| AS45679 | Tatsumi, Tomo | 0 |
| AS45681 | GIGAPRIZE Co. | 0 |
| AS7673 | ejworks corporation | 0 |
| AS7688 | Nippon Internet Access Inc. | 0 |
| AS45139 | Microsoft Corp | 0 |
| AS45436 | Green Net Co., Ltd. | 0 |
| AS45683 | AS45683 | 0 |
| AS45685 | Rikkyo Gakuin Rikkyo University | 0 |
| AS45686 | INTERNET MULTIFEED CO. | 0 |
| AS45689 | Convivial Net | 0 |
| AS4674 | AS4674 | 0 |
| AS4676 | AS4676 | 0 |
| AS4679 | AS4679 | 0 |
| AS4681 | Yahoo Japan Corporation | 0 |
| AS4682 | SoftBank Mobile Corp. | 0 |
| AS4683 | Phase One, Inc. | 0 |
| AS4684 | NTT PC Communications, Inc. | 0 |
| AS4687 | AS4687 | 0 |
| AS4688 | Internet Initiative Japan Inc. | 0 |
| AS4689 | AS4689 | 0 |
| AS4691 | Dream Train Internet Inc. | 0 |
| AS4692 | InternetWare Co., LTD. | 0 |
| AS4696 | AS4696 | 0 |
| AS4698 | InterLink Co., Ltd. | 0 |
| AS4699 | AS4699 | 0 |
| AS4700 | Niji-Net Inc. | 0 |
| AS4701 | AS4701 | 0 |
| AS4702 | AS4702 | 0 |
| AS4703 | AS4703 | 0 |
| AS4705 | AS4705 | 0 |
| AS4706 | AS4706 | 0 |
| AS4707 | AS4707 | 0 |
| AS4708 | Nippon Internet Access Inc. | 0 |
| AS4712 | JAPAN TOBACCO INC. | 0 |
| AS4714 | AS4714 | 0 |
| AS4715 | AS4715 | 0 |
| AS4716 | KDDI CORPORATION | 0 |
| AS4720 | AS4720 | 0 |
| AS4722 | SoftBank Corp. | 0 |
| AS4724 | AS4724 | 0 |
| AS4726 | AS4726 | 0 |
| AS4727 | KYODO PRINTING BUSINESS SOLUTIONS CO.,LTD | 0 |
| AS4728 | AS4728 | 0 |
| AS4732 | KDDI CORPORATION | 0 |
| AS4731 | AS4731 | 0 |
| AS4733 | SAISON INFORMATION SYSTEMS CO. | 0 |
| AS4734 | AS4734 | 0 |
| AS4735 | AS4735 | 0 |
| AS55395 | Rakuten Communications Corp. | 0 |
| AS55901 | Sony Computer Entertainment Inc | 0 |
| AS55903 | Tokyo Stock Exchange, Inc. | 0 |
| AS55906 | Ustream Asia, Inc. | 0 |
| AS55372 | University of the Ryukyus | 0 |
| AS55374 | WIDE Project | 0 |
| AS55386 | AS55386 | 0 |
| AS55389 | Japan Network Enabler Corporation | 0 |
| AS55457 | A4 Ltd | 0 |
| AS56218 | QGPOP2 | 0 |
| AS55475 | Impact Co Ltd | 0 |
| AS55748 | MORSE | 0 |
| AS55817 | Nippon Telegraph and Telephone Corporation PF Labs | 0 |
| AS55892 | DNPDC | 0 |
| AS55893 | NTT DATA CORPORATION | 0 |
| AS55897 | SAKURA Internet Inc. | 0 |
| AS55911 | Tokuyama College of Technology | 0 |
| AS55935 | erg Co. | 0 |
| AS56021 | NetResource corporation | 0 |
| AS56022 | MTA corporation | 0 |
| AS56023 | SmartRams Co., Ltd. | 0 |
| AS56024 | Biz-front Inc | 0 |
| AS56025 | AMY INC | 0 |
| AS56029 | CELL INC. | 0 |
| AS56033 | Rakushasu Inc | 0 |
| AS59100 | Kochi Gakuen College | 0 |
| AS59106 | SKYLINKS INC. | 0 |
| AS58787 | Comzware Inc | 0 |
| AS58790 | ZENRIN DataCom Co.,LTD. | 0 |
| AS59119 | HIDATAKAYAMA CABLE NETWORK INC. | 0 |
| AS58646 | FreeBit Co.,Ltd. | 0 |
| AS59130 | NTT Communications Corperation | 0 |
| AS58531 | Tibanne Co. Ltd. | 0 |
| AS58535 | MarketPrizm BV | 0 |
| AS58728 | Instream | 0 |
| AS63524 | Equinix Asia Pacific | 0 |
| AS63776 | AS63776 | 0 |
| AS63777 | AS63777 | 0 |
| AS63778 | AS63778 | 0 |
| AS63779 | AS63779 | 0 |
| AS63780 | AS63780 | 0 |
| AS63781 | AS63781 | 0 |
| AS63782 | AS63782 | 0 |
| AS63783 | AS63783 | 0 |
| AS63784 | AS63784 | 0 |
| AS63785 | AS63785 | 0 |
| AS63786 | AS63786 | 0 |
| AS63787 | AS63787 | 0 |
| AS63788 | AS63788 | 0 |
| AS63789 | AS63789 | 0 |
| AS63790 | AS63790 | 0 |
| AS63791 | AS63791 | 0 |
| AS63792 | AS63792 | 0 |
| AS63793 | AS63793 | 0 |
| AS63794 | AS63794 | 0 |
| AS63795 | AS63795 | 0 |
| AS63796 | AS63796 | 0 |
| AS63797 | AS63797 | 0 |
| AS63798 | AS63798 | 0 |
| AS63799 | AS63799 | 0 |
| AS63800 | AS63800 | 0 |
| AS63801 | AS63801 | 0 |
| AS63802 | AS63802 | 0 |
| AS63803 | AS63803 | 0 |
| AS63804 | AS63804 | 0 |
| AS63805 | AS63805 | 0 |
| AS63806 | AS63806 | 0 |
| AS63807 | AS63807 | 0 |
| AS63808 | AS63808 | 0 |
| AS63809 | AS63809 | 0 |
| AS63978 | Chi-X Japan Limited | 0 |
| AS7501 | AS7501 | 0 |
| AS7504 | AS7504 | 0 |
| AS7507 | AS7507 | 0 |
| AS7508 | AS7508 | 0 |
| AS7509 | Hokkaido University | 0 |
| AS7510 | AS7510 | 0 |
| AS7512 | WITH Network | 0 |
| AS7515 | NTT Communications Corporation | 0 |
| AS7518 | AS7518 | 0 |
| AS7519 | AS7519 | 0 |
| AS7520 | AS7520 | 0 |
| AS7525 | AS7525 | 0 |
| AS7526 | Mitsubishi Electric Information Network Corporation | 0 |
| AS7528 | AS7528 | 0 |
| AS7531 | GenomeNet Project | 0 |
| AS7669 | DIGITAL TECHNOLOGIES CORPORATION | 0 |
| AS7662 | AS7662 | 0 |
| AS7666 | Mitsubishi Corporation | 0 |
| AS7675 | AS7675 | 0 |
| AS7680 | AS7680 | 0 |
| AS7681 | AS7681 | 0 |
| AS7683 | trunk inc. | 0 |
| AS7685 | AS7685 | 0 |
| AS7689 | AS7689 | 0 |
| AS7691 | AS7691 | 0 |
| AS9606 | Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency | 0 |
| AS9608 | HAPPY JAPAN BiNAL INC. | 0 |
| AS9609 | Ymobile Corporation | 0 |
| AS9222 | Intel Online Services Asia | 0 |
| AS9225 | Telstra Global - KK | 0 |
| AS9349 | AS9349 | 0 |
| AS9350 | AS9350 | 0 |
| AS9356 | AS9356 | 0 |
| AS9359 | AS9359 | 0 |
| AS9360 | AS9360 | 0 |
| AS9361 | AS9361 | 0 |
| AS9362 | AS9362 | 0 |
| AS9364 | AS9364 | 0 |
| AS9368 | AS9368 | 0 |
| AS9369 | AS9369 | 0 |
| AS9372 | The University of Electro-Communications | 0 |
| AS9373 | AS9373 | 0 |
| AS9375 | AS9375 | 0 |
| AS9376 | SMARTVALUE Co.,Ltd. | 0 |
| AS9377 | AS9377 | 0 |
| AS9379 | AS9379 | 0 |
| AS9380 | Community Network Center Inc. | 0 |
| AS9602 | Japan Network Information Center | 0 |
| AS9592 | SOFTBANK TELECOM Corp. | 0 |
| AS9594 | Japan Network Information Center | 0 |
| AS9596 | Japan Network Information Center | 0 |
| AS9598 | NTT Communications Corporation | 0 |
| AS9599 | EJWORKS CORPORATION | 0 |
| AS9603 | Japan Network Information Center | 0 |
| AS9610 | Japan Network Information Center | 0 |
| AS9611 | Japan Network Information Center | 0 |
| AS9612 | Japan Network Information Center | 0 |
| AS9613 | Japan Network Information Center | 0 |
| AS9616 | WIDE Project | 0 |
| AS9620 | Japan Network Information Center | 0 |
| AS9935 | AT&T Global Network Services | 0 |
| AS9992 | Japan Network Information Center | 0 |
| AS9994 | Japan Network Information Center | 0 |
| AS9995 | FirstServer, Inc. | 0 |
| AS9996 | KDDI Corporation | 0 |
Details
Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.
This page shows ASNs for Japan. See the global ASN report for network, IP address information and whois details for other countries.