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 | 28,905,728 |
| AS2516 | KDDI CORPORATION | 18,767,360 |
| 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 | IIJ-AS | 3,867,904 |
| AS2518 | BIGLOBE | 3,674,112 |
| AS38895 | Amazon.com, Inc. | 3,368,960 |
| AS2510 | FUJITSU LIMITED | 3,220,224 |
| AS2527 | So-net Entertainment Corporation | 3,210,240 |
| AS17511 | K-Opticom Corporation | 3,129,088 |
| AS9605 | NTT DOCOMO, INC. | 2,327,296 |
| AS4725 | SoftBank Mobile Corp. | 2,242,048 |
| AS10013 | FreeBit Co.,Ltd. | 1,999,104 |
| AS2514 | NTT PC Communications, Inc. | 1,872,384 |
| AS9595 | NTT-ME Corporation | 1,644,544 |
| AS2519 | ARTERIA Networks Corporation | 1,613,824 |
| AS37903 | Ymobile Corporation | 1,491,968 |
| AS10010 | TOKAI Communications Corporation | 1,455,616 |
| 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 | 453,632 |
| 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 | 330,240 |
| AS9371 | SAKURA Internet Inc. | 329,472 |
| AS4704 | Rakuten Communications Corp. | 303,104 |
| 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 |
| AS7524 | ITEC HANKYU HANSHIN CO.,LTD. | 253,952 |
| AS7506 | GMO Internet,Inc | 240,384 |
| AS9354 | Community Network Center Inc. | 208,384 |
| AS18144 | Energia Communications,Inc. | 204,800 |
| AS10026 | PACNET | 201,984 |
| AS2501 | U-TOKYO | 200,704 |
| AS10021 | KVH Co.,Ltd | 200,448 |
| AS23793 | National Institute of Advanced Industrial Science and Technology | 199,936 |
| AS7687 | TOYOTA DIGITAL CRUISE.INCORPORATED | 194,560 |
| AS7514 | Computer Engineering & Consulting, Ltd. | 194,560 |
| AS4686 | BEKKOAME INTERNET INC. | 178,944 |
| AS17941 | Equinix Jpapan Enterprise K.K. | 168,960 |
| AS9374 | EDION Corporation | 165,888 |
| AS17698 | COMMUNITY NETWORK CENTER INCORPORATED. | 153,600 |
| 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 |
| AS17943 | Tokyo Denki University | 131,072 |
| AS24297 | Osaka Prefecture University | 131,072 |
| AS4729 | Japan Atomic Energy Agency | 131,072 |
| AS38635 | Keio University | 131,072 |
| AS17516 | NTT COMWARE CORPORATION | 131,072 |
| AS17529 | COMMUNITY NETWORK CENTER INC. | 126,976 |
| 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 |
| AS23781 | Toyama University | 72,704 |
| AS17534 | NSK Co.,Ltd. | 72,704 |
| AS17673 | MITSUI KNOWLEDGE INDUSTRY CO., LTD. | 71,680 |
| AS17509 | STARNET Co.,Ltd. | 71,680 |
| AS9615 | TOYOHASHI CABLE NETWORK INC. | 71,680 |
| AS23820 | Rakuten,Inc. | 69,632 |
| AS10000 | Nagasaki Cable Media Inc. | 69,632 |
| AS17947 | SAKURA KCS Corporation. | 69,632 |
| AS18271 | Sojitz Systems Corporation | 69,632 |
| AS18082 | Japan Agency for Local Authority Information Systems | 69,632 |
| AS24276 | Jupiter Telecommunications Co., Ltd. | 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 |
| AS4730 | Osaka University | 67,584 |
| AS17961 | mitene internet co., ltd. | 67,584 |
| AS2526 | HITNET | 67,584 |
| AS23816 | Yahoo Japan Corporation | 67,584 |
| AS55390 | Tokyo University of Science | 67,584 |
| AS38628 | HIMEJI CABLE TELEVISION CORPORATION | 66,560 |
| AS24261 | Mie University | 66,304 |
| AS37920 | Shiga University | 66,048 |
| AS2513 | JST | 65,792 |
| AS17944 | Japan Weather Association | 65,792 |
| AS17932 | Japan Advanced Institute of Science and Technology | 65,792 |
| AS55380 | Kanazawa University | 65,536 |
| AS2508 | Kyushu University | 65,536 |
| AS131159 | Yamagata University | 65,536 |
| AS55379 | Hosei University | 65,536 |
| AS38654 | INES Corporation. | 65,536 |
| AS23615 | University of Shizuoka | 65,536 |
| AS18069 | SOFTBANK TECHNOLOGY CORP. | 65,536 |
| AS18087 | Toyo University | 65,536 |
| AS24275 | TOTO LTD. | 65,536 |
| AS24273 | CANON INC. | 65,536 |
| AS18128 | RIKEN(Physical and Chemical Research Institute) | 65,536 |
| AS55904 | KOGAKUIN University | 65,536 |
| AS24268 | National University Corporation Shizuoka University | 65,536 |
| AS24254 | Kyoto Sangyo University | 65,536 |
| AS18148 | Fukuoka University | 65,536 |
| AS24248 | Wakayama University | 65,536 |
| AS17960 | University of the Ryukyus | 65,536 |
| AS17510 | INFORMATION SERVICES INTERNATIONAL - DENTSU, LTD. | 65,536 |
| AS18124 | Okayama University of Science | 65,536 |
| AS18125 | Ministry of Agriculture, Forestry and Fisheries Research Network | 65,536 |
| AS17512 | Japan Airlines International Co., Ltd. | 65,536 |
| AS17956 | WASEDA University | 65,536 |
| AS23807 | Ritsumeikan University | 65,536 |
| AS58652 | Kochi University | 65,536 |
| AS17946 | Gifu University | 65,536 |
| AS18276 | Kansai University | 65,536 |
| AS9991 | Hiroshima Shudo University | 65,536 |
| AS4677 | Marubeni OKI Network Solutions Inc. | 65,536 |
| AS23779 | NTT Communications Corporation | 65,536 |
| AS131919 | Meiji University | 65,536 |
| AS59104 | Soka University | 65,536 |
| AS37910 | Chubu University | 65,536 |
| AS45673 | Osaka Electro-Communication University | 65,536 |
| AS37919 | SEGA Holdings Co., Ltd. | 65,536 |
| AS9593 | Nikkei Inc. | 65,536 |
| AS9591 | National Institute for Fusion Science | 65,536 |
| AS17701 | Seinan Gakuin University | 65,536 |
| AS58785 | Tohoku Gakuin University | 65,536 |
| AS38641 | Osaka Sangyo University | 65,536 |
| AS9367 | Tokyo Institute of Technology | 65,536 |
| AS9366 | SOLITON-NET | 65,536 |
| AS10014 | Nihon University | 65,536 |
| AS131897 | National University Corporation ,Ehime University | 65,536 |
| AS18268 | Naganoken Kyodou Densan Co.Ltd. | 65,536 |
| AS23623 | Chuo University | 65,536 |
| AS9357 | NRI SecureTechnologies, Ltd. | 65,536 |
| AS9355 | National Institute of Information and Communications Technology | 65,536 |
| AS17523 | Aoyama Gakuin University | 65,536 |
| AS7672 | Hokuden Information System Service Co.,Ltd. | 64,512 |
| AS7511 | SYNAPSE Co.,Ltd. | 63,488 |
| AS17686 | ACCELIA | 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 |
| AS59127 | Newmedia Corporation | 55,296 |
| AS24295 | Internap Japan Co.,Ltd. | 54,272 |
| 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 |
| AS24296 | Yahoo Japan Corporation | 49,152 |
| AS17675 | Internap Japan Co.,LTD. | 49,152 |
| AS18278 | Cable TV Corporation | 47,104 |
| AS18282 | TONAMI Internet Service(TONAMI TransportationCo.,Ltd.) | 46,592 |
| AS4693 | CSK-IT MANAGEMENT CORPORATION | 45,056 |
| AS23637 | Equinix Jpapan Enterprise K.K. | 45,056 |
| AS18092 | Kyushu Tele Communications Company | 45,056 |
| AS9378 | Jupiter Telecommunications Co., Ltd. | 45,056 |
| AS23785 | SUN FIELD INTERNET LIMITED | 45,056 |
| AS2512 | UNSPECIFIED | 43,264 |
| AS18136 | Jupiter Telecommunications Co., Ltd. | 43,008 |
| AS38631 | LINE Corporation | 42,752 |
| 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 |
| AS10003 | Ogaki Cable Television Co.,Inc. | 36,864 |
| AS10001 | Mics Network Corporation | 36,864 |
| AS7682 | HOKKAIDO TELECOMMUNICATIONS NETWORK Co., Inc. | 35,840 |
| AS38462 | Osaki Computer Engineering Co.Ltd | 35,328 |
| AS10019 | Matsusaka Cable-TV Station Inc. | 34,816 |
| AS17955 | Densan Co., Ltd. | 34,816 |
| AS59092 | kronos.Co.,Ltd. | 33,536 |
| AS58793 | NIFTY Corporation | 33,024 |
| AS59121 | Asahi Kasei Networks Corporation | 33,024 |
| AS18150 | NetComBB Co.,Ltd. | 32,768 |
| AS10015 | Cyber Wave Japan Co., Ltd. | 30,464 |
| AS18134 | Jupiter Telecommunications Co., Ltd. | 29,696 |
| AS18068 | Dream Wave Shizuoka Co. Ltd. | 29,184 |
| AS7668 | Hokuriku Telecommunication Network Co. | 29,184 |
| AS9607 | BroadBand Tower, Inc. | 29,184 |
| AS23783 | Cable Networks Akita Co.,ltd. | 28,416 |
| AS23629 | Obihiro City Cable Co.,Ltd. | 27,136 |
| AS17504 | NRI Netcom, Ltd. | 26,624 |
| AS131927 | TV Matsumoto Cablevision | 26,624 |
| AS23624 | Chukai Television Co,.Ltd. | 26,624 |
| AS55394 | GREE, Inc. | 26,624 |
| AS24255 | Tannan Cable Television Corporation | 25,600 |
| AS10004 | JIN Office Service Inc. | 25,088 |
| AS56291 | Ace, Inc. | 24,576 |
| AS10002 | IGAUENO CABLE TELEVISION CO.,LTD | 24,576 |
| AS17950 | SaiNet | 24,576 |
| AS10012 | Rakuten Communications Corp. | 24,576 |
| AS9601 | Niigata Communication Service | 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 |
| AS23786 | San-in Cable Vision CO.,LTD | 22,528 |
| AS24249 | JWAY co., Ltd. | 22,528 |
| AS132827 | GATEWAY INC | 22,272 |
| AS55900 | GLBB Japan KK | 21,504 |
| AS17691 | NDS Co., Ltd. | 21,504 |
| AS135573 | mediatti broadband communications | 20,992 |
| AS23777 | NTT BUSINESS SOLUTIONS CORPORATION | 20,992 |
| AS45675 | Jupiter Telecommunications Co., Ltd. | 20,480 |
| AS4695 | Energia Communications, Inc. | 20,480 |
| AS9999 | AT TOKYO Corporation | 20,480 |
| AS18267 | Doshisha University | 20,480 |
| AS24278 | USEN CORPORATION | 20,480 |
| AS9466 | UUNET Japan Limited | 20,256 |
| AS17957 | SOUTH TOKYO CABLETELEVISION | 19,456 |
| AS59109 | Hitachi,Ltd., Cloud services Division | 19,456 |
| AS55392 | INTERNET MULTIFEED CO. | 19,456 |
| AS18283 | Fureai Channel Inc. | 19,456 |
| AS18129 | OKAYAMA NETWORK INC. | 19,456 |
| AS23790 | Jupiter Telecommunications Co., Ltd. | 18,432 |
| AS131915 | Hamamatsu Cable Television .Inc | 18,432 |
| AS131916 | Tokyo Bay Network Co.,Ltd. | 18,432 |
| AS131918 | SHONAN CABLE NETWORK | 18,432 |
| AS24277 | Okinawa Cable Network Inc. | 18,432 |
| AS10011 | advanscope.inc | 18,432 |
| AS18274 | Utsunomiya Cable TV Corporation | 18,432 |
| AS23784 | SQUARE ENIX CO., LTD. | 18,432 |
| AS9997 | Suzuka Cable Co.,Ltd | 17,920 |
| AS4711 | INTEC Inc. | 17,408 |
| AS63770 | Industrial Cyber Security Center of Excellence | 17,408 |
| AS23627 | UEDA CABLE VISION CO.,LTD. | 17,408 |
| AS18094 | Tokyo Cable Network.,INC | 17,408 |
| AS17958 | Kasaoka Cable Vision Co,LTD. | 17,408 |
| AS17524 | DS Networks | 16,896 |
| AS18071 | Panasonic Corporation Corporate Information Systems Company | 16,704 |
| AS23635 | CRCCMedia Co.,ltd | 16,384 |
| AS7503 | Air Internet Service Co.,Ltd. | 16,384 |
| AS9618 | catv-tokushima | 16,384 |
| AS23780 | CTB Media Inc. | 16,384 |
| AS7505 | Fujitsu Systems Applications & Support Limited | 16,384 |
| AS55910 | Shibaura Institute of Technology | 16,384 |
| AS24271 | Iruma CATV co. | 16,384 |
| AS55384 | Japan Advanced Institute of Science and Technology | 16,384 |
| AS18085 | Fujitsu Systems Applications & Support Limited | 16,384 |
| AS17683 | Wingtechnology Communications, Inc. | 16,384 |
| AS7513 | Hitachi Systems, Ltd. | 16,384 |
| AS7523 | RICOH JAPAN Corporation | 15,872 |
| AS131899 | DIG Inc. | 15,616 |
| AS23778 | IMIZU CABLE NETWORK CO.,LTD. | 15,360 |
| AS23808 | TOSHIMA CABLE NETWORK CO.,LTD | 14,336 |
| AS23805 | Watarase Television Co.,Ltd | 14,336 |
| AS9604 | FUJI SOFT INCORPORATED | 14,336 |
| AS24259 | kanuma cable television Corporation | 14,336 |
| AS17931 | Netforest,Inc. | 14,336 |
| AS17936 | Cable Television Kani Co.,Inc. | 14,336 |
| AS7677 | Dai Nippon Printing Co., Ltd | 13,568 |
| AS23818 | JETINTERNET Corporation | 13,568 |
| AS18070 | Global Network Core Co.,Ltd. | 13,312 |
| AS24251 | Iwakuni Cable Network Corporation | 13,312 |
| AS58650 | Warabi Cable Vision Co., Ltd. | 12,800 |
| AS63997 | Tsukaeru.net KK | 12,544 |
| AS23817 | Fujitsu Limited. | 12,288 |
| AS18075 | Chupicom Hiroshima Corp. | 12,288 |
| AS55388 | ASJ INC. | 12,288 |
| AS18142 | KISTEM Co., Ltd. | 12,288 |
| AS18266 | Datacore Works Co.,Ltd. | 12,288 |
| AS18281 | Tokoname New-TV Corporation | 12,288 |
| AS23628 | Academic newtown Community Cable Service | 12,288 |
| AS23632 | TVT Tsuyama Co.,Ltd. | 12,288 |
| AS59125 | FAMILY NET JAPAN INCORPORATED | 11,520 |
| AS131925 | FAMILY NET JAPAN INCORPORATED | 11,264 |
| AS17661 | NHN Techorus Corp. | 11,264 |
| AS38639 | NTT Communications Corporation | 11,264 |
| AS23620 | DooGA Co., Ltd. | 11,264 |
| AS17696 | Okinawa Telecommunication Network Co.,Inc | 10,240 |
| AS59107 | Hachinohe Cable Television Co. | 10,240 |
| AS55381 | CITY-CABLE SHUNAN Corporation | 10,240 |
| AS131926 | Cable Television Saiki Co. , Ltd. | 10,240 |
| AS55385 | Digital Alliance Co.,Ltd. | 10,240 |
| AS24284 | CyberAgent, Inc. | 9,728 |
| AS17689 | Hokuden Information Technology,Inc. | 9,728 |
| AS45677 | Isahaya Cable Television Co.,Inc. | 9,216 |
| AS24279 | SENDAI CATV CO.,LTD. | 9,216 |
| AS37922 | Cable TV Yamagata Co.,Ltd. | 9,216 |
| AS9621 | Okinawa Telecommunication Network Co.,Inc | 9,216 |
| AS7664 | Sanyo Computer Corp.Inc | 9,216 |
| AS23775 | Tamashima TV Inc. | 9,216 |
| AS132418 | Outscale SAS | 9,216 |
| AS37908 | KIBI Cable Television Co.,Ltd. | 8,704 |
| AS17678 | Gunma Internet Co,.ltd | 8,704 |
| AS132726 | SanyuNet corp. | 8,704 |
| AS173 | Electrical Communications Laboratories | 8,704 |
| AS18258 | Morgan Stanley Japan Limited | 8,448 |
| AS7521 | INTERNET MULTIFEED CO. | 8,192 |
| AS17694 | Deutsche Bank Group, Japan BGP connection | 8,192 |
| AS9358 | Kanden Information Systems Company,Incorporated | 8,192 |
| AS7665 | Okayama Prefectural Government | 8,192 |
| AS55899 | LEON TECHNOLOGY, Inc. | 8,192 |
| AS2523 | JSPS 163rd Committee on Internet Technology | 8,192 |
| AS4719 | Onkyo Corporation | 8,192 |
| AS17518 | Shiojiri City | 8,192 |
| AS4672 | IBM Japan, Ltd. | 8,192 |
| AS17677 | UCOM Corporation | 8,192 |
| AS7678 | Prox System Design Inc. | 8,192 |
| AS23619 | SMARTVALUE Co.,Ltd. | 8,192 |
| AS7663 | FUJIMIC INC. | 8,192 |
| AS7686 | Technology Networks Inc. | 8,192 |
| AS59096 | Meiji Gakuin University | 8,192 |
| AS23804 | Nonprofit Organization Kitaura Hana Net | 8,192 |
| AS23796 | NTT Service Evolution Laboratories | 8,192 |
| AS38043 | Sophia Reserch Institute, Ltd. | 8,192 |
| AS59091 | Kanagawa Institute of Technology | 8,192 |
| AS17940 | CYBER LINKS Co.,Ltd. | 8,192 |
| AS24336 | DIGITALBANK, Inc., Regional ISP in Japan | 8,192 |
| AS9352 | KuMaGaYaNet | 7,424 |
| AS23822 | Hagi Cable Network Co., Ltd | 7,168 |
| AS131900 | Directorz Co.,Ltd. | 7,168 |
| AS17693 | YAMATO SYSTEM DEVELOPMENT CO., LTD. | 7,168 |
| AS18264 | Seikei Eizo Network Inc. | 7,168 |
| AS17948 | EditNet, Incorporated | 7,168 |
| AS23618 | Ibara Broadcasting Company | 7,168 |
| AS23829 | NTT NEOMEIT YAMAGUCHI CORPORATION | 6,912 |
| AS17505 | SOFTBANK MOBILE Corp. | 6,656 |
| AS63772 | extride inc. | 6,400 |
| AS38715 | Regional-IX ASN Tottori pref Japan. | 6,400 |
| AS131893 | RICOH Company, Ltd. | 6,400 |
| AS131923 | Mihara Cable Television Ltd. | 6,144 |
| AS23639 | NTT Bizlink, Inc. | 6,144 |
| AS23776 | NEC Corporation | 6,144 |
| AS24290 | Heart Network Co.,LTD | 6,144 |
| AS9353 | MEDIAWARS co.,ltd. | 6,144 |
| AS7517 | ICOMT Inc. | 6,144 |
| AS23631 | Sofu System, Inc | 6,144 |
| AS18088 | Kyuden Infocom Company Inc | 6,144 |
| AS23827 | Azumino Network Community TV | 6,144 |
| AS17680 | SCSK Corporation | 6,144 |
| AS23613 | New Media Tokushima Co.,ltd. | 6,144 |
| AS24512 | HAL Internet, Internet Service Provider, Tottori, Japan | 6,144 |
| AS59094 | esu2 Corporation | 6,144 |
| AS23641 | NS Computer Service Corporation | 6,144 |
| AS37914 | Advanced Software Technology and Management Research Institute of KYOTO | 5,632 |
| AS17937 | NIKKEI ADVANCED SYSTEMS INC. | 5,376 |
| AS7660 | Asia Pacific Advanced Network - Japan | 5,376 |
| AS58788 | Chiroro-Net Co.,Ltd. | 5,120 |
| AS37916 | A.T.WORKS,Inc. | 5,120 |
| AS23614 | Kochi Systems Co., Ltd. | 5,120 |
| AS18259 | NTT Communications Corporation | 5,120 |
| AS131911 | HONJYO CABLE VISION CO., LTD. | 5,120 |
| AS135401 | SAP | 5,120 |
| AS24289 | Kagawa T.V Broadcast Network Co,.Ltd | 5,120 |
| AS55376 | KCV communications CO.,LTD. | 5,120 |
| AS38638 | Ip Core Corporation | 5,120 |
| AS45687 | Minamikyusyu CableTV Net Inc. | 5,120 |
| AS7529 | NetIRD Inc. | 5,120 |
| AS38651 | Mixi,Inc. | 5,120 |
| AS37907 | DigiRock, Inc. | 5,120 |
| AS37897 | AXEL NETWORKS, INC. | 4,608 |
| AS132095 | HEWLETT PACKARD-SHINSUNA COLO | 4,352 |
| AS55912 | University of Kochi | 4,352 |
| AS18143 | Mitsubishi Research Institute DCS Co.,Ltd. | 4,096 |
| AS18067 | Humeia Corporation | 4,096 |
| AS10016 | Minaminihon Information Processing Center Co Ltd | 4,096 |
| AS18072 | NTT Communications, Corp. | 4,096 |
| AS18074 | First Riding Technology Inc. | 4,096 |
| AS18265 | ZEXIS CORPORATION | 4,096 |
| AS17934 | National Institute of Information and Communications Technology | 4,096 |
| AS9363 | FUJITSU KANSAI-CHUBU NET-TECH LIMITED | 4,096 |
| AS59116 | American International Group KK | 4,096 |
| AS23795 | Fitec Corp. | 4,096 |
| AS45672 | Koga Cable TV Co., Ltd. | 4,096 |
| AS23801 | NTT Communications | 4,096 |
| AS18141 | HBA | 4,096 |
| AS7527 | Japan Internet Exchange Co., Ltd. | 4,096 |
| AS59102 | GENES Co., Ltd. | 4,096 |
| AS9990 | Nippon Information and Communication Corporation | 4,096 |
| AS18140 | Yahoo Japan Corporation | 4,096 |
| AS17953 | BroadBand Security, Inc. | 4,096 |
| AS23773 | EKZM co.,ltd. | 4,096 |
| AS18138 | HI-NET INC. | 4,096 |
| AS23794 | Club iT Corporation | 4,096 |
| AS17688 | ShineOn LTD | 4,096 |
| AS17699 | MEDiA K.K. | 4,096 |
| AS132119 | BNP Paribas | 4,096 |
| AS23824 | Future Spirits Co.,Ltd. | 4,096 |
| AS18383 | CAHI Corporation | 4,096 |
| AS23836 | RELATION Co., Ltd. | 4,096 |
| AS17513 | Kids-way Corporation | 4,096 |
| AS45690 | Tokushima Central TV Co.,Inc. | 4,096 |
| AS23967 | Produce On Demand Inc. Streaming Contents Delivery Service Tokyo | 4,096 |
| AS17685 | SQUARE ENIX CO., LTD. | 4,096 |
| AS23798 | VR Techno Center,inc | 4,096 |
| AS38652 | Ginzado Co.,Ltd. | 4,096 |
| AS18290 | Mimedia Corporation | 4,096 |
| AS18289 | AT&T JAPAN KK | 4,096 |
| AS55889 | Equinix Jpapan Enterprise K.K. | 4,096 |
| AS37898 | digitiminimi, inc. | 4,096 |
| AS18146 | Intec NetCore, Inc. | 4,096 |
| AS24264 | Kanazawa Institute of Technology | 4,096 |
| AS18263 | MEITETSUCOM Co., Ltd. | 4,096 |
| AS18086 | PFU LIMITED | 4,096 |
| AS45688 | The University of Tokyo Interfaculty Initiative in Information Studies | 3,592 |
| AS133027 | ZenLogic Internet Ltd | 3,584 |
| AS55569 | Criteo Corp | 3,584 |
| AS18127 | Ibaraki Prefectural Government | 3,584 |
| AS24293 | FUJITSU SYSTEMS WEST LIMITED | 3,584 |
| AS37984 | Chikushi Jogakuen University, Non-transit AS. | 3,328 |
| AS55902 | TS-NET of TOSET, Inc. in Japan | 3,328 |
| AS45680 | DOVA Corporation | 3,328 |
| AS37900 | NTT Communications Corporation | 3,328 |
| AS24470 | MAIS | 3,328 |
| AS38633 | Value Core Inc. | 3,072 |
| AS23828 | Misaki Town | 3,072 |
| AS37915 | Wakayama Prefectural Government | 3,072 |
| AS58653 | UD Trucks Corporation, Volvo Information Technology Japan | 3,072 |
| AS24270 | CRC Solutions Corp., | 3,072 |
| AS23616 | Hitachi Information Systems, Ltd. | 3,072 |
| AS45846 | Shiga area POP AS Number | 3,072 |
| AS58791 | GMO Internet,Inc | 3,072 |
| AS18211 | Nomura India Services Pvt Ltd | 3,072 |
| AS2515 | Japan Network Information Center | 2,816 |
| AS59103 | SoftEther Corporation | 2,816 |
| AS38627 | Baidu, Inc. | 2,816 |
| AS23748 | Cat Networks K.K. | 2,816 |
| AS59118 | NRI SecureTechnologies, Ltd. | 2,560 |
| AS137445 | PF LINK SYSTEMS | 2,560 |
| AS136782 | Kirin Networks | 2,560 |
| AS55898 | Yahoo Japan Corporation | 2,560 |
| AS136407 | Virtustream Cloud Services Australia Pty Limited | 2,560 |
| AS37891 | JR TOKAI Information Systems Company | 2,560 |
| AS45682 | Excite Japan Co., Ltd. | 2,304 |
| AS24121 | Equinix Asia Pacific | 2,304 |
| AS24229 | IX-layers, Inc. | 2,304 |
| AS58784 | Rissho University | 2,048 |
| AS59126 | NCT CO.,LTD. | 2,048 |
| AS131928 | Tottori Teletopia Co., Ltd. | 2,048 |
| AS7530 | BroadBand Tower, Inc. | 2,048 |
| AS37912 | IPRIO Corporation. | 2,048 |
| AS59129 | LogicLinks, Inc. | 2,048 |
| AS59095 | ACCELIA | 2,048 |
| AS38634 | DWANGO Co.,Ltd. | 2,048 |
| AS38642 | Yoshizou XYZ Solutions | 2,048 |
| AS18090 | IMS Corporation | 2,048 |
| AS131902 | Sony Corporation | 2,048 |
| AS18272 | Benesse InfoShell Co.,Ltd | 2,048 |
| AS131907 | Iwami Cablevision Co.,Ltd. | 2,048 |
| AS24288 | Accutechs Co., Ltd. | 2,048 |
| AS55393 | Midokura Japan K.K. | 2,048 |
| AS24250 | Miyagin Computer Service Co.,ltd | 2,048 |
| AS131929 | Yamanashi CATV Co,. ltd | 2,048 |
| AS24253 | J-Stream Inc. | 2,048 |
| AS55383 | YYY Group, Inc. | 2,048 |
| AS59112 | Plus One marketing Ltd. | 2,048 |
| AS18076 | Institute of Advanced Media Arts and Sciences | 2,048 |
| AS24286 | Weathernews,Inc. | 2,048 |
| AS59101 | mirai-bs corporation | 2,048 |
| AS24262 | HAMANASU INFORMATION Co., Ltd. | 2,048 |
| AS24265 | NTT Communications Corporation | 2,048 |
| AS23633 | Niigata Communication Service | 2,048 |
| AS59123 | Kakaku.com, Inc. | 2,048 |
| AS37889 | J-PARC Center | 1,792 |
| AS4697 | NTT PF Labs | 1,792 |
| AS59117 | RBNET Co.,Ltd. | 1,792 |
| AS38643 | UNIADEX, LTD. | 1,792 |
| AS136506 | LEON CO.LTD | 1,792 |
| AS131914 | datadockInc. | 1,792 |
| AS23799 | National Defense Academy | 1,792 |
| AS18139 | Hitachi Solutions, Ltd. | 1,536 |
| AS4710 | NTT | 1,536 |
| AS24280 | Hitachi Systems, Ltd. | 1,536 |
| AS18123 | INAOKI EDUCATIONAL INSTITUTION | 1,536 |
| AS132504 | QUALITIA Co.,Ltd | 1,536 |
| AS38636 | DeNA, Co. Ltd. | 1,536 |
| AS134396 | AusRegistry Anycast system | 1,536 |
| AS133203 | SBI BITS Co., Ltd. | 1,280 |
| AS7667 | KDDI R&D Laboratories, INC. | 1,280 |
| AS58648 | AT-I, Inc. | 1,280 |
| AS131904 | Cyber Feel Inc | 1,280 |
| AS136574 | Zheye Networks | 1,280 |
| AS38629 | NTT Communications Corporation | 1,280 |
| AS7674 | NTT Communications Corporation | 1,280 |
| AS55896 | Videx Inc. | 1,024 |
| AS133476 | First Innovation K.K. | 1,024 |
| AS7500 | WIDE Project | 1,024 |
| AS18149 | Japan Registry Service Co., Ltd. | 1,024 |
| AS63774 | Kamoike.net LLP | 1,024 |
| AS63771 | Border Gateway Protocol Network Analysis Project | 1,024 |
| AS59122 | Ranger-Systems Co., Ltd. | 1,024 |
| AS136178 | FIL Japan Holdings K.K. | 1,024 |
| AS59114 | Recruit Holdings Co.,Ltd. | 1,024 |
| AS59110 | BPS Inc. | 1,024 |
| AS58645 | Miyagi Cable TV Co.,Ltd | 1,024 |
| AS58792 | WirelessGate, Inc. | 1,024 |
| AS58789 | DUNAMIS Co.,Ltd | 1,024 |
| AS59105 | Home NOC Operators Group | 1,024 |
| AS58654 | BLESS Co.,Ltd. | 1,024 |
| AS59099 | BroadBand Tower, Inc. | 1,024 |
| AS137001 | OSOA Co.,LTD. | 1,024 |
| AS59097 | Okinawa Cross Head Co., Ltd. | 1,024 |
| AS59093 | IMABARI CATV CORPORATION | 1,024 |
| AS23826 | Daido University | 1,024 |
| AS23885 | Oracle Corporation | 1,024 |
| AS55894 | Who's Next | 1,024 |
| AS55891 | WATCH TOWER BIBLE AND TRACT SOCIETY | 1,024 |
| AS55890 | Suntory Business Expert Limited | 1,024 |
| AS24263 | HONDA MOTOR Co., Ltd. | 1,024 |
| AS55382 | Nagato city office | 1,024 |
| AS55378 | QUICK Corp. | 1,024 |
| AS24477 | Netapp inc. | 1,024 |
| AS55375 | SmartInsight Inc. | 1,024 |
| AS18091 | Teikyo University | 1,024 |
| AS54415 | WIZ TECHNOLOGIES | 1,024 |
| AS4774 | A-Bone by Internet Initiative Japan Inc. | 1,024 |
| AS131160 | Wire and Wireless Co.,Ltd. | 1,024 |
| AS4718 | Cyber Kansai Project | 1,024 |
| AS131905 | Japan Registry Services Co., Ltd. | 1,024 |
| AS131909 | Okinawa Data Center | 1,024 |
| AS131920 | WirelessGate, Inc. | 1,024 |
| AS131898 | Yahoo Japan Corporation | 1,024 |
| AS131901 | FIDESSA KK | 1,024 |
| AS45676 | SBI TradeWinTech Co.,Ltd. | 1,024 |
| AS38648 | F-REGI Co.,Ltd. | 1,024 |
| AS131910 | SORACOM. INC. | 1,024 |
| AS131912 | Cybozu,Inc. | 1,024 |
| AS135646 | Luginbash AS | 768 |
| AS37888 | HORIBA, Ltd. | 768 |
| AS10209 | Japan HUB and Data Center | 768 |
| AS131896 | SSI Lab Inc. | 768 |
| AS38033 | Yahoo Inc. | 768 |
| AS206689 | Beeks Financial Cloud Ltd | 768 |
| AS55905 | TOP CLOUD Inc. | 768 |
| AS37893 | TradeWeb Europe Limited | 768 |
| AS136769 | WingTecJapan G.K | 768 |
| AS24283 | MIEDEN SYSTEM SOLUTION .LTD | 768 |
| AS24291 | MITSUI & CO., LTD. | 512 |
| AS45691 | Elliott Advisors Asia Limited | 512 |
| AS131155 | NTT Communications Corporation | 512 |
| AS7661 | Network Organization for Research and Technologyin Hokkaido | 512 |
| AS131158 | Nara Institute of Science and Technology, National University Corporation | 512 |
| AS63917 | Amway Japan G.K | 512 |
| AS55396 | NRI SecureTechnologies, Ltd | 512 |
| AS24260 | Board of trusty: Kinjo-Gakuen | 512 |
| AS4717 | WIDE Project | 512 |
| AS59120 | Tsukuba Internet Service Corporation | 512 |
| AS38658 | Liquidnet APNIC POC Role Identity | 512 |
| AS137462 | Rakuten Communications K.K. | 512 |
| AS24257 | Japan Internet Exchange Co., Ltd. | 512 |
| AS136779 | Schneider Electric Japan Ltd | 512 |
| AS133782 | Elsevier Ltd | 512 |
| AS55895 | N.S.Computer Service Co.,Ltd. | 512 |
| AS55907 | GMO Internet,Inc | 512 |
| AS132451 | 2142-1;KUKIOKA;MAEDA; | 512 |
| AS55873 | St. Jude Medical | 512 |
| AS132211 | FX Corporate LLC | 512 |
| AS131895 | Okinawa Institute of science and technology | 384 |
| AS58786 | GMO Internet,Inc | 256 |
| AS23634 | WIDE Project | 256 |
| AS45678 | ABN AMRO Clearing Tokyo Co., Ltd. | 256 |
| AS131894 | UNIADEX, LTD. | 256 |
| AS59124 | KYOTO Prefectural Government | 256 |
| AS135642 | Abadi Internet Services LLC | 256 |
| AS59128 | Kyoto University Microcomputer Club | 256 |
| AS63773 | Birdie Mobile Inc. | 256 |
| AS135304 | VMWare Incorporation | 256 |
| AS134827 | EY Business Initiative Co., Ltd | 256 |
| AS45674 | BIGLOBE Inc. | 256 |
| AS38646 | WIDE Project | 256 |
| AS131078 | KDDI R&D Laboratories, INC. | 256 |
| AS18080 | Sopiafons Co.,Ltd | 256 |
| AS4777 | Asia Pacific Network Information Centre | 256 |
| AS132496 | SBI BITS Co., Ltd. | 256 |
| AS131906 | Gap Japan K.K. | 256 |
| AS55373 | Foundation for Biomedical Research and Innovation | 256 |
| AS131924 | Kansai Airports | 256 |
| AS131913 | Niigata ken | 256 |
| AS55377 | Sadiatec Co., Ltd | 256 |
| AS24287 | National Institute of Informatics | 256 |
| AS24274 | Actelion Pharmaceuticals Japan Ltd. | 256 |
| AS131903 | Nomura Research Institute,Ltd. | 256 |
| AS18284 | Isetan Data Center Co., Ltd. | 256 |
| AS4690 | WIDE Project | 256 |
| AS55908 | Nomura Research Institute,Ltd. | 256 |
| AS55909 | Kochi National College of Technology | 256 |
| AS24256 | SOFTBANK Corp. | 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 |
| AS37905 | Brastel Co.,Ltd | 256 |
| AS37906 | NetIRD Inc. | 256 |
| AS23833 | Marusan Securities Co., LTD. | 256 |
| AS55949 | Technopro Holdings | 256 |
| AS137875 | ShedDC | 256 |
| AS137008 | 1120 Shimokuzawa Chuo-ku Sagamihara-shi Kanagawa-ken | 256 |
| AS58649 | GMO Internet,Inc | 256 |
| AS58651 | GMO Internet,Inc | 256 |
| AS23774 | Japan Registry Service Co., Ltd. | 256 |
| AS23761 | Xpedite Systems | 256 |
| AS131917 | Toshiba I.S. corp | 256 |
| AS23642 | OBIS | 256 |
| AS59111 | Akita International University | 256 |
| AS45217 | Tora Trading Services Ltd. | 256 |
| AS59113 | RICOH JAPAN Corporation | 256 |
| AS59115 | CYBERDYNE Inc. | 256 |
| AS133900 | Gilead Sciences, Inc. | 256 |
| AS9996 | KDDI Corporation | 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 |
| AS10124 | Amazon INFS private | 0 |
| AS17681 | Japan Network Information Center | 0 |
| AS10807 | Hitachi Business International, Ltd. | 0 |
| AS17697 | NTT PC Communications, Inc. | 0 |
| AS18277 | Kurashiki University of Science and the Arts | 0 |
| AS18279 | Bukkyo University | 0 |
| AS1233 | National Space Development Agency | 0 |
| AS131073 | PACNET | 0 |
| AS131074 | APNIC R&D Centre JP | 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 |
| 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 |
| AS131931 | Aomori Cable TV Co., Ltd. | 0 |
| AS131932 | JR East Information Systems Company | 0 |
| AS131933 | TAMA Television Co., Ltd | 0 |
| AS131934 | ICC Corporation | 0 |
| AS132024 | Rebyc Inc. | 0 |
| AS132120 | Internet Systems Consortium | 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 |
| AS132888 | Freak | 0 |
| AS132906 | EVM Networks | 0 |
| AS133795 | Choopa, LLC | 0 |
| AS133869 | SalesForce.com, Inc. | 0 |
| AS134532 | AT&T Global Network Services | 0 |
| AS136790 | LizCat (Shanghai) Limited | 0 |
| AS137407 | EIC INC | 0 |
| AS137819 | Beeks Financial Cloud (Japan) | 0 |
| AS137912 | Global Broadband K.K | 0 |
| AS17507 | Japan Network Information Center | 0 |
| AS17508 | Japan Network Information Center | 0 |
| AS17503 | Japan Network Information Center | 0 |
| AS17515 | Japan Network Information Center | 0 |
| AS17517 | 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 |
| AS17679 | Japan Network Information Center | 0 |
| AS17684 | Japan Network Information Center | 0 |
| AS17674 | Japan Network Information Center | 0 |
| AS17690 | Japan Network Information Center | 0 |
| AS17692 | Kyocera Communication Systems Co., Ltd. | 0 |
| AS17695 | MLJS | 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 |
| AS17951 | Kobe Community Exchange Co. | 0 |
| AS17952 | Japan Network Information Center | 0 |
| AS17954 | Japan Network Information Center | 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 |
| AS18089 | KDDI Corporation | 0 |
| AS18083 | JPNIC | 0 |
| AS18073 | JPNIC | 0 |
| AS18078 | JPNIC | 0 |
| AS18079 | JPNIC | 0 |
| AS18084 | Asia Netcom Japan Corp. | 0 |
| AS18093 | JPNIC | 0 |
| AS18095 | Reitaku University | 0 |
| AS18096 | JPNIC | 0 |
| AS18098 | JPNIC | 0 |
| AS18147 | JPNIC | 0 |
| AS18122 | Advanced Software Technology & Management Research Institute of KYOTO | 0 |
| AS18130 | JPNIC | 0 |
| AS18131 | NTT Communications Corporation Innovative IP Architecture Center | 0 |
| AS18132 | JPNIC | 0 |
| AS18133 | GAMANIA | 0 |
| AS18137 | JPNIC | 0 |
| AS18145 | JPNIC | 0 |
| AS18151 | COMPUTER ENGINEERING & CONSULTING LTD. | 0 |
| AS18152 | JPNIC | 0 |
| AS18261 | JPNIC | 0 |
| AS18262 | 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 |
| AS23782 | Fujitsu System Solutions Ltd | 0 |
| AS23797 | IXO | 0 |
| AS38632 | cross-connect niigata co.,ltd. | 0 |
| AS23800 | Fukui National College of Technology | 0 |
| AS23814 | WIDE Project | 0 |
| AS23815 | Japan Internet Exchange Co., Ltd. | 0 |
| AS23830 | Gaitame.com Co.,Ltd. | 0 |
| AS23612 | AS23612 | 0 |
| AS23617 | Koutoku-Sangyou Co | 0 |
| AS23621 | GINGA SYSTEM CO.,LTD | 0 |
| AS23622 | Tsuru Gakuen | 0 |
| AS23625 | TOKAI Communications Corporation | 0 |
| AS23626 | Verizon Japan Ltd | 0 |
| AS23831 | NISIOWARI CATV CORPORATION | 0 |
| AS23630 | CAC Inc. | 0 |
| AS23636 | AS23636 | 0 |
| AS23638 | AMIXCOM Inc. | 0 |
| AS23640 | BBIX,Inc. | 0 |
| AS23643 | AS23643 | 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 |
| AS23819 | AS23819 | 0 |
| AS23821 | AS23821 | 0 |
| AS23823 | AS23823 | 0 |
| AS23825 | AS23825 | 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 |
| AS2507 | Block of 32 AS numbers from AS2497 to AS2528 | 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 |
| AS2521 | IDC | 0 |
| AS2522 | Japan Network Information Center | 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 |
| AS2915 | AT&T Jens Corporation | 0 |
| AS38630 | NTT West R&D Center | 0 |
| AS3391 | ASCIInet Corporation | 0 |
| AS3510 | Real World Computing Partnership | 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 |
| AS37904 | Softbank Mobile Corp. | 0 |
| AS37909 | Wakkanai Hokusei Gakuen University | 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 |
| 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 |
| AS4251 | TWICS Co. Ltd. | 0 |
| AS4681 | Yahoo Japan Corporation | 0 |
| AS45679 | Tatsumi, Tomo | 0 |
| AS45681 | GIGAPRIZE Co. | 0 |
| AS45139 | Microsoft Corp | 0 |
| AS45436 | Green Net Co., Ltd. | 0 |
| AS4682 | SoftBank Mobile Corp. | 0 |
| AS45683 | AS45683 | 0 |
| AS45685 | Rikkyo Gakuin Rikkyo University | 0 |
| AS45686 | INTERNET MULTIFEED CO. | 0 |
| AS45689 | Convivial Net | 0 |
| AS4683 | Phase One, Inc. | 0 |
| AS4674 | AS4674 | 0 |
| AS4676 | AS4676 | 0 |
| AS4679 | AS4679 | 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 |
| AS4709 | NetLaputa Corporation | 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 |
| AS4731 | AS4731 | 0 |
| AS4732 | KDDI CORPORATION | 0 |
| AS4733 | SAISON INFORMATION SYSTEMS CO. | 0 |
| AS4734 | AS4734 | 0 |
| AS4735 | AS4735 | 0 |
| AS4785 | xTom Limited | 0 |
| AS55395 | Rakuten Communications Corp. | 0 |
| AS55372 | University of the Ryukyus | 0 |
| AS55374 | WIDE Project | 0 |
| AS55386 | AS55386 | 0 |
| AS55389 | Japan Network Enabler Corporation | 0 |
| AS55457 | A4 Ltd | 0 |
| AS55475 | Impact Co Ltd | 0 |
| AS55901 | Sony Computer Entertainment Inc | 0 |
| AS55903 | Tokyo Stock Exchange, Inc. | 0 |
| AS55906 | Ustream Asia, Inc. | 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 |
| AS56218 | QGPOP2 | 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 |
| AS59098 | Cable DR Cloud Joint Venture | 0 |
| AS58646 | FreeBit Co.,Ltd. | 0 |
| AS59100 | Kochi Gakuen College | 0 |
| AS59106 | SKYLINKS INC. | 0 |
| AS58790 | ZENRIN DataCom Co.,LTD. | 0 |
| AS58531 | Tibanne Co. Ltd. | 0 |
| AS58535 | MarketPrizm BV | 0 |
| AS58728 | Instream | 0 |
| AS58787 | Comzware Inc | 0 |
| AS59119 | HIDATAKAYAMA CABLE NETWORK INC. | 0 |
| AS59130 | NTT Communications Corperation | 0 |
| AS63524 | Equinix Asia Pacific | 0 |
| AS63775 | AS63775 | 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 |
| AS7488 | Yahoo Japan Corporation | 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 |
| AS7673 | ejworks corporation | 0 |
| AS7688 | Nippon Internet Access Inc. | 0 |
| AS7662 | AS7662 | 0 |
| AS7666 | Mitsubishi Corporation | 0 |
| AS7669 | DIGITAL TECHNOLOGIES CORPORATION | 0 |
| AS7675 | AS7675 | 0 |
| AS7680 | AS7680 | 0 |
| AS7681 | AS7681 | 0 |
| AS7683 | trunk inc. | 0 |
| AS7685 | AS7685 | 0 |
| AS7689 | AS7689 | 0 |
| AS7691 | AS7691 | 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 |
| AS9603 | Japan Network Information Center | 0 |
| AS9594 | Japan Network Information Center | 0 |
| AS9596 | Japan Network Information Center | 0 |
| AS9598 | NTT Communications Corporation | 0 |
| AS9599 | EJWORKS CORPORATION | 0 |
| AS9592 | SOFTBANK TELECOM Corp. | 0 |
| AS9606 | Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency | 0 |
| AS9608 | HAPPY JAPAN BiNAL INC. | 0 |
| AS9609 | Ymobile Corporation | 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 |
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.