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. | 44,921,856 |
| AS4713 | NTT Communications Corporation | 28,956,672 |
| AS2516 | KDDI CORPORATION | 18,449,664 |
| AS2907 | Research Organization of Information and Systems, National Institute of Informatics | 8,670,208 |
| AS17506 | UCOM Corp. | 5,382,144 |
| AS9824 | Jupiter Telecommunication Co. Ltd | 4,745,216 |
| AS38895 | Amazon.com Tech Telecom | 4,200,704 |
| AS2497 | Internet Initiative Japan Inc. | 3,725,312 |
| AS2518 | BIGLOBE Inc. | 3,674,112 |
| AS2527 | So-net Entertainment Corporation | 3,406,848 |
| AS17511 | K-Opticom Corporation | 3,135,744 |
| AS2510 | FUJITSU LIMITED | 3,072,768 |
| AS9605 | NTT DOCOMO, INC. | 2,662,400 |
| AS4725 | SoftBank Mobile Corp. | 2,153,216 |
| AS10013 | FreeBit Co.,Ltd. | 1,909,760 |
| AS2514 | NTT PC Communications, Inc. | 1,871,872 |
| AS2519 | ARTERIA Networks Corporation | 1,676,800 |
| AS9595 | NTT-ME Corporation | 1,644,544 |
| AS37903 | Ymobile Corporation | 1,491,968 |
| AS10010 | TOKAI Communications Corporation | 1,433,344 |
| AS18126 | Chubu Telecommunications Company, Inc. | 1,299,456 |
| 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. | 376,832 |
| AS9370 | SAKURA Internet Inc. | 339,456 |
| AS7684 | SAKURA Internet Inc. | 338,944 |
| AS2500 | WIDE Project | 330,240 |
| AS9371 | SAKURA Internet Inc. | 328,192 |
| AS131932 | JR East Information Systems Company | 327,680 |
| 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 |
| AS4673 | NTT DATA CORPORATION | 258,048 |
| AS7506 | GMO Internet,Inc | 248,576 |
| AS2522 | Japan Network Information Center | 229,120 |
| AS18144 | Energia Communications,Inc. | 218,112 |
| AS2501 | The University of Tokyo | 200,704 |
| AS10026 | Pacnet Global Ltd | 200,704 |
| AS23793 | National Institute of Advanced Industrial Science and Technology | 199,936 |
| AS7687 | TOYOTA DIGITAL CRUISE.INCORPORATED | 198,656 |
| AS7514 | Computer Engineering & Consulting, Ltd. | 194,560 |
| AS9354 | Community Network Center Inc. | 186,880 |
| AS4686 | BEKKOAME INTERNET INC. | 175,360 |
| AS17941 | Equinix Jpapan Enterprise K.K. | 167,936 |
| AS9374 | EDION Corporation | 165,888 |
| AS17698 | COMMUNITY NETWORK CENTER INCORPORATED. | 155,648 |
| AS9351 | ZTV CO.,LTD | 151,552 |
| AS17529 | COMMUNITY NETWORK CENTER INC. | 143,360 |
| AS7670 | Energia Communications, Inc. | 140,288 |
| 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 |
| AS24297 | Osaka Prefecture University | 131,072 |
| AS4729 | Japan Atomic Energy Agency | 131,072 |
| AS17516 | NTT COMWARE CORPORATION | 131,072 |
| AS10021 | KVH Co.,Ltd | 124,672 |
| 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 |
| 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 |
| AS4675 | UNIADEX, LTD. | 75,776 |
| AS7502 | Advanced Software Technology & Management Research Institute of KYOTO | 74,240 |
| AS2505 | High Energy Accelerator Research Organization, KEK | 74,240 |
| AS58647 | Kagawa University | 73,728 |
| AS17534 | NSK Co.,Ltd. | 72,704 |
| AS23781 | Toyama University | 72,704 |
| AS17509 | STARNET Co.,Ltd. | 71,680 |
| AS17673 | MITSUI KNOWLEDGE INDUSTRY CO., LTD. | 71,680 |
| AS9615 | TOYOHASHI CABLE NETWORK INC. | 71,680 |
| AS18082 | Japan Agency for Local Authority Information Systems | 69,632 |
| AS18271 | Sojitz Systems Corporation | 69,632 |
| AS17947 | SAKURA KCS Corporation. | 69,632 |
| AS10000 | Nagasaki Cable Media Inc. | 69,632 |
| AS24276 | Jupiter Telecommunications Co., Ltd. | 69,632 |
| AS23820 | Rakuten,Inc. | 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 | Unified IT Platform Office. IT Services Division. HITACHI,Ltd. | 67,584 |
| AS23816 | Yahoo Japan Corporation | 67,584 |
| AS38628 | HIMEJI CABLE TELEVISION CORPORATION | 66,560 |
| AS24261 | Mie University | 66,304 |
| AS17932 | Japan Advanced Institute of Science and Technology | 65,792 |
| AS17944 | Japan Weather Association | 65,792 |
| AS9367 | Tokyo Institute of Technology | 65,536 |
| AS23807 | Ritsumeikan University | 65,536 |
| AS23779 | NTT Communications Corporation | 65,536 |
| AS23623 | Chuo University | 65,536 |
| AS10014 | Nihon University | 65,536 |
| AS23615 | University of Shizuoka | 65,536 |
| AS9991 | Hiroshima Shudo University | 65,536 |
| AS24248 | Wakayama University | 65,536 |
| AS24254 | Kyoto Sangyo University | 65,536 |
| AS24268 | National University Corporation Shizuoka University | 65,536 |
| AS24273 | CANON INC. | 65,536 |
| AS24275 | TOTO LTD. | 65,536 |
| AS9593 | Nikkei Inc. | 65,536 |
| AS9591 | National Institute for Fusion Science | 65,536 |
| AS18276 | Kansai University | 65,536 |
| AS131159 | Yamagata University | 65,536 |
| AS9366 | SOLITON-NET | 65,536 |
| AS18268 | Naganoken Kyodou Densan Co.Ltd. | 65,536 |
| AS9357 | NRI SecureTechnologies, Ltd. | 65,536 |
| AS131897 | National University Corporation ,Ehime University | 65,536 |
| AS9355 | National Institute of Information and Communications Technology | 65,536 |
| AS18148 | Fukuoka University | 65,536 |
| AS131919 | Meiji University | 65,536 |
| AS2508 | Kyushu University | 65,536 |
| AS18128 | RIKEN(Physical and Chemical Research Institute) | 65,536 |
| AS18125 | Ministry of Agriculture, Forestry and Fisheries Research Network | 65,536 |
| AS18124 | Okayama University of Science | 65,536 |
| AS131930 | Tokyo Broadcasting System Television, Inc. | 65,536 |
| AS2513 | Japan Science and Technology Agency | 65,536 |
| AS18087 | Toyo University | 65,536 |
| AS18069 | SOFTBANK TECHNOLOGY CORP. | 65,536 |
| AS17960 | University of the Ryukyus | 65,536 |
| AS17956 | WASEDA University | 65,536 |
| AS37910 | Chubu University | 65,536 |
| AS59104 | Soka University | 65,536 |
| AS17946 | Gifu University | 65,536 |
| AS58785 | Tohoku Gakuin University | 65,536 |
| AS58652 | Kochi University | 65,536 |
| AS37919 | SEGA Holdings Co., Ltd. | 65,536 |
| AS55904 | KOGAKUIN University | 65,536 |
| AS38641 | Osaka Sangyo University | 65,536 |
| AS55390 | Tokyo University of Science | 65,536 |
| AS17701 | Seinan Gakuin University | 65,536 |
| AS38654 | INES Corporation. | 65,536 |
| AS55380 | Kanazawa University | 65,536 |
| AS55379 | Hosei University | 65,536 |
| AS45673 | Osaka Electro-Communication University | 65,536 |
| AS17510 | INFORMATION SERVICES INTERNATIONAL - DENTSU, LTD. | 65,536 |
| AS17512 | Japan Airlines International Co., Ltd. | 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 |
| AS17939 | miyazaki cabletelevision network Co.,LTD | 59,392 |
| AS10006 | SECOM Trust Systems Co.,Ltd. | 58,368 |
| AS4723 | Dolphin | 57,344 |
| AS4677 | Marubeni OKI Network Solutions Inc. | 57,344 |
| AS59127 | Newmedia Corporation | 55,296 |
| AS23791 | LCV Corporation | 52,224 |
| AS9622 | Kurashiki Cable TV | 51,200 |
| AS4680 | Mitsubishi Electric Information Network Corporation | 49,664 |
| AS17675 | Internap Japan Co.,LTD. | 49,408 |
| AS131938 | NISSAN MOTOR CO.,LTD. | 49,152 |
| AS55387 | Japan Communication Inc. | 49,152 |
| AS37892 | Cable Media WAIWAI 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 |
| AS23785 | SUN FIELD INTERNET LIMITED | 45,056 |
| AS23637 | Equinix Jpapan Enterprise K.K. | 45,056 |
| AS4693 | CSK-IT MANAGEMENT CORPORATION | 45,056 |
| AS9378 | Jupiter Telecommunications Co., Ltd. | 45,056 |
| AS18092 | Kyushu Tele Communications Company | 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 |
| AS131918 | SHONAN CABLE NETWORK | 38,912 |
| AS10001 | Mics Network Corporation | 36,864 |
| AS9998 | ISAO Corporation | 36,864 |
| AS38634 | DWANGO Co.,Ltd. | 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 |
| AS17955 | Densan Co., Ltd. | 34,816 |
| AS10019 | Matsusaka Cable-TV Station Inc. | 34,816 |
| AS59121 | Asahi Kasei Networks Corporation | 33,024 |
| AS10015 | Cyber Wave Japan Co., Ltd. | 33,024 |
| AS58793 | NIFTY Corporation | 33,024 |
| AS18150 | NetComBB Co.,Ltd. | 32,768 |
| AS18068 | Dream Wave Shizuoka Co. Ltd. | 31,232 |
| AS18134 | Jupiter Telecommunications Co., Ltd. | 29,696 |
| AS59092 | kronos.Co.,Ltd. | 29,440 |
| 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 |
| AS17504 | NRI Netcom, Ltd. | 26,880 |
| AS23624 | Chukai Television Co,.Ltd. | 26,624 |
| AS55394 | GREE, Inc. | 26,624 |
| AS131927 | TV Matsumoto Cablevision | 26,624 |
| AS24255 | Tannan Cable Television Corporation | 25,600 |
| AS132827 | GATEWAY INC | 25,088 |
| AS56291 | Ace, Inc. | 24,576 |
| AS9601 | Niigata Communication Service | 24,576 |
| AS23661 | CLARA ONLINE, Inc. | 24,576 |
| AS23788 | Jupiter Telecommunications Co., Ltd. | 24,576 |
| AS17950 | SaiNet | 24,576 |
| AS10012 | Rakuten Communications Corp. | 24,576 |
| AS10002 | IGAUENO CABLE TELEVISION CO.,LTD | 24,576 |
| AS24249 | JWAY co., Ltd. | 24,576 |
| AS18121 | Ishikawa Computer Center Co.,LTD. | 24,064 |
| AS17682 | 296 BROAD NET Com Inc | 23,552 |
| AS135573 | mediatti broadband communications | 23,040 |
| AS131934 | ICC Corporation | 22,528 |
| AS23786 | San-in Cable Vision CO.,LTD | 22,528 |
| AS55900 | GLBB Japan KK | 21,760 |
| AS17691 | NDS Co., Ltd. | 21,504 |
| AS10004 | JIN Office Service Inc. | 20,992 |
| AS23777 | NTT BUSINESS SOLUTIONS CORPORATION | 20,992 |
| AS9466 | UUNET Japan Limited | 20,736 |
| AS4695 | Energia Communications, Inc. | 20,480 |
| AS24278 | USEN CORPORATION | 20,480 |
| AS45675 | Jupiter Telecommunications Co., Ltd. | 20,480 |
| AS18267 | Doshisha University | 20,480 |
| AS131916 | Tokyo Bay Network Co.,Ltd. | 20,480 |
| AS9999 | AT TOKYO Corporation | 20,224 |
| AS55392 | INTERNET MULTIFEED CO. | 19,456 |
| AS59109 | Hitachi,Ltd., Cloud services Division | 19,456 |
| AS17957 | SOUTH TOKYO CABLETELEVISION | 19,456 |
| AS18283 | Fureai Channel Inc. | 19,456 |
| AS18129 | OKAYAMA NETWORK INC. | 19,456 |
| AS24277 | Okinawa Cable Network Inc. | 18,432 |
| AS18274 | Utsunomiya Cable TV Corporation | 18,432 |
| AS23790 | Jupiter Telecommunications Co., Ltd. | 18,432 |
| AS23784 | SQUARE ENIX CO., LTD. | 18,432 |
| AS131915 | Hamamatsu Cable Television .Inc | 18,432 |
| AS10011 | advanscope.inc | 18,432 |
| AS9997 | Suzuka Cable Co.,Ltd | 17,920 |
| AS4711 | INTEC Inc. | 17,408 |
| AS63770 | Industrial Cyber Security Center of Excellence | 17,408 |
| AS18094 | Tokyo Cable Network.,INC | 17,408 |
| AS23627 | UEDA CABLE VISION CO.,LTD. | 17,408 |
| AS17958 | Kasaoka Cable Vision Co,LTD. | 17,408 |
| AS18071 | Panasonic Corporation Corporate Information Systems Company | 16,640 |
| AS23780 | CTB Media Inc. | 16,384 |
| AS55910 | Shibaura Institute of Technology | 16,384 |
| AS7503 | Air Internet Service Co.,Ltd. | 16,384 |
| AS23635 | CRCCMedia Co.,ltd | 16,384 |
| AS55384 | Japan Advanced Institute of Science and Technology | 16,384 |
| AS18085 | Fujitsu Systems Applications & Support Limited | 16,384 |
| AS24271 | Iruma CATV co. | 16,384 |
| AS17683 | Wingtechnology Communications, Inc. | 16,384 |
| AS7505 | Fujitsu Systems Applications & Support Limited | 16,384 |
| AS9618 | catv-tokushima | 16,384 |
| AS7523 | RICOH JAPAN Corporation | 15,872 |
| AS59125 | FAMILY NET JAPAN INCORPORATED | 15,616 |
| AS131899 | DIG Inc. | 15,616 |
| AS131925 | FAMILY NET JAPAN INCORPORATED | 15,360 |
| AS23778 | IMIZU CABLE NETWORK CO.,LTD. | 15,360 |
| AS24259 | kanuma cable television Corporation | 14,336 |
| AS9604 | FUJI SOFT INCORPORATED | 14,336 |
| AS17931 | Netforest,Inc. | 14,336 |
| AS17936 | Cable Television Kani Co.,Inc. | 14,336 |
| AS23808 | TOSHIMA CABLE NETWORK CO.,LTD | 14,336 |
| AS23805 | Watarase Television Co.,Ltd | 14,336 |
| AS7677 | Dai Nippon Printing Co., Ltd | 13,568 |
| AS63997 | Tsukaeru.net, Web Hosting Company, Japan | 13,568 |
| AS24251 | Iwakuni Cable Network Corporation | 13,312 |
| AS18070 | Global Network Core Co.,Ltd. | 13,312 |
| AS17661 | NHN Techorus Corp. | 12,800 |
| AS58650 | Warabi Cable Vision Co., Ltd. | 12,800 |
| AS23628 | Academic newtown Community Cable Service | 12,288 |
| AS18142 | KISTEM Co., Ltd. | 12,288 |
| AS55388 | ASJ INC. | 12,288 |
| AS23817 | Fujitsu Limited. | 12,288 |
| AS18075 | Chupicom Hiroshima Corp. | 12,288 |
| AS18266 | Datacore Works Co.,Ltd. | 12,288 |
| AS18281 | Tokoname New-TV Corporation | 12,288 |
| AS23818 | JETINTERNET Corporation | 11,520 |
| AS55381 | CITY-CABLE SHUNAN Corporation | 11,264 |
| AS38639 | NTT Communications Corporation | 11,264 |
| AS55385 | Digital Alliance Co.,Ltd. | 10,240 |
| AS17696 | Okinawa Telecommunication Network Co.,Inc | 10,240 |
| AS131926 | Cable Television Saiki Co. , Ltd. | 10,240 |
| AS59107 | Hachinohe Cable Television Co. | 10,240 |
| AS131931 | Aomori Cable TV Co., Ltd. | 10,240 |
| AS59126 | NCT CO.,LTD. | 10,240 |
| AS24284 | CyberAgent, Inc. | 9,984 |
| AS17689 | Hokuden Information Technology,Inc. | 9,728 |
| AS9621 | Okinawa Telecommunication Network Co.,Inc | 9,216 |
| AS45677 | Isahaya Cable Television Co.,Inc. | 9,216 |
| AS7664 | Sanyo Computer Corp.Inc | 9,216 |
| AS23775 | Tamashima TV Inc. | 9,216 |
| AS132418 | 1 Rue Royale FR | 9,216 |
| AS24279 | SENDAI CATV CO.,LTD. | 9,216 |
| AS131911 | HONJYO CABLE VISION CO., LTD. | 9,216 |
| AS37922 | Cable TV Yamagata Co.,Ltd. | 9,216 |
| AS173 | Electrical Communications Laboratories | 8,704 |
| AS132726 | 5-3 Miyuki-cho | 8,704 |
| AS37908 | KIBI Cable Television Co.,Ltd. | 8,704 |
| AS17678 | Gunma Internet Co,.ltd | 8,704 |
| AS18258 | Morgan Stanley Japan Limited | 8,448 |
| AS2523 | JSPS 163rd Committee on Internet Technology | 8,192 |
| AS7663 | FUJIMIC INC. | 8,192 |
| AS136782 | Kirin Networks | 8,192 |
| AS131933 | TAMA Television Co., Ltd | 8,192 |
| AS4719 | Onkyo Corporation | 8,192 |
| AS17677 | UCOM Corporation | 8,192 |
| AS23632 | TVT Tsuyama Co.,Ltd. | 8,192 |
| AS55899 | LEON TECHNOLOGY, Inc. | 8,192 |
| AS7686 | Technology Networks Inc. | 8,192 |
| AS23804 | Nonprofit Organization Kitaura Hana Net | 8,192 |
| AS23796 | NTT Service Evolution Laboratories | 8,192 |
| AS59096 | Meiji Gakuin University | 8,192 |
| AS7678 | Prox System Design Inc. | 8,192 |
| AS17694 | Deutsche Bank Group, Japan BGP connection | 8,192 |
| AS59091 | Kanagawa Institute of Technology | 8,192 |
| AS7521 | INTERNET MULTIFEED CO. | 8,192 |
| AS38043 | Sophia Reserch Institute, Ltd. | 8,192 |
| AS9358 | Kanden Information Systems Company,Incorporated | 8,192 |
| AS23618 | Ibara Broadcasting Company | 8,192 |
| AS23619 | SMARTVALUE Co.,Ltd. | 8,192 |
| AS4672 | IBM Japan, Ltd. | 8,192 |
| AS7665 | Okayama Prefectural Government | 8,192 |
| AS17940 | CYBER LINKS Co.,Ltd. | 8,192 |
| AS17518 | Shiojiri City | 8,192 |
| AS24336 | DIGITALBANK, Inc., Regional ISP in Japan | 8,192 |
| AS4785 | xTom | 7,936 |
| AS23620 | DooGA Co., Ltd. | 7,680 |
| AS9352 | KuMaGaYaNet | 7,424 |
| AS17693 | YAMATO SYSTEM DEVELOPMENT CO., LTD. | 7,168 |
| AS23822 | Hagi Cable Network Co., Ltd | 7,168 |
| AS17948 | EditNet, Incorporated | 7,168 |
| AS18264 | Seikei Eizo Network Inc. | 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 |
| AS7517 | ICOMT Inc. | 6,144 |
| AS131923 | Mihara Cable Television Ltd. | 6,144 |
| AS131937 | Joetsu Cable Vision | 6,144 |
| AS17680 | SCSK Corporation | 6,144 |
| AS18088 | Kyuden Infocom Company Inc | 6,144 |
| AS18259 | NTT Communications Corporation | 6,144 |
| AS23613 | New Media Tokushima Co.,ltd. | 6,144 |
| AS23631 | Sofu System, Inc | 6,144 |
| AS23639 | NTT Bizlink, Inc. | 6,144 |
| AS23641 | NS Computer Service Corporation | 6,144 |
| AS23776 | NEC Corporation | 6,144 |
| AS23827 | Azumino Network Community TV | 6,144 |
| AS24289 | Kagawa T.V Broadcast Network Co,.Ltd | 6,144 |
| AS24290 | Heart Network Co.,LTD | 6,144 |
| AS24512 | HAL Internet, Internet Service Provider, Tottori, Japan | 6,144 |
| AS59094 | esu2 Corporation | 6,144 |
| AS9353 | MEDIAWARS co.,ltd. | 6,144 |
| AS135401 | SAP | 5,632 |
| AS7529 | NetIRD Inc. | 5,376 |
| AS7660 | Asia Pacific Advanced Network - Japan | 5,376 |
| AS17937 | NIKKEI ADVANCED SYSTEMS INC. | 5,376 |
| AS37907 | DigiRock, Inc. | 5,120 |
| AS45687 | Minamikyusyu CableTV Net Inc. | 5,120 |
| AS38638 | Ip Core Corporation | 5,120 |
| AS58788 | Chiroro-Net Co.,Ltd. | 5,120 |
| AS24270 | CRC Solutions Corp., | 5,120 |
| AS55376 | KCV communications CO.,LTD. | 5,120 |
| AS38651 | Mixi,Inc. | 5,120 |
| AS37916 | A.T.WORKS,Inc. | 5,120 |
| AS17685 | SQUARE ENIX CO., LTD. | 5,120 |
| AS23614 | Kochi Systems Co., Ltd. | 5,120 |
| AS37914 | Advanced Software Technology and Management Research Institute of KYOTO | 4,608 |
| AS37897 | AXEL NETWORKS, INC. | 4,608 |
| AS55912 | University of Kochi | 4,352 |
| AS132095 | HEWLETT PACKARD-SHINSUNA COLO | 4,352 |
| AS23748 | Cat Networks K.K. | 4,352 |
| AS45672 | Koga Cable TV Co., Ltd. | 4,096 |
| AS18067 | Humeia Corporation | 4,096 |
| AS17934 | National Institute of Information and Communications Technology | 4,096 |
| AS23795 | Fitec Corp. | 4,096 |
| AS18146 | Intec NetCore, Inc. | 4,096 |
| AS23836 | RELATION Co., Ltd. | 4,096 |
| AS17699 | MEDiA K.K. | 4,096 |
| AS9990 | Nippon Information and Communication Corporation | 4,096 |
| AS38633 | Value Core Inc. | 4,096 |
| AS18143 | Mitsubishi Research Institute DCS Co.,Ltd. | 4,096 |
| AS23798 | VR Techno Center,inc | 4,096 |
| AS59102 | GENES Co., Ltd. | 4,096 |
| AS23824 | Future Spirits Co.,Ltd. | 4,096 |
| AS18265 | ZEXIS CORPORATION | 4,096 |
| AS17513 | Kids-way Corporation | 4,096 |
| AS24264 | Kanazawa Institute of Technology | 4,096 |
| AS17953 | BroadBand Security, Inc. | 4,096 |
| AS18074 | First Riding Technology Inc. | 4,096 |
| AS18263 | MEITETSUCOM Co., Ltd. | 4,096 |
| AS45690 | Tokushima Central TV Co.,Inc. | 4,096 |
| AS9363 | FUJITSU KANSAI-CHUBU NET-TECH LIMITED | 4,096 |
| AS7527 | Japan Internet Exchange Co., Ltd. | 4,096 |
| AS37898 | digitiminimi, inc. | 4,096 |
| AS23794 | Club iT Corporation | 4,096 |
| AS55889 | Equinix Jpapan Enterprise K.K. | 4,096 |
| AS18086 | PFU LIMITED | 4,096 |
| AS10016 | Minaminihon Information Processing Center Co Ltd | 4,096 |
| AS23773 | EKZM co.,ltd. | 4,096 |
| AS132119 | BNP Paribas | 4,096 |
| AS23967 | Produce On Demand Inc. Streaming Contents Delivery Service Tokyo | 4,096 |
| AS18141 | HBA | 4,096 |
| AS18140 | Yahoo Japan Corporation | 4,096 |
| AS18289 | AT&T JAPAN KK | 4,096 |
| AS18383 | CAHI Corporation, | 4,096 |
| AS18290 | Mimedia Corporation | 4,096 |
| AS38652 | Ginzado Co.,Ltd. | 4,096 |
| AS59103 | SoftEther Corporation | 3,840 |
| AS133027 | ZenLogic Internet Ltd | 3,840 |
| AS45688 | The University of Tokyo Interfaculty Initiative in Information Studies | 3,584 |
| AS137445 | PF LINK SYSTEMS | 3,584 |
| AS18127 | Ibaraki Prefectural Government | 3,584 |
| AS59117 | RBNET Co.,Ltd. | 3,584 |
| AS45680 | DOVA Corporation | 3,328 |
| AS45846 | Shiga area POP AS Number | 3,072 |
| AS55902 | TS-NET of TOSET, Inc. in Japan | 3,072 |
| AS18211 | Nomura India Services Pvt Ltd | 3,072 |
| AS58653 | UD Trucks Corporation, Volvo Information Technology Japan | 3,072 |
| AS58791 | GMO Internet,Inc | 3,072 |
| AS23616 | Hitachi Information Systems, Ltd. | 3,072 |
| AS59116 | American International Group KK | 3,072 |
| AS37915 | Wakayama Prefectural Government | 3,072 |
| AS2515 | Japan Network Information Center | 3,072 |
| AS23828 | Misaki Town | 3,072 |
| AS55898 | Yahoo Japan Corporation | 2,560 |
| AS55569 | Criteo APAC | 2,560 |
| AS59118 | NRI SecureTechnologies, Ltd. | 2,560 |
| AS37900 | NTT Communications Corporation | 2,560 |
| AS38627 | Baidu, Inc. | 2,560 |
| AS37891 | JR TOKAI Information Systems Company | 2,560 |
| AS136407 | Virtustream Cloud Services Australia Pty Limited | 2,560 |
| AS131914 | datadockInc. | 2,304 |
| AS131936 | UNIVERSAL MUSIC LLC | 2,304 |
| AS24229 | IX-layers, Inc. | 2,304 |
| AS18072 | NTT Communications, Corp. | 2,304 |
| AS45682 | Excite Japan Co., Ltd. | 2,304 |
| AS24121 | Equinix Asia Pacific | 2,304 |
| AS24288 | Accutechs Co., Ltd. | 2,048 |
| AS131929 | Yamanashi CATV Co,. ltd | 2,048 |
| AS24286 | Weathernews,Inc. | 2,048 |
| AS18272 | Benesse InfoShell Co.,Ltd | 2,048 |
| AS7530 | BroadBand Tower, Inc. | 2,048 |
| AS55393 | Midokura Japan K.K. | 2,048 |
| AS59123 | Kakaku.com, Inc. | 2,048 |
| AS24250 | Miyagin Computer Service Co.,ltd | 2,048 |
| AS24262 | HAMANASU INFORMATION Co., Ltd. | 2,048 |
| AS59095 | ACCELIA | 2,048 |
| AS18090 | IMS Corporation | 2,048 |
| AS55383 | YYY Group, Inc. | 2,048 |
| AS63775 | YAKAGE CABLE TELEVISION | 2,048 |
| AS58784 | Rissho University | 2,048 |
| AS38642 | Yoshizou XYZ Solutions | 2,048 |
| AS131907 | Iwami Cablevision Co.,Ltd. | 2,048 |
| AS59101 | mirai-bs corporation | 2,048 |
| AS23799 | National Defense Academy | 2,048 |
| AS24253 | J-Stream Inc. | 2,048 |
| AS24265 | NTT Communications Corporation | 2,048 |
| AS131928 | Tottori Teletopia Co., Ltd. | 2,048 |
| AS23633 | Niigata Communication Service | 2,048 |
| AS59129 | LogicLinks, Inc. | 2,048 |
| AS18076 | Institute of Advanced Media Arts and Sciences | 2,048 |
| AS37912 | IPRIO Corporation. | 2,048 |
| AS38643 | UNIADEX, LTD. | 1,792 |
| AS4697 | NTT PF Labs | 1,792 |
| AS37889 | J-PARC Center | 1,792 |
| AS24280 | Hitachi Systems, Ltd. | 1,536 |
| AS18139 | Hitachi Solutions, Ltd. | 1,536 |
| AS38636 | DeNA, Co. Ltd. | 1,536 |
| AS18123 | INAOKI EDUCATIONAL INSTITUTION | 1,536 |
| AS132504 | QUALITIA Co.,Ltd | 1,536 |
| AS136506 | LEON CO.LTD | 1,536 |
| AS134396 | AusRegistry Anycast system | 1,536 |
| AS131909 | Okinawa Data Center | 1,536 |
| AS4710 | NTT | 1,536 |
| AS58648 | AT-I, Inc. | 1,280 |
| AS131904 | Cyber Feel Inc. | 1,280 |
| AS136574 | Zheye Networks | 1,280 |
| AS131912 | Cybozu,Inc. | 1,280 |
| AS131941 | Entsu Co.,Ltd. | 1,280 |
| AS137001 | OSOA Co.,LTD. | 1,280 |
| AS38629 | NTT Communications Corporation | 1,280 |
| AS7674 | NTT Communications Corporation | 1,280 |
| AS7667 | KDDI R&D Laboratories, INC. | 1,280 |
| AS133203 | SBI BITS Co., Ltd. | 1,280 |
| AS55896 | Videx Inc. | 1,024 |
| AS55382 | Nagato city office | 1,024 |
| AS131942 | Gurunavi, Inc. | 1,024 |
| AS55894 | Who's Next | 1,024 |
| AS59122 | Ranger-Systems Co., Ltd. | 1,024 |
| AS131939 | IPS INC | 1,024 |
| AS136178 | FIL Japan Holdings K.K. | 1,024 |
| AS55891 | WATCH TOWER BIBLE AND TRACT SOCIETY | 1,024 |
| AS55890 | Suntory Business Expert Limited | 1,024 |
| AS55378 | QUICK Corp. | 1,024 |
| AS131160 | Wire and Wireless Co.,Ltd. | 1,024 |
| AS58645 | Miyagi Cable TV Co.,Ltd | 1,024 |
| AS131901 | FIDESSA KK | 1,024 |
| AS137912 | Global Broadband K.K | 1,024 |
| AS24263 | HONDA MOTOR Co., Ltd. | 1,024 |
| AS23885 | Oracle Corporation | 1,024 |
| AS54415 | WIZ TECHNOLOGIES | 1,024 |
| AS59110 | BPS Inc. | 1,024 |
| AS55901 | Sony Computer Entertainment Inc | 1,024 |
| AS7500 | WIDE Project | 1,024 |
| AS4718 | Cyber Kansai Project | 1,024 |
| AS24477 | Network Appliance ASIAPAC | 1,024 |
| AS131905 | Japan Registry Services Co., Ltd. | 1,024 |
| AS63774 | Kamoike.net LLP | 1,024 |
| AS18091 | Teikyo University | 1,024 |
| AS45676 | SBI TradeWinTech Co.,Ltd. | 1,024 |
| AS18149 | Japan Registry Service Co., Ltd. | 1,024 |
| AS63771 | Border Gateway Protocol Network Analysis Project | 1,024 |
| AS58654 | BLESS Co.,Ltd. | 1,024 |
| AS59093 | IMABARI CATV CORPORATION | 1,024 |
| AS38648 | F-REGI Co.,Ltd. | 1,024 |
| AS59099 | BroadBand Tower, Inc. | 1,024 |
| AS59097 | Okinawa Cross Head Co., Ltd. | 1,024 |
| AS138033 | BBIX, Inc | 1,024 |
| AS63776 | Mercari, Inc. | 1,024 |
| AS58789 | DUNAMIS Co.,Ltd | 1,024 |
| AS133476 | First Innovation K.K. | 1,024 |
| AS131896 | SSI Lab Inc. | 1,024 |
| AS23826 | Daido University | 1,024 |
| AS131910 | SORACOM. INC. | 1,024 |
| AS58792 | WirelessGate, Inc. | 1,024 |
| AS59105 | Home NOC Operators Group | 1,024 |
| AS4774 | A-Bone by Internet Initiative Japan Inc. | 1,024 |
| AS37893 | TradeWeb Europe Limited | 768 |
| AS136769 | WingTecJapan G.K | 768 |
| AS55905 | TOP CLOUD Inc. | 768 |
| AS37888 | HORIBA, Ltd. | 768 |
| AS10209 | Japan HUB and Data Center | 768 |
| AS38033 | internet content provider | 768 |
| AS24283 | MIEDEN SYSTEM SOLUTION .LTD | 768 |
| AS206689 | Beeks Financial Cloud Ltd | 768 |
| AS4717 | WIDE Project | 512 |
| AS137462 | Rakuten Communications K.K. | 512 |
| AS136779 | Schneider Electric Japan Ltd | 512 |
| AS55396 | NRI SecureTechnologies, Ltd | 512 |
| AS55873 | Shiodome City Center 15F | 512 |
| AS55895 | N.S.Computer Service Co.,Ltd. | 512 |
| AS55907 | GMO Internet,Inc | 512 |
| AS133782 | Elsevier Ltd | 512 |
| AS59120 | Tsukuba Internet Service Corporation | 512 |
| AS38658 | LIQUIDNET ASIA LIMITED | 512 |
| AS24257 | Japan Internet Exchange Co., Ltd. | 512 |
| AS63917 | 7-1, Udagawacho, | 512 |
| AS132451 | 2142-1;KUKIOKA;MAEDA; | 512 |
| AS45139 | Microsoft Corp | 512 |
| AS24260 | Board of trusty: Kinjo-Gakuen | 512 |
| AS131940 | Nissho Electronics Corp. | 512 |
| AS7661 | Network Organization for Research and Technologyin Hokkaido | 512 |
| AS45691 | Elliott Advisors Asia Limited | 512 |
| AS131920 | WirelessGate, Inc. | 512 |
| AS33417 | ACCUTEC | 512 |
| AS131158 | Nara Institute of Science and Technology, National University Corporation | 512 |
| AS131155 | NTT Communications Corporation | 512 |
| AS24291 | MITSUI & CO., LTD. | 512 |
| AS131895 | Okinawa Institute of science and technology | 256 |
| AS23929 | Ubiquitous Corp. Data Center Network. | 256 |
| AS131903 | Nomura Research Institute,Ltd. | 256 |
| AS24274 | Actelion Pharmaceuticals Japan Ltd. | 256 |
| AS23634 | WIDE Project | 256 |
| AS23940 | THOMSON FINANCIAL. Financial Content provider.Tokyo | 256 |
| AS37905 | Brastel Co.,Ltd | 256 |
| AS37906 | NetIRD Inc. | 256 |
| AS18284 | Isetan Data Center Co., Ltd. | 256 |
| AS131906 | Gap Japan K.K. | 256 |
| AS23833 | Marusan Securities Co., LTD. | 256 |
| AS131913 | Niigata ken | 256 |
| AS131917 | Toshiba I.S. corp | 256 |
| AS131924 | Kansai Airports | 256 |
| AS45678 | ABN AMRO Clearing Tokyo Co., Ltd. | 256 |
| AS55377 | Sadiatec Co., Ltd | 256 |
| AS45217 | Tora Trading Services Ltd. | 256 |
| AS63773 | Birdie Mobile Inc. | 256 |
| AS24256 | SOFTBANK Corp. | 256 |
| AS59128 | Kyoto University Microcomputer Club | 256 |
| AS131078 | KDDI R&D Laboratories, INC. | 256 |
| AS59124 | KYOTO Prefectural Government | 256 |
| AS59115 | CYBERDYNE Inc. | 256 |
| AS24287 | National Institute of Informatics | 256 |
| AS59113 | RICOH JAPAN Corporation | 256 |
| AS24047 | Internet Systems Consortium, Inc. | 256 |
| AS59111 | Akita International University | 256 |
| AS23642 | OBIS | 256 |
| AS24252 | Japan Registry Service Co., Ltd. | 256 |
| AS133900 | Gilead Sciences, Inc. | 256 |
| AS58786 | GMO Internet,Inc | 256 |
| AS134827 | EY Business Initiative Co., Ltd | 256 |
| AS4777 | Asia Pacific Network Information Centre | 256 |
| AS58651 | GMO Internet,Inc | 256 |
| AS135304 | VMWare Incorporation | 256 |
| AS58649 | GMO Internet,Inc | 256 |
| AS9935 | AGNS Customer AS | 256 |
| AS55949 | Technopro Holdings | 256 |
| AS55909 | Kochi National College of Technology | 256 |
| AS55373 | Foundation for Biomedical Research and Innovation | 256 |
| AS55908 | Nomura Research Institute,Ltd. | 256 |
| AS23774 | Japan Registry Service Co., Ltd. | 256 |
| AS136796 | CORELINK JAPAN | 256 |
| AS23761 | Xpedite Systems | 256 |
| AS137008 | 1120 Shimokuzawa Chuo-ku Sagamihara-shi Kanagawa-ken | 256 |
| AS137819 | Beeks Financial Cloud (Japan) | 256 |
| AS131894 | UNIADEX, LTD. | 256 |
| AS9361 | APNIC ASN block | 0 |
| AS9362 | APNIC ASN block | 0 |
| AS9364 | APNIC ASN block | 0 |
| AS9368 | APNIC ASN block | 0 |
| AS9369 | APNIC ASN block | 0 |
| AS131157 | IMS Corporation | 0 |
| AS9373 | APNIC ASN block | 0 |
| AS131154 | NANO OPT Media, Inc. | 0 |
| AS9376 | SMARTVALUE Co.,Ltd. | 0 |
| AS131153 | KVH Co., Ltd. | 0 |
| AS9379 | APNIC ASN block | 0 |
| AS9380 | Community Network Center Inc. | 0 |
| AS131152 | BBIX,Inc. | 0 |
| AS131106 | AS for DATAHOTEL, which is one of iDC in Japan, | 0 |
| AS9592 | SOFTBANK TELECOM Corp. | 0 |
| AS131086 | Densan Co., Ltd. | 0 |
| AS131085 | Niigata Communication Service | 0 |
| AS131084 | MKI Network Solutions, Ltd. | 0 |
| AS9598 | NTT Communications Corporation | 0 |
| AS9599 | EJWORKS CORPORATION | 0 |
| AS131082 | Japan Internet Exchange Co., Ltd. | 0 |
| AS131081 | Intec NetCore, Inc. | 0 |
| AS9602 | APNIC ASN block | 0 |
| AS9603 | APNIC ASN block | 0 |
| AS131080 | SAKURA Internet Inc. | 0 |
| AS131079 | INTERNET MULTIFEED CO. | 0 |
| AS9606 | Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency | 0 |
| AS9608 | APNIC ASN block | 0 |
| AS9609 | Ymobile Corporation | 0 |
| AS9610 | APNIC ASN block | 0 |
| AS9611 | APNIC ASN block | 0 |
| AS9613 | APNIC ASN block | 0 |
| AS131075 | Nippon Telegraph and Telephone Corporation PF Labs., | 0 |
| AS131074 | APNIC R&D Centre JP | 0 |
| AS9616 | WIDE Project | 0 |
| AS131073 | Pacnet Global Ltd. | 0 |
| AS1233 | National Space Development Agency | 0 |
| AS10807 | Hitachi Business International, Ltd. | 0 |
| AS9620 | APNIC ASN block | 0 |
| AS10124 | Amazon Data Services Japan KK | 0 |
| AS10033 | iBasis Tokyo ICO | 0 |
| AS10018 | APNIC ASN block | 0 |
| AS9992 | APNIC ASN block | 0 |
| AS10017 | APNIC ASN block | 0 |
| AS23787 | APNIC ASN block | 0 |
| AS23643 | APNIC ASN block | 0 |
| AS23792 | APNIC ASN block | 0 |
| AS23640 | BBIX,Inc. | 0 |
| AS23638 | AMIXCOM Inc. | 0 |
| AS23797 | IXO | 0 |
| AS23800 | Fukui National College of Technology | 0 |
| AS23801 | NTT Communications | 0 |
| AS23803 | The University of Tokyo | 0 |
| AS23636 | APNIC ASN block | 0 |
| AS23806 | Chupicom Hiroshima Corp. | 0 |
| AS23630 | CAC Inc. | 0 |
| AS23809 | Televi Naruto .CO.,LTD | 0 |
| AS23810 | IC-NET Corporation | 0 |
| AS23812 | APNIC ASN block | 0 |
| AS23813 | SORUN Corporation | 0 |
| AS23814 | WIDE Project | 0 |
| AS23815 | Japan Internet Exchange Co., Ltd. | 0 |
| AS23626 | APNIC ASN block | 0 |
| AS23625 | TOKAI Communications Corporation | 0 |
| AS23622 | Tsuru Gakuen | 0 |
| AS23819 | APNIC ASN block | 0 |
| AS23621 | APNIC ASN block | 0 |
| AS9994 | APNIC ASN block | 0 |
| AS23830 | Gaitame.com Co.,Ltd. | 0 |
| AS23831 | NISIOWARI CATV CORPORATION | 0 |
| AS23835 | APNIC ASN block | 0 |
| AS23926 | JP DC | 0 |
| AS24056 | Internet Data Centre | 0 |
| AS24062 | Kari Network Inc. | 0 |
| AS24114 | Equinix Asia Pacific | 0 |
| AS23612 | APNIC ASN block | 0 |
| AS24258 | APNIC ASN block | 0 |
| AS18288 | APNIC ASN block | 0 |
| AS18286 | Osaka City University | 0 |
| AS24266 | APNIC ASN block | 0 |
| AS18285 | APNIC ASN block | 0 |
| AS24269 | APNIC ASN block | 0 |
| AS18280 | APNIC ASN block | 0 |
| AS18279 | Bukkyo University | 0 |
| AS18277 | Kurashiki University of Science and the Arts | 0 |
| AS18270 | Toin University of Yokohama | 0 |
| AS18269 | Kai Creates Inc. | 0 |
| AS24281 | APNIC ASN block | 0 |
| AS24285 | APNIC ASN block | 0 |
| AS9995 | FirstServer, Inc. | 0 |
| AS9996 | KDDI Corporation | 0 |
| AS24292 | NS Solutions Corporation | 0 |
| AS24293 | FUJITSU SYSTEMS WEST LIMITED | 0 |
| AS24294 | APNIC ASN block | 0 |
| AS18262 | APNIC ASN block | 0 |
| AS18151 | COMPUTER ENGINEERING & CONSULTING LTD. | 0 |
| AS2498 | JPNIC-2Byte-ASBLOCK-AP | 0 |
| AS2499 | Japan Network Information Center | 0 |
| AS2502 | The University of Tokyo | 0 |
| AS18138 | SAKURA Internet Inc. | 0 |
| AS18131 | NTT Communications Corporation Innovative IP Architecture Center | 0 |
| AS2507 | JPNIC-2Byte-ASBLOCK-AP | 0 |
| AS18130 | APNIC ASN block | 0 |
| AS18122 | Advanced Software Technology & Management Research Institute of KYOTO | 0 |
| AS18096 | APNIC ASN block | 0 |
| AS18095 | Reitaku University | 0 |
| AS18093 | APNIC ASN block | 0 |
| AS2517 | JPNIC-2Byte-ASBLOCK-AP | 0 |
| AS2521 | Yahoo Japan Corporation | 0 |
| AS18089 | KDDI Corporation | 0 |
| AS2524 | EJWORKS CORPORATION | 0 |
| AS2525 | JPNIC-2Byte-ASBLOCK-AP | 0 |
| AS18084 | Pacnet JP | 0 |
| AS18080 | Sopiafons Co.,Ltd | 0 |
| AS2528 | JPNIC-2Byte-ASBLOCK-AP | 0 |
| AS18078 | APNIC ASN block | 0 |
| AS2713 | AT&T Jens Corporation | 0 |
| AS2915 | AT&T Jens Corporation | 0 |
| AS3391 | ASCIInet Corporation | 0 |
| AS3510 | Real World Computing Partnership | 0 |
| AS3775 | Global Network Solutions, IBM Japan, Ltd. | 0 |
| AS37894 | JPNIC-2Byte-ASBLOCK-AP | 0 |
| AS37895 | Ryukoku University | 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 |
| AS17977 | SINGTEL-JP | 0 |
| AS37909 | Wakkanai Hokusei Gakuen University | 0 |
| AS37911 | JPNIC-2Byte-ASBLOCK-AP | 0 |
| AS17952 | APNIC ASN block | 0 |
| AS17949 | Tokyo University of Technorogy | 0 |
| AS17945 | iTV Co,Ltd | 0 |
| AS37920 | Shiga University | 0 |
| AS37921 | JPNIC-2Byte-ASBLOCK-AP | 0 |
| AS17943 | Tokyo Denki University | 0 |
| AS37923 | NTT Communications Corporation | 0 |
| AS37924 | Ministry of Land, Infrastructure and Transport Kinki Regional Development Bureau | 0 |
| AS37925 | USEN CORPORATION | 0 |
| AS37926 | JPNIC-2Byte-ASBLOCK-AP | 0 |
| AS37927 | Nomura Researth Institute, Ltd. | 0 |
| AS37984 | Chikushi Jogakuen University, Non-transit AS. | 0 |
| AS17938 | SOFTBANK TELECOM Corp. | 0 |
| AS38080 | Foresightwave INC. | 0 |
| AS38610 | APNIC R&D Centre JP | 0 |
| AS17935 | APNIC ASN block | 0 |
| AS38632 | cross-connect niigata co.,ltd. | 0 |
| AS17933 | Nippon Telegraph and Telephone East Corporation | 0 |
| AS17930 | APNIC ASN block | 0 |
| AS38637 | APNIC ASN block | 0 |
| AS17795 | Netvein.co.jp | 0 |
| AS38640 | SAKURA Internet Inc. | 0 |
| AS17704 | APNIC ASN block | 0 |
| AS38644 | INTERNET MULTIFEED CO. | 0 |
| AS38645 | NTT Communications Corporation | 0 |
| AS38649 | APNIC ASN block | 0 |
| AS38653 | Japan Post Holdings Co., Ltd. | 0 |
| AS17700 | APNIC ASN block | 0 |
| AS38655 | SaiNet Corporation | 0 |
| AS17697 | NTT PC Communications, Inc. | 0 |
| AS38910 | Transit AS Tokyo | 0 |
| AS4197 | Yahoo Japan Corporation | 0 |
| AS4251 | TWICS Co. Ltd. | 0 |
| AS45436 | Green Net Co., Ltd. | 0 |
| AS17695 | MLJS | 0 |
| AS45674 | BIGLOBE Inc. | 0 |
| AS17692 | Kyocera Communication Systems Co., Ltd. | 0 |
| AS17690 | APNIC ASN block | 0 |
| AS45679 | Tatsumi, Tomo | 0 |
| AS45685 | Rikkyo Gakuin Rikkyo University | 0 |
| AS45686 | INTERNET MULTIFEED CO. | 0 |
| AS45689 | Convivial Net | 0 |
| AS17679 | APNIC ASN block | 0 |
| AS17674 | APNIC ASN block | 0 |
| AS4674 | APNIC ASN block | 0 |
| AS17532 | Tokyo Polytechnic University | 0 |
| AS4676 | APNIC ASN block | 0 |
| AS17528 | APNIC ASN block | 0 |
| AS17527 | CHITA MEDIAS NETWORK INC. | 0 |
| AS17525 | APNIC ASN block | 0 |
| AS4681 | Yahoo Japan Corporation | 0 |
| AS4682 | SoftBank Mobile Corp. | 0 |
| AS4683 | Phase One, Inc. | 0 |
| AS4684 | NTT PC Communications, Inc. | 0 |
| AS17524 | DS Networks | 0 |
| AS17522 | NIPPON TELEGRAPH AND TELEPHONE WEST CORPORATION | 0 |
| AS4688 | Internet Initiative Japan Inc. | 0 |
| AS4689 | APNIC ASN block | 0 |
| AS4690 | WIDE Project | 0 |
| AS4691 | Dream Train Internet Inc. | 0 |
| AS4692 | InternetWare Co., LTD. | 0 |
| AS17521 | Kochi University of Technology | 0 |
| AS17520 | APNIC ASN block | 0 |
| AS17517 | APNIC ASN block | 0 |
| AS4696 | APNIC ASN block | 0 |
| AS4698 | InterLink Co., Ltd. | 0 |
| AS4699 | APNIC ASN block | 0 |
| AS4700 | Niji-Net Inc. | 0 |
| AS4701 | APNIC ASN block | 0 |
| AS4705 | APNIC ASN block | 0 |
| AS4706 | APNIC ASN block | 0 |
| AS4707 | APNIC ASN block | 0 |
| AS4708 | Nippon Internet Access Inc. | 0 |
| AS4709 | NetLaputa Corporation | 0 |
| AS138467 | Yahagi Network Solutions | 0 |
| AS4712 | JAPAN TOBACCO INC. | 0 |
| AS138384 | Rakuten Mobile Network, Inc. | 0 |
| AS4716 | KDDI CORPORATION | 0 |
| AS138328 | Skadden, Arps, Slate, Meagher & Flom LLP | 0 |
| AS4720 | APNIC ASN block | 0 |
| AS138190 | Aurura Solutions LTD | 0 |
| AS4722 | SoftBank Corp. | 0 |
| AS138181 | Hu's Tech LLC | 0 |
| AS4724 | APNIC ASN block | 0 |
| AS138157 | TP Networks, LLC | 0 |
| AS4727 | KYODO PRINTING BUSINESS SOLUTIONS CO.,LTD | 0 |
| AS4728 | APNIC ASN block | 0 |
| AS138038 | Wolf Network Lab | 0 |
| AS4732 | KDDI CORPORATION | 0 |
| AS4733 | APNIC ASN block | 0 |
| AS138030 | NET-NAVICE | 0 |
| AS55372 | University of the Ryukyus | 0 |
| AS55375 | SmartInsight Inc. | 0 |
| AS137875 | ShedDC | 0 |
| AS137508 | Oriental Star Network Limited | 0 |
| AS137407 | EIC INC | 0 |
| AS55389 | Japan Network Enabler Corporation | 0 |
| AS55748 | 7-9-10 Nishi-Shinjuku | 0 |
| AS55817 | Nippon Telegraph and Telephone Corporation PF Labs | 0 |
| AS55893 | NTT DATA CORPORATION | 0 |
| AS55897 | SAKURA Internet Inc. | 0 |
| AS55903 | Tokyo Stock Exchange, Inc. | 0 |
| AS55906 | Ustream Asia, Inc. | 0 |
| AS56021 | NetResource corporation | 0 |
| AS56023 | SmartRams Co., Ltd. | 0 |
| AS56024 | Biz-front Inc | 0 |
| AS56025 | AMY INC | 0 |
| AS56029 | CELL INC. | 0 |
| AS56033 | Rakushasu Inc | 0 |
| AS56218 | QGPOP | 0 |
| AS58535 | MarketPrizm BV | 0 |
| AS58646 | FreeBit Co.,Ltd. | 0 |
| AS134606 | Satori Networks | 0 |
| AS134532 | ATT NBE Equinix Tokyo | 0 |
| AS10007 | SoftBank Mobile Corp. | 0 |
| AS133869 | SalesForce.com, Inc. | 0 |
| AS59100 | Kochi Gakuen College | 0 |
| AS133795 | Choopa, LLC | 0 |
| AS59106 | SKYLINKS INC. | 0 |
| AS59112 | Plus One marketing Ltd. | 0 |
| AS59114 | Recruit Holdings Co.,Ltd. | 0 |
| AS59119 | HIDATAKAYAMA CABLE NETWORK INC. | 0 |
| AS132888 | Freak | 0 |
| AS132833 | Research Management Ltd. | 0 |
| AS132592 | Star Co,.Ltd. | 0 |
| AS59130 | NTT Communications Corperation | 0 |
| AS63524 | Equinix Asia Pacific | 0 |
| AS132496 | SBI BITS Co., Ltd. | 0 |
| AS63978 | CJL-JP | 0 |
| AS7488 | Yahoo Japan Corporation | 0 |
| AS7501 | APNIC ASN block | 0 |
| AS132373 | ASIAN-WEB-JP | 0 |
| AS132211 | FX Corporate LLC | 0 |
| AS132120 | Internet Systems Consortium | 0 |
| AS7508 | APNIC ASN block | 0 |
| AS7509 | Hokkaido University | 0 |
| AS7512 | WITH Network | 0 |
| AS7513 | Hitachi Systems, Ltd. | 0 |
| AS132024 | Rebyc Inc. | 0 |
| AS7515 | NTT Communications Corporation | 0 |
| AS131943 | Goto tv | 0 |
| AS7518 | APNIC ASN block | 0 |
| AS7519 | APNIC ASN block | 0 |
| AS7520 | APNIC ASN block | 0 |
| AS7525 | APNIC ASN block | 0 |
| AS7526 | Mitsubishi Electric Information Network Corporation | 0 |
| AS7531 | GenomeNet Project | 0 |
| AS7662 | APNIC ASN block | 0 |
| AS131935 | Kamoike.net LLP | 0 |
| AS7666 | Mitsubishi Corporation | 0 |
| AS7669 | DIGITAL TECHNOLOGIES CORPORATION | 0 |
| AS7673 | ejworks corporation | 0 |
| AS7680 | APNIC ASN block | 0 |
| AS7681 | APNIC ASN block | 0 |
| AS131908 | INTEC Inc. | 0 |
| AS7683 | trunk inc. | 0 |
| AS7685 | APNIC ASN block | 0 |
| AS7688 | Nippon Internet Access Inc. | 0 |
| AS7689 | APNIC ASN block | 0 |
| AS7691 | APNIC ASN block | 0 |
| AS9222 | Intel Online Services Asia | 0 |
| AS9225 | Telstra Global - KK | 0 |
| AS9349 | APNIC ASN block | 0 |
| AS9350 | APNIC ASN block | 0 |
| AS10005 | APNIC ASN block | 0 |
| AS131900 | Directorz Co.,Ltd. | 0 |
| AS131898 | Yahoo Japan Corporation | 0 |
| AS9356 | APNIC ASN block | 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.