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 | 28,904,704 |
| AS2516 | KDDI CORPORATION | 18,767,360 |
| AS2907 | Research Organization of Information and Systems, National Institute of Informatics | 8,506,048 |
| AS17506 | UCOM Corp. | 5,382,144 |
| AS9824 | Jupiter Telecommunication Co. Ltd | 4,745,216 |
| AS2497 | Internet Initiative Japan Inc. | 3,802,368 |
| AS2518 | BIGLOBE Inc. | 3,674,112 |
| AS38895 | Amazon.com Tech Telecom | 3,372,544 |
| AS2510 | FUJITSU LIMITED | 3,220,224 |
| AS2527 | So-net Entertainment Corporation | 3,177,472 |
| AS17511 | K-Opticom Corporation | 3,128,064 |
| AS9605 | NTT DOCOMO, INC. | 2,324,224 |
| AS4725 | SoftBank Mobile Corp. | 2,242,048 |
| AS10013 | FreeBit Co.,Ltd. | 2,033,408 |
| AS2514 | NTT PC Communications, Inc. | 1,872,384 |
| AS9595 | NTT-ME Corporation | 1,644,544 |
| AS2519 | ARTERIA Networks Corporation | 1,582,080 |
| AS37903 | Ymobile Corporation | 1,491,968 |
| AS10010 | TOKAI Communications Corporation | 1,455,104 |
| AS18126 | Chubu Telecommunications Company, Inc. | 1,304,576 |
| 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 Project | 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 |
| AS18144 | Energia Communications,Inc. | 209,920 |
| AS10021 | KVH Co.,Ltd | 208,896 |
| AS9354 | Community Network Center Inc. | 208,384 |
| AS10026 | Pacnet Global Ltd | 202,752 |
| AS2501 | The University of Tokyo | 200,704 |
| AS23793 | National Institute of Advanced Industrial Science and Technology | 199,936 |
| AS7514 | Computer Engineering & Consulting, Ltd. | 195,584 |
| AS7687 | TOYOTA DIGITAL CRUISE.INCORPORATED | 194,560 |
| AS4686 | BEKKOAME INTERNET INC. | 181,248 |
| 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 |
| AS38635 | Keio University | 131,072 |
| AS24297 | Osaka Prefecture University | 131,072 |
| AS4729 | Japan Atomic Energy Agency | 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 |
| AS18097 | D.C.N. Corporation | 91,648 |
| AS9993 | ITOCHU Techno-Solutions Corporation | 91,136 |
| AS24282 | KAGOYA JAPAN Inc. | 89,344 |
| 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 |
| AS17509 | STARNET Co.,Ltd. | 71,680 |
| AS17673 | MITSUI KNOWLEDGE INDUSTRY CO., LTD. | 71,680 |
| AS9615 | TOYOHASHI CABLE NETWORK INC. | 71,680 |
| AS24276 | Jupiter Telecommunications Co., Ltd. | 69,632 |
| AS23820 | Rakuten,Inc. | 69,632 |
| AS18082 | Japan Agency for Local Authority Information Systems | 69,632 |
| AS17947 | SAKURA KCS Corporation. | 69,632 |
| AS10000 | Nagasaki Cable Media Inc. | 69,632 |
| AS18271 | Sojitz Systems Corporation | 69,632 |
| AS37918 | Nippon Telegraph and Telephone Corporation | 69,376 |
| AS38628 | HIMEJI CABLE TELEVISION CORPORATION | 68,608 |
| AS55391 | INTERNET MULTIFEED CO. | 68,608 |
| AS131921 | GMO CLOUD K.K. | 68,352 |
| AS23720 | Rakuten Communications K.K. | 68,096 |
| AS55390 | Tokyo University of Science | 67,584 |
| AS23816 | Yahoo Japan Corporation | 67,584 |
| AS4730 | Osaka University | 67,584 |
| AS2526 | E-Platform Promotion Office. IT Services Division. HITACHI,Ltd. | 67,584 |
| AS17961 | mitene internet co., ltd. | 67,584 |
| AS24261 | Mie University | 66,304 |
| AS37920 | Shiga University | 66,048 |
| AS2513 | Japan Science and Technology Agency | 65,792 |
| AS17944 | Japan Weather Association | 65,792 |
| AS17932 | Japan Advanced Institute of Science and Technology | 65,792 |
| AS17960 | University of the Ryukyus | 65,536 |
| AS9991 | Hiroshima Shudo University | 65,536 |
| AS10014 | Nihon University | 65,536 |
| AS9593 | Nikkei Inc. | 65,536 |
| AS9591 | National Institute for Fusion Science | 65,536 |
| AS9367 | Tokyo Institute of Technology | 65,536 |
| AS9366 | SOLITON-NET | 65,536 |
| AS9357 | NRI SecureTechnologies, Ltd. | 65,536 |
| AS9355 | National Institute of Information and Communications Technology | 65,536 |
| AS131159 | Yamagata University | 65,536 |
| AS131897 | National University Corporation ,Ehime University | 65,536 |
| AS59104 | Soka University | 65,536 |
| AS58652 | Kochi University | 65,536 |
| AS58785 | Tohoku Gakuin University | 65,536 |
| AS55904 | KOGAKUIN University | 65,536 |
| AS131919 | Meiji University | 65,536 |
| AS55380 | Kanazawa University | 65,536 |
| AS55379 | Hosei University | 65,536 |
| AS4677 | Marubeni OKI Network Solutions Inc. | 65,536 |
| AS45673 | Osaka Electro-Communication University | 65,536 |
| AS38654 | INES Corporation. | 65,536 |
| AS38641 | Osaka Sangyo University | 65,536 |
| AS37919 | SEGA Holdings Co., Ltd. | 65,536 |
| AS37910 | Chubu University | 65,536 |
| AS2508 | Kyushu University | 65,536 |
| AS17510 | INFORMATION SERVICES INTERNATIONAL - DENTSU, LTD. | 65,536 |
| AS17512 | Japan Airlines International Co., Ltd. | 65,536 |
| AS24275 | TOTO LTD. | 65,536 |
| AS24273 | CANON INC. | 65,536 |
| AS24268 | National University Corporation Shizuoka University | 65,536 |
| AS17523 | Aoyama Gakuin University | 65,536 |
| AS24248 | Wakayama University | 65,536 |
| AS23807 | Ritsumeikan University | 65,536 |
| AS23623 | Chuo University | 65,536 |
| AS23615 | University of Shizuoka | 65,536 |
| AS24254 | Kyoto Sangyo University | 65,536 |
| AS23779 | NTT Communications Corporation | 65,536 |
| AS18276 | Kansai University | 65,536 |
| AS18268 | Naganoken Kyodou Densan Co.Ltd. | 65,536 |
| AS17701 | Seinan Gakuin University | 65,536 |
| AS18148 | Fukuoka 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 |
| AS18087 | Toyo University | 65,536 |
| AS18069 | SOFTBANK TECHNOLOGY CORP. | 65,536 |
| AS17946 | Gifu University | 65,536 |
| AS17956 | WASEDA 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. | 58,624 |
| AS4723 | Dolphin | 57,344 |
| AS59127 | Newmedia Corporation | 55,296 |
| AS24295 | Internap Japan Co.,Ltd. | 52,224 |
| AS9622 | Kurashiki Cable TV | 51,200 |
| AS4680 | Mitsubishi Electric Information Network Corporation | 49,664 |
| AS55387 | Japan Communication Inc. | 49,152 |
| AS17675 | Internap Japan Co.,LTD. | 49,152 |
| AS37892 | Cable Media WAIWAI Co.,Ltd. | 49,152 |
| AS24296 | Yahoo Japan Corporation | 49,152 |
| AS18278 | Cable TV Corporation | 47,104 |
| AS18282 | TONAMI Internet Service(TONAMI TransportationCo.,Ltd.) | 46,592 |
| AS23785 | SUN FIELD INTERNET LIMITED | 45,056 |
| AS18092 | Kyushu Tele Communications Company | 45,056 |
| AS4693 | CSK-IT MANAGEMENT CORPORATION | 45,056 |
| AS23637 | Equinix Jpapan Enterprise K.K. | 45,056 |
| AS9378 | Jupiter Telecommunications Co., Ltd. | 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 |
| AS10003 | Ogaki Cable Television Co.,Inc. | 36,864 |
| AS10001 | Mics Network Corporation | 36,864 |
| AS9998 | ISAO Corporation | 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 |
| AS59092 | kronos.Co.,Ltd. | 33,536 |
| AS59121 | Asahi Kasei Networks Corporation | 33,024 |
| AS58793 | NIFTY Corporation | 33,024 |
| AS18150 | Sagashimbun Co., Ltd. | 32,768 |
| AS10015 | Cyber Wave Japan Co., Ltd. | 30,464 |
| AS18134 | Jupiter Telecommunications Co., Ltd. | 29,696 |
| AS7668 | Hokuriku Telecommunication Network Co. | 29,184 |
| AS9607 | BroadBand Tower, Inc. | 29,184 |
| AS18068 | Dream Wave Shizuoka Co. Ltd. | 29,184 |
| AS23783 | Cable Networks Akita Co.,ltd. | 28,416 |
| AS23629 | Obihiro City Cable Co.,Ltd. | 27,136 |
| AS23624 | Chukai Television Co,.Ltd. | 26,624 |
| AS55394 | GREE, Inc. | 26,624 |
| AS17504 | NRI Netcom, Ltd. | 26,624 |
| AS131927 | TV Matsumoto Cablevision | 26,624 |
| AS24255 | Tannan Cable Television Corporation | 25,600 |
| AS10004 | JIN Office Service Inc. | 25,088 |
| AS9601 | Niigata Communication Service | 24,576 |
| AS10002 | IGAUENO CABLE TELEVISION CO.,LTD | 24,576 |
| AS10012 | Rakuten Communications Corp. | 24,576 |
| AS23788 | Jupiter Telecommunications Co., Ltd. | 24,576 |
| AS23661 | CLARA ONLINE, Inc. | 24,576 |
| AS17950 | SaiNet | 24,576 |
| AS56291 | Ace, Inc. | 24,576 |
| AS18121 | Ishikawa Computer Center Co.,LTD. | 24,064 |
| AS17682 | 296 BROAD NET Com Inc | 23,552 |
| AS24249 | JWAY co., Ltd. | 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 |
| AS18267 | Doshisha University | 20,480 |
| AS24278 | USEN CORPORATION | 20,480 |
| AS45675 | Jupiter Telecommunications Co., Ltd. | 20,480 |
| AS4695 | Energia Communications, Inc. | 20,480 |
| AS9466 | UUNET Japan Limited | 20,264 |
| AS55392 | INTERNET MULTIFEED CO. | 19,456 |
| AS17957 | SOUTH TOKYO CABLETELEVISION | 19,456 |
| AS18283 | Fureai Channel Inc. | 19,456 |
| AS18129 | OKAYAMA NETWORK INC. | 19,456 |
| AS59109 | Hitachi,Ltd., Cloud services Division | 19,456 |
| AS23790 | Jupiter Telecommunications Co., Ltd. | 18,432 |
| AS131915 | Hamamatsu Cable Television .Inc | 18,432 |
| AS131918 | SHONAN CABLE NETWORK | 18,432 |
| AS10011 | advanscope.inc | 18,432 |
| AS24277 | Okinawa Cable Network Inc. | 18,432 |
| AS18274 | Utsunomiya Cable TV Corporation | 18,432 |
| AS131916 | Tokyo Bay Network Co.,Ltd. | 18,432 |
| AS23784 | SQUARE ENIX CO., LTD. | 18,432 |
| AS9997 | Suzuka Cable Co.,Ltd | 17,920 |
| AS17958 | Kasaoka Cable Vision Co,LTD. | 17,408 |
| AS23627 | UEDA CABLE VISION CO.,LTD. | 17,408 |
| AS4711 | INTEC Inc. | 17,408 |
| AS18094 | Tokyo Cable Network.,INC | 17,408 |
| AS63770 | Industrial Cyber Security Center of Excellence | 17,408 |
| AS17524 | DS Networks | 16,896 |
| AS131914 | datadockInc. | 16,896 |
| AS18071 | Panasonic Corporation Corporate Information Systems Company | 16,704 |
| AS7503 | Air Internet Service Co.,Ltd. | 16,384 |
| AS7513 | Hitachi Systems, Ltd. | 16,384 |
| AS17683 | Wingtechnology Communications, Inc. | 16,384 |
| AS55384 | Japan Advanced Institute of Science and Technology | 16,384 |
| AS55910 | Shibaura Institute of Technology | 16,384 |
| AS24271 | Iruma CATV co. | 16,384 |
| AS9618 | catv-tokushima | 16,384 |
| AS18085 | Fujitsu Systems Applications & Support Limited | 16,384 |
| AS23635 | CRCCMedia Co.,ltd | 16,384 |
| AS23780 | CTB Media Inc. | 16,384 |
| AS7505 | Fujitsu Systems Applications & Support Limited | 16,384 |
| AS7523 | RICOH JAPAN Corporation | 15,872 |
| AS23818 | JETINTERNET Corporation | 15,616 |
| AS131899 | DIG Inc. | 15,616 |
| AS23778 | IMIZU CABLE NETWORK CO.,LTD. | 15,360 |
| AS23805 | Watarase Television Co.,Ltd | 14,336 |
| AS17931 | Netforest,Inc. | 14,336 |
| AS17936 | Cable Television Kani Co.,Inc. | 14,336 |
| AS24259 | kanuma cable television Corporation | 14,336 |
| AS23808 | TOSHIMA CABLE NETWORK CO.,LTD | 14,336 |
| AS9604 | FUJI SOFT INCORPORATED | 14,336 |
| AS7677 | Dai Nippon Printing Co., Ltd | 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, Web Hosting Company, Japan | 12,544 |
| AS23632 | TVT Tsuyama Co.,Ltd. | 12,288 |
| AS23817 | Fujitsu Limited. | 12,288 |
| AS18266 | Datacore Works Co.,Ltd. | 12,288 |
| AS18142 | KISTEM Co., Ltd. | 12,288 |
| AS18075 | Chupicom Hiroshima Corp. | 12,288 |
| AS18281 | Tokoname New-TV Corporation | 12,288 |
| AS23628 | Academic newtown Community Cable Service | 12,288 |
| AS55388 | ASJ INC. | 12,288 |
| AS59125 | FAMILY NET JAPAN INCORPORATED | 11,520 |
| AS38639 | NTT Communications Corporation | 11,264 |
| AS23620 | DooGA Co., Ltd. | 11,264 |
| AS131925 | FAMILY NET JAPAN INCORPORATED | 11,264 |
| AS17696 | KDDI Okinawa Srevice CO. | 10,240 |
| AS55385 | Digital Alliance Co.,Ltd. | 10,240 |
| AS131926 | Cable Television Saiki Co. , Ltd. | 10,240 |
| AS59107 | Hachinohe Cable Television Co. | 10,240 |
| AS55381 | CITY-CABLE SHUNAN Corporation | 10,240 |
| AS17689 | Hokuden Information Technology,Inc. | 9,728 |
| AS24284 | CyberAgent, Inc. | 9,728 |
| AS37922 | Cable TV Yamagata Co.,Ltd. | 9,216 |
| AS23775 | Tamashima TV Inc. | 9,216 |
| AS24279 | SENDAI CATV CO.,LTD. | 9,216 |
| AS9621 | Okinawa Telecommunication Network Co.,Inc | 9,216 |
| AS132418 | 1 Rue Royale FR | 9,216 |
| AS7664 | Sanyo Computer Corp.Inc | 9,216 |
| AS45677 | Isahaya Cable Television Co.,Inc. | 9,216 |
| AS132726 | 5-3 Miyuki-cho | 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 transit AS | 8,448 |
| AS7686 | Technology Networks Inc. | 8,192 |
| AS4672 | IBM Japan, Ltd. | 8,192 |
| AS59096 | Meiji Gakuin University | 8,192 |
| AS59091 | Kanagawa Institute of Technology | 8,192 |
| AS23804 | Nonprofit Organization Kitaura Hana Net | 8,192 |
| AS2523 | JSPS 163rd Committee on Internet Technology | 8,192 |
| AS9358 | Kanden Information Systems Company,Incorporated | 8,192 |
| AS7678 | Prox System Design Inc. | 8,192 |
| AS4719 | Onkyo Corporation | 8,192 |
| AS7665 | Okayama Prefectural Government | 8,192 |
| AS7663 | FUJIMIC INC. | 8,192 |
| AS7521 | INTERNET MULTIFEED CO. | 8,192 |
| AS17694 | Deutsche Bank Group, Japan BGP connection | 8,192 |
| AS17518 | Shiojiri City | 8,192 |
| AS38043 | Sophia Reserch Institute, Ltd. | 8,192 |
| AS23619 | SMARTVALUE Co.,Ltd. | 8,192 |
| AS23796 | NTT Service Evolution Laboratories | 8,192 |
| AS17940 | CYBER LINKS Co.,Ltd. | 8,192 |
| AS24336 | DIGITALBANK, Inc., Regional ISP in Japan | 8,192 |
| AS55899 | LEON TECHNOLOGY, Inc. | 8,192 |
| AS17677 | UCOM Corporation | 8,192 |
| AS17661 | NHN Techorus Corp. | 7,680 |
| AS9352 | KuMaGaYaNet | 7,424 |
| AS131900 | Directorz Co.,Ltd. | 7,168 |
| AS17693 | YAMATO SYSTEM DEVELOPMENT CO., LTD. | 7,168 |
| AS17948 | EditNet, Incorporated | 7,168 |
| AS18264 | Seikei Eizo Network Inc. | 7,168 |
| AS23822 | Hagi Cable Network Co., Ltd | 7,168 |
| AS23618 | Ibara Broadcasting Company | 7,168 |
| AS23829 | NTT NEOMEIT YAMAGUCHI CORPORATION | 6,912 |
| AS17505 | SOFTBANK MOBILE Corp. | 6,656 |
| AS38715 | Regional-IX ASN Tottori pref Japan. | 6,400 |
| AS131893 | RICOH Company, Ltd. | 6,400 |
| AS24290 | Heart Network Co.,LTD | 6,144 |
| AS23639 | NTT Bizlink, Inc. | 6,144 |
| AS23776 | NEC Corporation | 6,144 |
| AS24512 | HAL Internet, Internet Service Provider, Tottori, Japan | 6,144 |
| AS23641 | NS Computer Service Corporation | 6,144 |
| AS9353 | MEDIAWARS co.,ltd. | 6,144 |
| AS23631 | Sofu System, Inc | 6,144 |
| AS23613 | New Media Tokushima Co.,ltd. | 6,144 |
| AS23827 | Azumino Network Community TV | 6,144 |
| AS59094 | esu2 Corporation | 6,144 |
| AS18088 | Kyuden Infocom Company Inc | 6,144 |
| AS131923 | Mihara Cable Television Ltd. | 6,144 |
| AS17680 | SCSK Corporation | 6,144 |
| AS7517 | ICOMT Inc. | 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 |
| AS24289 | Kagawa T.V Broadcast Network Co,.Ltd | 5,120 |
| AS7529 | NetIRD Inc. | 5,120 |
| AS135401 | SAP | 5,120 |
| AS58788 | Chiroro-Net Co.,Ltd. | 5,120 |
| AS45687 | Minamikyusyu CableTV Net Inc. | 5,120 |
| AS23614 | Kochi Systems Co., Ltd. | 5,120 |
| AS37907 | DigiRock, Inc. | 5,120 |
| AS55376 | KCV communications CO.,LTD. | 5,120 |
| AS18259 | NTT Communications Corporation | 5,120 |
| AS38638 | Ip Core Corporation | 5,120 |
| AS38651 | Mixi,Inc. | 5,120 |
| AS131911 | HONJYO CABLE VISION CO., LTD. | 5,120 |
| AS37916 | A.T.WORKS,Inc. | 5,120 |
| AS37897 | AXEL NETWORKS, INC. | 4,608 |
| AS132095 | HEWLETT PACKARD-SHINSUNA COLO | 4,352 |
| AS55912 | University of Kochi | 4,352 |
| AS132119 | BNP Paribas | 4,096 |
| AS18086 | PFU LIMITED | 4,096 |
| AS9363 | FUJITSU KANSAI-CHUBU NET-TECH LIMITED | 4,096 |
| AS17934 | National Institute of Information and Communications Technology | 4,096 |
| AS17953 | BroadBand Security, Inc. | 4,096 |
| AS18138 | HI-NET INC. | 4,096 |
| AS18140 | Yahoo Japan Corporation | 4,096 |
| AS18141 | HBA | 4,096 |
| AS18143 | Mitsubishi Research Institute DCS Co.,Ltd. | 4,096 |
| AS18146 | Intec NetCore, Inc. | 4,096 |
| AS7527 | Japan Internet Exchange Co., Ltd. | 4,096 |
| AS18263 | MEITETSUCOM Co., Ltd. | 4,096 |
| AS18265 | ZEXIS CORPORATION | 4,096 |
| AS18289 | AT&T JAPAN KK | 4,096 |
| AS18290 | Mimedia Corporation | 4,096 |
| AS18383 | CAHI Corporation, | 4,096 |
| AS17688 | ShineOn LTD | 4,096 |
| AS17685 | SQUARE ENIX CO., LTD. | 4,096 |
| AS23795 | Fitec Corp. | 4,096 |
| AS23798 | VR Techno Center,inc | 4,096 |
| AS18067 | Humeia Corporation | 4,096 |
| AS9990 | Nippon Information and Communication Corporation | 4,096 |
| AS59102 | GENES Co., Ltd. | 4,096 |
| AS23773 | EKZM co.,ltd. | 4,096 |
| AS18072 | NTT Communications, Corp. | 4,096 |
| AS23794 | Club iT Corporation | 4,096 |
| AS23801 | NTT Communications | 4,096 |
| AS59116 | American International Group KK | 4,096 |
| AS23824 | Future Spirits Co.,Ltd. | 4,096 |
| AS55889 | Equinix Jpapan Enterprise K.K. | 4,096 |
| AS23836 | RELATION Co., Ltd. | 4,096 |
| AS18074 | First Riding Technology Inc. | 4,096 |
| AS23967 | Produce On Demand Inc. Streaming Contents Delivery Service Tokyo | 4,096 |
| AS24264 | Kanazawa Institute of Technology | 4,096 |
| AS10016 | Minaminihon Information Processing Center Co Ltd | 4,096 |
| AS24293 | FUJITSU SYSTEMS WEST LIMITED | 4,096 |
| AS17513 | Kids-way Corporation | 4,096 |
| AS17699 | MEDiA K.K. | 4,096 |
| AS45690 | Tokushima Central TV Co.,Inc. | 4,096 |
| AS37898 | digitiminimi, inc. | 4,096 |
| AS45672 | Koga Cable TV Co., Ltd. | 4,096 |
| AS38652 | Ginzado Co.,Ltd. | 4,096 |
| AS45688 | The University of Tokyo Interfaculty Initiative in Information Studies | 3,592 |
| AS55569 | Criteo APAC | 3,584 |
| AS18127 | Ibaraki Prefectural Government | 3,584 |
| AS45680 | DOVA Corporation | 3,328 |
| AS37984 | Chikushi Jogakuen University, Non-transit AS. | 3,328 |
| AS24470 | MAIS(Miyazaki Area Internet Society) | 3,328 |
| AS55902 | TS-NET of TOSET, Inc. in Japan | 3,328 |
| AS37900 | NTT Communications Corporation | 3,328 |
| AS45846 | Shiga area POP AS Number | 3,072 |
| AS58653 | UD Trucks Corporation, Volvo Information Technology Japan | 3,072 |
| AS133027 | ZenLogic Internet Ltd | 3,072 |
| AS58791 | GMO Internet,Inc | 3,072 |
| AS23616 | Hitachi Information Systems, Ltd. | 3,072 |
| AS23828 | Misaki Town | 3,072 |
| AS38633 | Value Core Inc. | 3,072 |
| AS37915 | Wakayama Prefectural Government | 3,072 |
| AS24270 | CRC Solutions Corp., | 3,072 |
| AS18211 | Nomura India Services Pvt Ltd | 3,072 |
| AS38627 | Baidu, Inc. | 2,816 |
| AS2515 | Japan Network Information Center | 2,816 |
| AS59103 | SoftEther Corporation | 2,816 |
| AS136439 | Cat Networks K.K. | 2,816 |
| AS59118 | NRI SecureTechnologies, Ltd. | 2,560 |
| AS136407 | Virtustream Cloud Services Australia Pty Limited | 2,560 |
| AS55898 | Yahoo Japan Corporation | 2,560 |
| AS37891 | JR TOKAI Information Systems Company | 2,560 |
| AS24121 | Equinix Asia Pacific | 2,304 |
| AS24229 | IX-layers, Inc. | 2,304 |
| AS45682 | Excite Japan Co., Ltd. | 2,304 |
| AS24288 | Accutechs Co., Ltd. | 2,048 |
| AS63772 | extride inc. | 2,048 |
| AS136506 | LEON CO.LTD | 2,048 |
| AS24250 | Miyagin Computer Service Co.,ltd | 2,048 |
| AS59123 | Kakaku.com, Inc. | 2,048 |
| AS24253 | J-Stream Inc. | 2,048 |
| AS59095 | ACCELIA | 2,048 |
| AS38634 | DWANGO Co.,Ltd. | 2,048 |
| AS55393 | Midokura Japan K.K. | 2,048 |
| AS24262 | HAMANASU INFORMATION Co., Ltd. | 2,048 |
| AS131907 | Iwami Cablevision Co.,Ltd. | 2,048 |
| AS23633 | Niigata Communication Service | 2,048 |
| AS24265 | NTT Communications Corporation | 2,048 |
| AS59126 | NCT CO.,LTD. | 2,048 |
| AS131929 | Yamanashi CATV Co,. ltd | 2,048 |
| AS131928 | Tottori Teletopia Co., Ltd. | 2,048 |
| AS59129 | LogicLinks, Inc. | 2,048 |
| AS131902 | Sony Corporation | 2,048 |
| AS59101 | mirai-bs corporation | 2,048 |
| AS55383 | YYY Group, Inc. | 2,048 |
| AS59112 | Plus One marketing Ltd. | 2,048 |
| AS18272 | Benesse InfoShell Co.,Ltd | 2,048 |
| AS7530 | BroadBand Tower, Inc. | 2,048 |
| AS24286 | Weathernews,Inc. | 2,048 |
| AS58784 | Rissho University | 2,048 |
| AS18090 | IMS Corporation | 2,048 |
| AS37912 | IPRIO Corporation. | 2,048 |
| AS38642 | Yoshizou XYZ Solutions | 2,048 |
| AS18076 | Institute of Advanced Media Arts and Sciences | 2,048 |
| AS37889 | J-PARC Center | 1,792 |
| AS23799 | National Defense Academy | 1,792 |
| AS38643 | UNIADEX, LTD. | 1,792 |
| AS4697 | NTT PF Labs | 1,792 |
| AS134396 | AusRegistry Anycast system | 1,536 |
| AS38636 | DeNA, Co. Ltd. | 1,536 |
| AS24280 | Hitachi Systems, Ltd. | 1,536 |
| AS18139 | Hitachi Solutions, Ltd. | 1,536 |
| AS132504 | QUALITIA Co.,Ltd | 1,536 |
| AS18123 | INAOKI EDUCATIONAL INSTITUTION | 1,536 |
| AS4710 | NTT | 1,536 |
| AS38629 | NTT Communications Corporation | 1,280 |
| AS58648 | AT-I, Inc. | 1,280 |
| AS136782 | Kirin Networks | 1,280 |
| AS7667 | KDDI R&D Laboratories, INC. | 1,280 |
| AS7674 | NTT Communications Corporation | 1,280 |
| AS133203 | SBI BITS Co., Ltd. | 1,280 |
| AS131904 | Cyber Feel Inc. | 1,280 |
| AS131910 | SORACOM. INC. | 1,024 |
| AS131160 | Wire and Wireless Co.,Ltd. | 1,024 |
| AS131920 | WirelessGate, Inc. | 1,024 |
| AS4718 | Cyber Kansai Project | 1,024 |
| AS137001 | OSOA Co.,LTD. | 1,024 |
| AS55891 | WATCH TOWER BIBLE AND TRACT SOCIETY | 1,024 |
| AS131901 | FIDESSA KK | 1,024 |
| AS7500 | WIDE Project | 1,024 |
| AS45676 | SBI TradeWinTech Co.,Ltd. | 1,024 |
| AS18149 | Japan Registry Service Co., Ltd. | 1,024 |
| AS55375 | SmartInsight Inc. | 1,024 |
| AS55896 | Videx Inc. | 1,024 |
| AS59099 | BroadBand Tower, Inc. | 1,024 |
| AS55894 | Who's Next | 1,024 |
| AS55382 | Nagato city office | 1,024 |
| AS24477 | Network Appliance ASIAPAC | 1,024 |
| AS54415 | WIZ TECHNOLOGIES | 1,024 |
| AS38648 | F-REGI Co.,Ltd. | 1,024 |
| AS63771 | Border Gateway Protocol Network Analysis Project | 1,024 |
| AS136574 | Zheye Networks | 1,024 |
| AS59114 | Recruit Holdings Co.,Ltd. | 1,024 |
| AS18091 | Teikyo University | 1,024 |
| AS136178 | FIL Japan Holdings K.K. | 1,024 |
| AS133476 | First Innovation K.K. | 1,024 |
| AS23885 | Oracle Corporation | 1,024 |
| AS4774 | A-Bone by Internet Initiative Japan Inc. | 1,024 |
| AS59122 | Ranger-Systems Co., Ltd. | 1,024 |
| AS55890 | Suntory Business Expert Limited | 1,024 |
| AS131905 | Japan Registry Services Co., Ltd. | 1,024 |
| AS131909 | Okinawa Data Center | 1,024 |
| AS58792 | WirelessGate, Inc. | 1,024 |
| AS23826 | Daido University | 1,024 |
| AS58654 | BLESS Co.,Ltd. | 1,024 |
| AS59110 | BPS Inc. | 1,024 |
| AS59093 | IMABARI CATV CORPORATION | 1,024 |
| AS131912 | Cybozu,Inc. | 1,024 |
| AS59105 | Home NOC Operators Group | 1,024 |
| AS59097 | Okinawa Cross Head Co., Ltd. | 1,024 |
| AS58645 | Miyagi Cable TV Co.,Ltd | 1,024 |
| AS58789 | DUNAMIS Co.,Ltd | 1,024 |
| AS55378 | QUICK Corp. | 1,024 |
| AS37888 | HORIBA, Ltd. | 768 |
| AS206689 | Beeks Financial Cloud Ltd | 768 |
| AS24283 | MIEDEN SYSTEM SOLUTION .LTD | 768 |
| AS24263 | HONDA MOTOR Co., Ltd. | 768 |
| AS55905 | TOP CLOUD Inc. | 768 |
| AS38033 | internet content provider | 768 |
| AS37893 | TradeWeb Europe Limited | 768 |
| AS10209 | Japan HUB and Data Center | 768 |
| AS131896 | SSI Lab Inc. | 768 |
| AS55907 | GMO Internet,Inc | 768 |
| AS131155 | NTT Communications Corporation | 512 |
| AS132211 | FX Corporate LLC | 512 |
| AS55873 | Shiodome City Center 15F | 512 |
| AS132451 | 2142-1;KUKIOKA;MAEDA; | 512 |
| AS55895 | N.S.Computer Service Co.,Ltd. | 512 |
| AS24291 | MITSUI & CO., LTD. | 512 |
| AS4717 | WIDE Project | 512 |
| AS7661 | Network Organization for Research and Technologyin Hokkaido | 512 |
| AS38658 | LIQUIDNET ASIA LIMITED | 512 |
| AS133782 | Elsevier Ltd | 512 |
| AS63917 | 7-1, Udagawacho, | 512 |
| AS59120 | Tsukuba Internet Service Corporation | 512 |
| AS136779 | Schneider Electric Japan Ltd | 512 |
| AS131158 | Nara Institute of Science and Technology, National University Corporation | 512 |
| AS24260 | Board of trusty: Kinjo-Gakuen | 512 |
| AS55396 | NRI SecureTechnologies, Ltd | 512 |
| AS24257 | Japan Internet Exchange Co., Ltd. | 512 |
| AS45691 | Elliott Advisors Asia Limited | 512 |
| AS131895 | Okinawa Institute of science and technology | 384 |
| AS59111 | Akita International University | 256 |
| AS18080 | Sopiafons Co.,Ltd | 256 |
| AS18284 | Isetan Data Center Co., Ltd. | 256 |
| AS24252 | Japan Registry Service Co., Ltd. | 256 |
| AS24256 | SOFTBANK Corp. | 256 |
| AS23634 | WIDE Project | 256 |
| AS23642 | OBIS | 256 |
| AS23761 | Xpedite Systems | 256 |
| AS23774 | Japan Registry Service Co., Ltd. | 256 |
| AS23833 | Marusan Securities Co., LTD. | 256 |
| AS23929 | Ubiquitous Corp. Data Center Network. | 256 |
| AS23940 | THOMSON FINANCIAL. Financial Content provider.Tokyo | 256 |
| AS24047 | Internet Systems Consortium, Inc. | 256 |
| AS24274 | Actelion Pharmaceuticals Japan Ltd. | 256 |
| AS24287 | National Institute of Informatics | 256 |
| AS137008 | 1120 Shimokuzawa Chuo-ku Sagamihara-shi Kanagawa-ken | 256 |
| AS135646 | Luginbash AS | 256 |
| AS135642 | Abadi Internet Services LLC | 256 |
| AS37905 | Brastel Co.,Ltd | 256 |
| AS37906 | NetIRD Inc. | 256 |
| AS135304 | VMWare Incorporation | 256 |
| AS134827 | EY Business Initiative Co., Ltd | 256 |
| AS133900 | Gilead Sciences, Inc. | 256 |
| AS38646 | WIDE Project | 256 |
| AS45217 | Tora Trading Services Ltd. | 256 |
| AS45674 | BIGLOBE Inc. | 256 |
| AS45678 | ABN AMRO Clearing Tokyo Co., Ltd. | 256 |
| AS132496 | SBI BITS Co., Ltd. | 256 |
| AS4690 | WIDE Project | 256 |
| AS131924 | Kansai Airports | 256 |
| AS4777 | Asia Pacific Network Information Centre | 256 |
| AS55373 | Foundation for Biomedical Research and Innovation | 256 |
| AS55377 | Sadiatec Co., Ltd | 256 |
| AS59113 | RICOH JAPAN Corporation | 256 |
| AS131917 | Toshiba I.S. corp | 256 |
| AS55908 | Nomura Research Institute,Ltd. | 256 |
| AS55909 | Kochi National College of Technology | 256 |
| AS55949 | Technopro Holdings | 256 |
| AS59115 | CYBERDYNE Inc. | 256 |
| AS59117 | RBNET Co.,Ltd. | 256 |
| AS131913 | Niigata ken | 256 |
| AS58649 | GMO Internet,Inc | 256 |
| AS58651 | GMO Internet,Inc | 256 |
| AS131906 | Gap Japan K.K. | 256 |
| AS59124 | KYOTO Prefectural Government | 256 |
| AS59128 | Kyoto University Microcomputer Club | 256 |
| AS63773 | Birdie Mobile Inc. | 256 |
| AS131903 | Nomura Research Institute,Ltd. | 256 |
| AS131894 | UNIADEX, LTD. | 256 |
| AS131078 | KDDI R&D Laboratories, INC. | 256 |
| AS37904 | Softbank Mobile Corp. | 0 |
| AS134532 | ATT NBE Equinix Tokyo | 0 |
| AS38910 | Transit AS Tokyo | 0 |
| AS4197 | Yahoo Japan Corporation | 0 |
| AS45139 | Microsoft Corp | 0 |
| AS4251 | TWICS Co. Ltd. | 0 |
| AS10124 | Amazon Data Services Japan KK | 0 |
| AS45436 | Green Net Co., Ltd. | 0 |
| AS37902 | Nomura Research Institute, Ltd. | 0 |
| AS132592 | Star Co,.Ltd. | 0 |
| AS9608 | HAPPY JAPAN BiNAL INC. | 0 |
| AS10007 | SoftBank Mobile Corp. | 0 |
| AS37901 | NIPPON TELEGRAPH AND TELEPHONE EAST CORPORATION | 0 |
| AS37899 | NIPPON TELEGRAPH AND TELEPHONE WEST CORPORATION | 0 |
| AS9609 | Ymobile Corporation | 0 |
| AS45679 | Tatsumi, Tomo | 0 |
| AS37896 | AS37896 | 0 |
| AS45681 | GIGAPRIZE Co. | 0 |
| AS37894 | AS37894 | 0 |
| AS45683 | AS45683 | 0 |
| AS37890 | AS37890 | 0 |
| AS45685 | Rikkyo Gakuin Rikkyo University | 0 |
| AS45686 | INTERNET MULTIFEED CO. | 0 |
| AS3775 | Global Network Solutions, IBM Japan, Ltd. | 0 |
| AS37909 | Wakkanai Hokusei Gakuen University | 0 |
| AS45689 | Convivial Net | 0 |
| AS37895 | Ryukoku University | 0 |
| AS3510 | Real World Computing Partnership | 0 |
| AS3391 | ASCIInet Corporation | 0 |
| AS2915 | AT&T Jens Corporation | 0 |
| AS9610 | Japan Network Information Center | 0 |
| AS2713 | AT&T Jens Corporation | 0 |
| AS2528 | Block of 32 AS numbers from AS2497 to AS2528 | 0 |
| AS4674 | AS4674 | 0 |
| AS4676 | AS4676 | 0 |
| AS2525 | Block of 32 AS numbers from AS2497 to AS2528 | 0 |
| AS132383 | Y's Enterprise Co.,Ltd. | 0 |
| AS4679 | AS4679 | 0 |
| AS132373 | ASIAN-WEB-JP | 0 |
| AS4681 | Yahoo Japan Corporation | 0 |
| AS4682 | SoftBank Mobile Corp. | 0 |
| AS4683 | Phase One, Inc. | 0 |
| AS4684 | NTT PC Communications, Inc. | 0 |
| AS132290 | AstraZeneca UK Limited | 0 |
| AS2524 | EJWORKS CORPORATION | 0 |
| AS4687 | AS4687 | 0 |
| AS4688 | Internet Initiative Japan Inc. | 0 |
| AS4689 | AS4689 | 0 |
| AS4692 | InternetWare Co., LTD. | 0 |
| AS9611 | Japan Network Information Center | 0 |
| AS4691 | Dream Train Internet Inc. | 0 |
| AS132120 | Internet Systems Consortium | 0 |
| AS2522 | Block of 32 AS numbers from AS2497 to AS2528 | 0 |
| AS2521 | Yahoo Japan Corporation | 0 |
| AS10005 | Japan Network Information Center | 0 |
| AS4696 | AS4696 | 0 |
| AS2520 | Block of 32 AS numbers from AS2497 to AS2528 | 0 |
| AS4698 | InterLink Co., Ltd. | 0 |
| AS4699 | AS4699 | 0 |
| AS4708 | Nippon Internet Access Inc. | 0 |
| AS4700 | Niji-Net Inc. | 0 |
| AS4701 | AS4701 | 0 |
| AS4702 | AS4702 | 0 |
| AS132024 | Rebyc Inc. | 0 |
| AS4703 | AS4703 | 0 |
| AS2517 | Block of 32 AS numbers from AS2497 to AS2528 | 0 |
| AS131931 | Aomori Cable TV Co., Ltd. | 0 |
| AS4705 | AS4705 | 0 |
| AS4706 | AS4706 | 0 |
| AS4707 | AS4707 | 0 |
| AS4709 | NetLaputa Corporation | 0 |
| AS136769 | WingTecJapan G.K | 0 |
| AS2509 | Block of 32 AS numbers from AS2497 to AS2528 | 0 |
| AS4712 | JAPAN TOBACCO INC. | 0 |
| AS131930 | Tokyo Broadcasting System Television, Inc. | 0 |
| AS4714 | AS4714 | 0 |
| AS4715 | AS4715 | 0 |
| AS4716 | KDDI CORPORATION | 0 |
| AS2507 | Block of 32 AS numbers from AS2497 to AS2528 | 0 |
| AS137407 | EIC INC | 0 |
| AS137445 | PF LINK SYSTEMS | 0 |
| AS2503 | Tohoku Open Internet Community | 0 |
| AS2502 | The University of Tokyo | 0 |
| AS4720 | AS4720 | 0 |
| AS137462 | Rakuten Communications K.K. | 0 |
| AS2499 | Japan Network Information Center | 0 |
| AS4722 | SoftBank Corp. | 0 |
| AS4724 | AS4724 | 0 |
| AS9612 | Japan Network Information Center | 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 |
| AS9613 | Japan Network Information Center | 0 |
| AS4785 | xTom | 0 |
| AS2498 | Block of 32 AS numbers from AS2497 to AS2528 | 0 |
| AS63524 | Equinix Asia Pacific | 0 |
| AS63978 | CJL-JP | 0 |
| AS17503 | Japan Network Information Center | 0 |
| AS55817 | Nippon Telegraph and Telephone Corporation PF Labs | 0 |
| AS17507 | Japan Network Information Center | 0 |
| AS17508 | Japan Network Information Center | 0 |
| AS55372 | University of the Ryukyus | 0 |
| AS24294 | AS24294 | 0 |
| AS10033 | iBasis Tokyo ICO | 0 |
| AS55897 | SAKURA Internet Inc. | 0 |
| AS55374 | WIDE Project | 0 |
| AS24292 | NS Solutions Corporation | 0 |
| AS24285 | AS24285 | 0 |
| AS10020 | Japan Network Information Center | 0 |
| AS17515 | Japan Network Information Center | 0 |
| AS24281 | NTT SmartConnect Corporation | 0 |
| AS131922 | Birdie Mobile Inc. | 0 |
| AS17517 | Japan Network Information Center | 0 |
| AS17519 | Japan Network Information Center | 0 |
| AS24272 | AS24272 | 0 |
| AS24269 | AS24269 | 0 |
| AS17520 | Japan Network Information Center | 0 |
| AS55386 | AS55386 | 0 |
| AS24267 | AS24267 | 0 |
| AS24266 | AS24266 | 0 |
| AS55389 | Japan Network Enabler Corporation | 0 |
| AS17521 | Kochi University of Technology | 0 |
| AS24258 | AS24258 | 0 |
| AS55395 | Rakuten Communications Corp. | 0 |
| AS17522 | NIPPON TELEGRAPH AND TELEPHONE WEST CORPORATION | 0 |
| AS24114 | Equinix Asia Pacific | 0 |
| AS55457 | A4 Ltd | 0 |
| AS55475 | Impact Co Ltd | 0 |
| AS9616 | WIDE Project | 0 |
| AS55748 | 7-9-10 Nishi-Shinjuku | 0 |
| AS24056 | Internet Data Centre | 0 |
| AS23926 | JP DC | 0 |
| AS23835 | Sega Corporation | 0 |
| AS23834 | AS23834 | 0 |
| AS23832 | AS23832 | 0 |
| AS23831 | NISIOWARI CATV CORPORATION | 0 |
| AS55892 | DNPDC | 0 |
| AS55893 | NTT DATA CORPORATION | 0 |
| AS10018 | Japan Network Information Center | 0 |
| AS55901 | Sony Computer Entertainment Inc | 0 |
| AS23830 | Gaitame.com Co.,Ltd. | 0 |
| AS55903 | Tokyo Stock Exchange, Inc. | 0 |
| AS23825 | AS23825 | 0 |
| AS23823 | AS23823 | 0 |
| AS55906 | Ustream Asia, Inc. | 0 |
| AS23821 | AS23821 | 0 |
| AS18079 | JPNIC | 0 |
| AS10017 | Japan Network Information Center | 0 |
| AS17525 | Japan Cablenet Limited | 0 |
| AS55911 | Tokuyama College of Technology | 0 |
| AS23819 | AS23819 | 0 |
| AS55935 | erg Co. | 0 |
| AS9620 | Japan Network Information Center | 0 |
| AS18078 | JPNIC | 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 |
| AS17526 | Japan Network Information Center | 0 |
| AS56218 | QGPOP | 0 |
| AS23815 | Japan Internet Exchange Co., Ltd. | 0 |
| AS17942 | Japan Network Information Center | 0 |
| AS23814 | WIDE Project | 0 |
| AS23813 | SORUN Corporation | 0 |
| AS58786 | GMO Internet,Inc | 0 |
| AS58787 | Comzware Inc | 0 |
| AS23812 | Japan Broadband Communications Corporation | 0 |
| AS23811 | SIGA2009 | 0 |
| AS58531 | Tibanne Co. Ltd. | 0 |
| AS58535 | MarketPrizm BV | 0 |
| AS23810 | IC-NET Corporation | 0 |
| AS58646 | FreeBit Co.,Ltd. | 0 |
| AS18073 | JPNIC | 0 |
| AS23809 | Televi Naruto .CO.,LTD | 0 |
| AS9935 | AGNS Customer AS | 0 |
| AS17527 | CHITA MEDIAS NETWORK INC. | 0 |
| AS17945 | iTV Co,Ltd | 0 |
| AS23806 | Chupicom Hiroshima Corp. | 0 |
| AS23803 | The University of Tokyo | 0 |
| AS23802 | AS23802 | 0 |
| AS58728 | Instream | 0 |
| AS58790 | ZENRIN DataCom Co.,LTD. | 0 |
| AS23800 | Fukui National College of Technology | 0 |
| AS17528 | Okinawa Tele Message Corporation | 0 |
| AS23792 | AS23792 | 0 |
| AS17531 | Japan Network Information Center | 0 |
| AS59119 | HIDATAKAYAMA CABLE NETWORK INC. | 0 |
| AS23789 | AS23789 | 0 |
| AS131908 | INTEC Inc. | 0 |
| AS17532 | Tokyo Polytechnic University | 0 |
| AS23787 | AS23787 | 0 |
| AS17533 | Japan Network Information Center | 0 |
| AS23748 | Cat Networks K.K. | 0 |
| AS23643 | AS23643 | 0 |
| AS59098 | Cable DR Cloud Joint Venture | 0 |
| AS23640 | BBIX,Inc. | 0 |
| AS59100 | Kochi Gakuen College | 0 |
| AS23638 | AMIXCOM Inc. | 0 |
| AS17674 | Japan Network Information Center | 0 |
| AS23636 | AS23636 | 0 |
| AS23630 | CAC Inc. | 0 |
| AS23626 | Verizon Japan Ltd | 0 |
| AS59106 | SKYLINKS INC. | 0 |
| AS23625 | TOKAI Communications Corporation | 0 |
| AS10009 | AREWORKS Rworks | 0 |
| AS17679 | Japan Network Information Center | 0 |
| AS23622 | Tsuru Gakuen | 0 |
| AS17951 | Kobe Community Exchange Co. | 0 |
| AS23621 | GINGA SYSTEM CO.,LTD | 0 |
| AS23617 | Koutoku-Sangyou Co | 0 |
| AS17681 | Japan Network Information Center | 0 |
| AS23612 | AS23612 | 0 |
| AS17684 | Japan Network Information Center | 0 |
| AS9992 | Japan Network Information Center | 0 |
| AS23797 | IXO | 0 |
| AS23782 | Fujitsu System Solutions Ltd | 0 |
| AS17690 | Japan Network Information Center | 0 |
| AS10008 | Japan Network Information Center | 0 |
| AS17692 | Kyocera Communication Systems Co., Ltd. | 0 |
| AS59130 | NTT Communications Corperation | 0 |
| AS18288 | JPNIC | 0 |
| AS18287 | OCV Odakyu Telecommunication Services | 0 |
| AS18286 | Osaka City University | 0 |
| AS17952 | Japan Network Information Center | 0 |
| AS63774 | Kamoike.net LLP | 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 |
| AS18285 | JPNIC | 0 |
| AS18280 | JPNIC | 0 |
| AS7669 | DIGITAL TECHNOLOGIES CORPORATION | 0 |
| AS7488 | Yahoo Japan Corporation | 0 |
| AS18279 | Bukkyo University | 0 |
| AS17977 | SINGTEL-JP | 0 |
| AS7501 | AS7501 | 0 |
| AS18277 | Kurashiki University of Science and the Arts | 0 |
| AS17695 | MLJS | 0 |
| AS7504 | AS7504 | 0 |
| AS18275 | JPNIC | 0 |
| AS18273 | JPNIC | 0 |
| AS7507 | AS7507 | 0 |
| AS18270 | Toin University of Yokohama | 0 |
| AS7508 | AS7508 | 0 |
| AS7509 | Hokkaido University | 0 |
| AS7510 | AS7510 | 0 |
| AS17697 | NTT PC Communications, Inc. | 0 |
| AS7512 | WITH Network | 0 |
| AS9994 | Japan Network Information Center | 0 |
| AS18262 | JPNIC | 0 |
| AS7515 | NTT Communications Corporation | 0 |
| AS7518 | AS7518 | 0 |
| AS7519 | AS7519 | 0 |
| AS7520 | AS7520 | 0 |
| AS18261 | JPNIC | 0 |
| AS17949 | Tokyo University of Technorogy | 0 |
| AS17700 | Japan Cablenet Limited | 0 |
| AS18269 | Kai Creates Inc. | 0 |
| AS7525 | AS7525 | 0 |
| AS7526 | Mitsubishi Electric Information Network Corporation | 0 |
| AS18152 | JPNIC | 0 |
| AS7528 | AS7528 | 0 |
| AS18151 | COMPUTER ENGINEERING & CONSULTING LTD. | 0 |
| AS17702 | Japan Network Information Center | 0 |
| AS7531 | GenomeNet Project | 0 |
| AS17703 | Japan Network Information Center | 0 |
| AS18147 | JPNIC | 0 |
| AS7662 | AS7662 | 0 |
| AS18145 | JPNIC | 0 |
| AS17704 | Japan Network Information Center | 0 |
| AS18137 | JPNIC | 0 |
| AS7666 | Mitsubishi Corporation | 0 |
| AS17751 | for assignment to JPNIC members | 0 |
| AS17795 | Netvein.co.jp | 0 |
| AS18133 | GAMANIA | 0 |
| AS18132 | JPNIC | 0 |
| AS132833 | Research Management Ltd. | 0 |
| AS7673 | ejworks corporation | 0 |
| AS18131 | NTT Communications Corporation Innovative IP Architecture Center | 0 |
| AS7675 | AS7675 | 0 |
| AS18130 | JPNIC | 0 |
| AS17954 | Japan Network Information Center | 0 |
| AS17930 | Japan Network Information Center | 0 |
| AS17933 | Nippon Telegraph and Telephone East Corporation | 0 |
| AS131086 | Densan Co., Ltd. | 0 |
| AS7680 | AS7680 | 0 |
| AS7681 | AS7681 | 0 |
| AS131085 | Niigata Communication Service | 0 |
| AS7683 | trunk inc. | 0 |
| AS7685 | AS7685 | 0 |
| AS18122 | Advanced Software Technology & Management Research Institute of KYOTO | 0 |
| AS131084 | MKI Network Solutions, Ltd. | 0 |
| AS7688 | Nippon Internet Access Inc. | 0 |
| AS7689 | AS7689 | 0 |
| AS131082 | Japan Internet Exchange Co., Ltd. | 0 |
| AS7691 | AS7691 | 0 |
| AS9995 | FirstServer, Inc. | 0 |
| AS9996 | KDDI Corporation | 0 |
| AS18098 | JPNIC | 0 |
| AS17935 | Japan Network Information Center | 0 |
| AS9225 | Telstra Global - KK | 0 |
| AS131081 | Intec NetCore, Inc. | 0 |
| AS9222 | Intel Online Services Asia | 0 |
| AS9349 | AS9349 | 0 |
| AS9350 | AS9350 | 0 |
| AS131080 | SAKURA Internet Inc. | 0 |
| AS131157 | IMS Corporation | 0 |
| AS9356 | AS9356 | 0 |
| AS131106 | AS for DATAHOTEL, which is one of iDC in Japan, | 0 |
| AS18096 | JPNIC | 0 |
| AS9359 | AS9359 | 0 |
| AS9360 | AS9360 | 0 |
| AS9361 | AS9361 | 0 |
| AS9362 | AS9362 | 0 |
| AS18095 | Reitaku University | 0 |
| AS9364 | AS9364 | 0 |
| AS131079 | INTERNET MULTIFEED CO. | 0 |
| AS17959 | ICN K-techsjapan Inc. | 0 |
| AS18093 | JPNIC | 0 |
| AS131154 | NANO OPT Media, Inc. | 0 |
| AS9368 | AS9368 | 0 |
| AS9369 | AS9369 | 0 |
| AS131153 | KVH Co., Ltd. | 0 |
| AS131152 | BBIX,Inc. | 0 |
| AS9372 | The University of Electro-Communications | 0 |
| AS9373 | AS9373 | 0 |
| AS9375 | AS9375 | 0 |
| AS9376 | SMARTVALUE Co.,Ltd. | 0 |
| AS9377 | AS9377 | 0 |
| AS131075 | Nippon Telegraph and Telephone Corporation PF Labs., | 0 |
| AS9379 | AS9379 | 0 |
| AS9380 | Community Network Center Inc. | 0 |
| AS18089 | KDDI Corporation | 0 |
| AS131074 | APNIC R&D Centre JP | 0 |
| AS9592 | SOFTBANK TELECOM Corp. | 0 |
| AS131073 | Pacnet Global Ltd. | 0 |
| AS9594 | Japan Network Information Center | 0 |
| AS1233 | National Space Development Agency | 0 |
| AS9596 | Japan Network Information Center | 0 |
| AS18084 | Asia Netcom Japan Corp. | 0 |
| AS9598 | NTT Communications Corporation | 0 |
| AS9599 | EJWORKS CORPORATION | 0 |
| AS10807 | Hitachi Business International, Ltd. | 0 |
| AS18083 | JPNIC | 0 |
| AS9602 | Japan Network Information Center | 0 |
| AS9603 | Japan Network Information Center | 0 |
| AS17938 | SOFTBANK TELECOM Corp. | 0 |
| AS131898 | Yahoo Japan Corporation | 0 |
| AS38610 | APNIC R&D Centre JP | 0 |
| AS38630 | NTT West R&D Center | 0 |
| AS9606 | Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency | 0 |
| AS38645 | NTT Communications Corporation | 0 |
| AS38632 | cross-connect niigata co.,ltd. | 0 |
| AS38644 | INTERNET MULTIFEED CO. | 0 |
| AS38080 | Foresightwave INC. | 0 |
| AS37927 | Nomura Researth Institute, Ltd. | 0 |
| AS37926 | E-Times Technologies Co., Ltd. | 0 |
| AS38637 | AS38637 | 0 |
| AS37925 | USEN CORPORATION | 0 |
| AS37924 | Ministry of Land, Infrastructure and Transport Kinki Regional Development Bureau | 0 |
| AS38640 | SAKURA Internet Inc. | 0 |
| AS132906 | EVM Networks | 0 |
| AS37923 | NTT Communications Corporation | 0 |
| AS37921 | AS37921 | 0 |
| AS38647 | AS38647 | 0 |
| AS133795 | Choopa, LLC | 0 |
| AS38649 | AS38649 | 0 |
| AS38650 | AS38650 | 0 |
| AS133869 | SalesForce.com, Inc. | 0 |
| AS37913 | AS37913 | 0 |
| AS38653 | Japan Post Holdings Co., Ltd. | 0 |
| AS132888 | Freak | 0 |
| AS38655 | SaiNet Corporation | 0 |
| AS38656 | CSK Securities Service Co. | 0 |
| AS37911 | AS37911 | 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.