Japan ASN Summary
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. | 43,557,376 |
| AS4713 | NTT Communications Corporation | 28,902,912 |
| AS2516 | KDDI CORPORATION | 18,443,264 |
| AS2907 | Research Organization of Information and Systems, National Institute of Informatics | 8,935,424 |
| AS17506 | ARTERIA Networks Corporation | 5,382,144 |
| AS9824 | Jupiter Telecommunication Co. Ltd | 4,745,216 |
| AS2497 | Internet Initiative Japan Inc. | 3,800,576 |
| AS2518 | BIGLOBE Inc. | 3,674,112 |
| AS2527 | So-net Entertainment Corporation | 3,592,192 |
| AS17511 | OPTAGE Inc. | 3,138,304 |
| AS2510 | FUJITSU LIMITED | 3,070,720 |
| AS9605 | NTT DOCOMO, INC. | 2,671,872 |
| AS2514 | NTT PC Communications, Inc. | 2,103,296 |
| AS4725 | SoftBank Corp. | 2,047,488 |
| AS10013 | FreeBit Co.,Ltd. | 1,863,168 |
| AS2519 | ARTERIA Networks Corporation | 1,700,096 |
| AS9595 | NTT-ME Corporation | 1,644,544 |
| AS37903 | Ymobile Corporation | 1,491,968 |
| AS10010 | TOKAI Communications Corporation | 1,431,040 |
| AS18126 | Chubu Telecommunications Company, Inc. | 1,309,184 |
| AS9617 | Jupiter Telecommunications Co., Ltd. | 1,163,264 |
| AS4694 | IDC Frontier Inc. | 1,028,864 |
| AS4685 | Asahi Net | 1,011,712 |
| AS7679 | QTnet,Inc. | 696,320 |
| AS4721 | Jupiter Telecommunications Co., Ltd. | 631,808 |
| AS7522 | STNet, Incorporated | 529,408 |
| AS7671 | NTT SmartConnect Corporation | 451,584 |
| AS9365 | its communications Inc. | 404,480 |
| AS18081 | Kintetsu Cable Network Co., Ltd. | 401,408 |
| AS7684 | SAKURA Internet Inc. | 344,064 |
| AS9370 | SAKURA Internet Inc. | 338,432 |
| AS131932 | JR East Information Systems Company | 327,680 |
| AS9371 | SAKURA Internet Inc. | 326,144 |
| AS18144 | Energia Communications,Inc. | 289,792 |
| AS2506 | NTT WEST CHUGOKU CORPORATION | 279,808 |
| AS9597 | KDDI Web Communications Inc. | 276,736 |
| AS7506 | GMO Internet,Inc | 262,912 |
| AS2500 | WIDE Project | 262,656 |
| AS4673 | NTT DATA CORPORATION | 258,048 |
| AS4704 | Rakuten Mobile, Inc. | 248,576 |
| AS7524 | ITEC HANKYU HANSHIN CO.,LTD. | 231,680 |
| AS2522 | Japan Network Information Center | 229,120 |
| AS7687 | TOYOTA DIGITAL CRUISE.INCORPORATED | 204,800 |
| AS2501 | The University of Tokyo | 200,704 |
| AS23793 | National Institute of Advanced Industrial Science and Technology | 199,936 |
| AS138384 | Rakuten Mobile Network, Inc. | 195,584 |
| AS7514 | Computer Engineering & Consulting, Ltd. | 189,440 |
| AS9354 | Community Network Center Inc. | 188,928 |
| AS17941 | Equinix Jpapan Enterprise K.K. | 175,872 |
| AS9374 | EDION Corporation | 165,888 |
| AS17698 | COMMUNITY NETWORK CENTER INCORPORATED. | 163,840 |
| AS4686 | BEKKOAME INTERNET INC. | 157,440 |
| AS9351 | ZTV CO.,LTD | 151,552 |
| AS17529 | STARCAT CABLE NETWORK Co .,LTD. | 143,360 |
| AS18077 | Yamaguchi Cable Vision Co.,Ltd | 135,680 |
| AS9619 | Sony Global Solutions Inc. | 135,168 |
| AS7670 | Energia Communications, Inc. | 134,144 |
| AS9614 | Oita Cable Telecom Co,ltd. | 133,120 |
| AS37917 | University of Tsukuba | 132,096 |
| AS2504 | Kyoto University | 132,096 |
| AS17516 | NTT COMWARE CORPORATION | 131,072 |
| AS4729 | Japan Atomic Energy Agency | 131,072 |
| AS38635 | Keio University | 131,072 |
| AS24297 | University Public Corporation Osaka | 131,072 |
| AS10021 | KVH Co.,Ltd | 126,208 |
| 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 | IDC Frontier Inc. | 108,288 |
| AS45684 | Kyocera Communication Systems Co., Ltd. | 98,304 |
| AS18097 | D.C.N. Corporation | 96,256 |
| AS59108 | KATCH NETWORK INC. | 96,256 |
| AS4678 | Canon IT Solutions Inc. | 94,208 |
| AS9993 | ITOCHU Techno-Solutions Corporation | 91,136 |
| AS24282 | KAGOYA JAPAN Inc. | 89,344 |
| AS55392 | INTERNET MULTIFEED CO. | 84,992 |
| AS9600 | So-net Corporation | 82,944 |
| AS18260 | EHIME CATV CO.,LTD. | 80,384 |
| AS131921 | GMO CLOUD K.K. | 80,128 |
| AS17514 | Otsuka Corp. | 79,872 |
| AS7511 | SYNAPSE Co.,Ltd. | 77,824 |
| 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 |
| AS9615 | TOYOHASHI CABLE NETWORK INC. | 71,680 |
| AS23820 | Rakuten,Inc. | 71,680 |
| AS17673 | MITSUI KNOWLEDGE INDUSTRY CO., LTD. | 71,680 |
| AS17509 | STARNET Co.,Ltd. | 71,680 |
| AS10000 | Nagasaki Cable Media Inc. | 69,632 |
| AS17947 | SAKURA KCS Corporation. | 69,632 |
| AS18271 | Sojitz Systems Corporation | 69,632 |
| AS37918 | Nippon Telegraph and Telephone Corporation | 69,376 |
| AS55391 | INTERNET MULTIFEED CO. | 68,608 |
| AS23720 | Rakuten Mobile Network, Inc. | 68,096 |
| AS23816 | Yahoo Japan Corporation | 67,840 |
| AS17961 | mitene internet co., ltd. | 67,584 |
| AS2526 | Global Solution 2nd Office. IT Strategy & Digital Integration Division. Hitachi, Ltd. | 67,584 |
| AS4730 | Osaka University | 67,584 |
| AS18268 | Naganoken Kyodou Densan Co.Ltd. | 67,072 |
| AS24261 | Mie University | 66,304 |
| AS17944 | Japan Weather Association | 65,792 |
| AS17932 | Japan Advanced Institute of Science and Technology | 65,792 |
| AS17523 | Aoyama Gakuin University | 65,536 |
| AS10014 | Nihon University | 65,536 |
| AS9991 | Hiroshima Shudo University | 65,536 |
| AS18276 | Kansai 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 |
| AS131159 | Yamagata University | 65,536 |
| AS18128 | RIKEN(Physical and Chemical Research Institute) | 65,536 |
| AS9355 | National Institute of Information and Communications Technology | 65,536 |
| AS131897 | National University Corporation ,Ehime University | 65,536 |
| AS18125 | Ministry of Agriculture, Forestry and Fisheries Research Network | 65,536 |
| AS18124 | Okayama University of Science | 65,536 |
| AS23615 | University of Shizuoka | 65,536 |
| AS23623 | Chuo University | 65,536 |
| AS131919 | Meiji University | 65,536 |
| AS18087 | Toyo University | 65,536 |
| AS131930 | Tokyo Broadcasting System Television, Inc. | 65,536 |
| AS18069 | SOFTBANK TECHNOLOGY CORP. | 65,536 |
| AS17960 | University of the Ryukyus | 65,536 |
| AS17956 | WASEDA University | 65,536 |
| AS23779 | NTT Communications Corporation | 65,536 |
| AS17946 | Gifu University | 65,536 |
| AS59104 | Soka University | 65,536 |
| AS58785 | Tohoku Gakuin University | 65,536 |
| AS58652 | Kochi University | 65,536 |
| AS55904 | KOGAKUIN University | 65,536 |
| AS18148 | Fukuoka University | 65,536 |
| AS55390 | Tokyo University of Science | 65,536 |
| AS17701 | Seinan Gakuin University | 65,536 |
| AS23807 | Ritsumeikan University | 65,536 |
| AS55380 | Kanazawa University | 65,536 |
| AS55379 | Hosei University | 65,536 |
| AS24248 | Wakayama University | 65,536 |
| AS24254 | Kyoto Sangyo 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 |
| AS24268 | National University Corporation Shizuoka University | 65,536 |
| AS2523 | JSPS 163rd Committee on Internet Technology | 65,536 |
| AS2513 | Japan Science and Technology Agency | 65,536 |
| AS2508 | Kyushu University | 65,536 |
| AS24275 | TOTO LTD. | 65,536 |
| AS17510 | INFORMATION SERVICES INTERNATIONAL - DENTSU, LTD. | 65,536 |
| AS17512 | Japan Airlines International Co., Ltd. | 65,536 |
| AS38628 | HIMEJI CABLE TELEVISION CORPORATION | 64,512 |
| AS7672 | Hokuden Information System Service Co.,Ltd. | 64,512 |
| AS9622 | Kurashiki Cable TV | 63,488 |
| AS17686 | ACCELIA | 63,488 |
| AS10006 | SECOM Trust Systems Co.,Ltd. | 59,392 |
| AS17939 | miyazaki cabletelevision network Co.,LTD | 59,392 |
| AS4723 | Dolphin | 57,344 |
| AS4677 | Marubeni OKI Network Solutions Inc. | 57,344 |
| AS23791 | LCV Corporation | 52,224 |
| AS59127 | Newmedia Corporation | 51,200 |
| AS17675 | Internap Japan Co.,LTD. | 49,408 |
| AS4675 | UNIADEX, LTD. | 49,152 |
| AS37892 | Cable Media WAIWAI Co.,Ltd. | 49,152 |
| AS24295 | Internap Japan Co.,Ltd. | 49,152 |
| AS55387 | Japan Communication Inc. | 49,152 |
| AS131938 | NISSAN MOTOR CO.,LTD. | 49,152 |
| AS4680 | Mitsubishi Electric Information Network Corporation | 48,640 |
| AS23637 | Equinix Jpapan Enterprise K.K. | 47,104 |
| AS18278 | Cable TV Corporation | 47,104 |
| AS18282 | TONAMI Internet Service(TONAMI TransportationCo.,Ltd.) | 46,592 |
| AS9378 | Jupiter Telecommunications Co., Ltd. | 45,056 |
| AS23785 | SUN FIELD INTERNET LIMITED | 45,056 |
| AS4693 | CSK-IT MANAGEMENT CORPORATION | 45,056 |
| AS18136 | Jupiter Telecommunications Co., Ltd. | 43,008 |
| AS18092 | Kyushu Tele Communications Company | 43,008 |
| AS24296 | Yahoo Japan Corporation | 43,008 |
| AS10019 | Matsusaka Cable-TV Station Inc. | 43,008 |
| AS38631 | LINE Corporation | 42,752 |
| AS2511 | NTT | 41,728 |
| AS7690 | Mirai Communication Network Inc. | 41,472 |
| AS38634 | DWANGO Co.,Ltd. | 40,192 |
| AS7676 | TAM-Internet Service (T.A.M Co., Ltd.) | 39,936 |
| AS131918 | SHONAN CABLE NETWORK | 38,912 |
| AS18135 | BTV Cable Television CO.,LTD. | 38,912 |
| AS17530 | Nihon Network Service Co, .Ltd. | 38,912 |
| AS9998 | ISAO Corporation | 36,864 |
| AS10001 | Mics Network Corporation | 36,864 |
| AS24276 | Jupiter Telecommunications 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 |
| AS2512 | TCP Inc. | 35,072 |
| AS17955 | Densan Co., Ltd. | 34,816 |
| AS23783 | Cable Networks Akita Co.,ltd. | 34,560 |
| AS131959 | YOU Communications Corporation | 33,280 |
| AS58793 | FUJITSU CLOUD TECHNOLOGIES LIMITED | 33,024 |
| AS59121 | Asahi Kasei Networks Corporation | 33,024 |
| AS18150 | NetComBB Co.,Ltd. | 32,768 |
| AS9357 | NRI SecureTechnologies, Ltd. | 32,768 |
| AS9621 | Okinawa Telecommunication Network Co.,Inc | 31,744 |
| AS132827 | GATEWAY INC | 31,744 |
| AS18068 | Dream Wave Shizuoka Co. Ltd. | 31,232 |
| AS23624 | Chukai Television Co,.Ltd. | 30,720 |
| AS17661 | NHN JAPAN Corp. | 30,464 |
| AS18134 | Jupiter Telecommunications Co., Ltd. | 29,696 |
| AS7668 | Hokuriku Telecommunication Network Co. | 29,696 |
| AS55900 | GLBB Japan KK | 29,696 |
| AS4785 | xTom | 28,160 |
| AS9607 | BroadBand Tower, Inc. | 28,160 |
| AS59092 | kronos.Co.,Ltd. | 27,648 |
| AS23629 | Obihiro City Cable Co.,Ltd. | 27,136 |
| AS17504 | NRI Netcom, Ltd. | 26,880 |
| AS131934 | ICC Corporation | 26,624 |
| AS131927 | TV Matsumoto Cablevision | 26,624 |
| AS55394 | GREE, Inc. | 26,624 |
| AS24249 | JWAY co., Ltd. | 26,624 |
| AS24255 | Tannan Cable Television Corporation | 25,600 |
| AS23661 | CLARA ONLINE, Inc. | 24,832 |
| AS56291 | Ace, Inc. | 24,576 |
| AS17950 | SaiNet | 24,576 |
| AS135573 | mediatti broadband communications | 24,576 |
| AS10002 | IGAUENO CABLE TELEVISION CO.,LTD | 24,576 |
| AS10012 | Rakuten Mobile, Inc. | 24,576 |
| AS23788 | Jupiter Telecommunications Co., Ltd. | 24,576 |
| AS9601 | Niigata Communication Service | 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 |
| AS131937 | Joetsu Cable Vision | 22,528 |
| AS131916 | Tokyo Bay Network Co.,Ltd. | 22,528 |
| AS17958 | Kasaoka Cable Vision Co,LTD. | 21,504 |
| AS7505 | Fujitsu Systems Applications & Support Limited | 21,504 |
| AS17691 | NDS Co., Ltd. | 21,504 |
| AS131899 | DIG Inc. | 20,992 |
| AS23777 | NTT BUSINESS SOLUTIONS CORPORATION | 20,992 |
| AS10004 | JIN Office Service Inc. | 20,992 |
| AS4695 | Energia Communications, Inc. | 20,480 |
| AS18267 | Doshisha University | 20,480 |
| AS24278 | USEN CORPORATION | 20,480 |
| AS45675 | Jupiter Telecommunications Co., Ltd. | 20,480 |
| AS18274 | Utsunomiya Cable TV Corporation | 20,480 |
| AS9999 | AT TOKYO Corporation | 20,224 |
| AS18283 | Fureai Channel Inc. | 19,456 |
| AS17957 | SOUTH TOKYO CABLETELEVISION | 19,456 |
| AS18129 | OKAYAMA NETWORK INC. | 19,456 |
| AS59109 | Hitachi,Ltd., Cloud services Division | 19,456 |
| AS23784 | SQUARE ENIX CO., LTD. | 18,432 |
| AS23790 | Jupiter Telecommunications Co., Ltd. | 18,432 |
| AS131915 | Hamamatsu Cable Television .Inc | 18,432 |
| AS10011 | advanscope.inc | 18,432 |
| AS23805 | Watarase Television Co.,Ltd | 18,432 |
| AS9997 | Suzuka Cable Co.,Ltd | 18,432 |
| AS24277 | Okinawa Cable Network Inc. | 18,432 |
| AS131958 | Tama Cable Network Co.,Ltd. | 17,920 |
| AS23627 | UEDA CABLE VISION CO.,LTD. | 17,408 |
| AS18094 | Tokyo Cable Network.,INC | 17,408 |
| AS4711 | INTEC Inc. | 17,408 |
| AS63770 | Industrial Cyber Security Center of Excellence | 17,408 |
| AS18071 | Panasonic Corporation Corporate Information Systems Company | 16,640 |
| AS9466 | UUNET Japan Limited | 16,640 |
| AS17931 | Netforest,Inc. | 16,384 |
| AS18085 | Fujitsu Systems Applications & Support Limited | 16,384 |
| AS17683 | Wingtechnology Communications, Inc. | 16,384 |
| AS23780 | CTB Media Inc. | 16,384 |
| AS55384 | Japan Advanced Institute of Science and Technology | 16,384 |
| AS23635 | CRCCMedia Co.,ltd | 16,384 |
| AS24271 | Iruma CATV co. | 16,384 |
| AS23778 | IMIZU CABLE NETWORK CO.,LTD. | 16,384 |
| AS7503 | Air Internet Service Co.,Ltd. | 16,384 |
| AS55910 | Shibaura Institute of Technology | 16,384 |
| AS59125 | FAMILY NET JAPAN INCORPORATED | 15,616 |
| AS131925 | FAMILY NET JAPAN INCORPORATED | 15,360 |
| AS24251 | Iwakuni Cable Network Corporation | 15,360 |
| AS24259 | kanuma cable television Corporation | 15,360 |
| AS17936 | Cable Television Kani Co.,Inc. | 14,336 |
| AS9604 | FUJI SOFT INCORPORATED | 14,336 |
| AS23808 | TOSHIMA CABLE NETWORK CO.,LTD | 14,336 |
| AS63997 | Tsukaeru.net, Web Hosting Company, Japan | 13,824 |
| AS131952 | Asahikawa Cable Television Co., Ltd. | 13,824 |
| AS7677 | Dai Nippon Printing Co., Ltd | 13,568 |
| AS18070 | Global Network Core Co.,Ltd. | 13,312 |
| AS58650 | Warabi Cable Vision Co., Ltd. | 12,800 |
| AS55381 | CITY-CABLE SHUNAN Corporation | 12,800 |
| AS7529 | NetIRD Inc. | 12,544 |
| AS23817 | Fujitsu Limited. | 12,288 |
| AS23628 | Academic newtown Community Cable Service | 12,288 |
| AS18142 | KISTEM Co., Ltd. | 12,288 |
| AS55388 | ASJ INC. | 12,288 |
| AS18266 | Datacore Works Co.,Ltd. | 12,288 |
| AS18281 | Tokoname New-TV Corporation | 12,288 |
| AS18075 | Chupicom Hiroshima Corp. | 12,288 |
| AS38639 | NTT Communications Corporation | 11,264 |
| AS131926 | Cable Television Saiki Co. , Ltd. | 10,240 |
| AS59107 | Hachinohe Cable Television Co. | 10,240 |
| AS59126 | NCT CO.,LTD. | 10,240 |
| AS55385 | Digital Alliance Co.,Ltd. | 10,240 |
| AS131923 | Mihara Cable Television Ltd. | 10,240 |
| AS131931 | Aomori Cable TV Co., Ltd. | 10,240 |
| AS17689 | Hokuden Information Technology,Inc. | 9,728 |
| AS137445 | PF LINK SYSTEMS | 9,472 |
| AS132418 | 1 Rue Royale FR | 9,216 |
| AS7664 | HARENET INC. | 9,216 |
| AS45677 | Isahaya Cable Media Co.,Ltd | 9,216 |
| AS24279 | SENDAI CATV CO.,LTD. | 9,216 |
| AS23775 | Tamashima TV Inc. | 9,216 |
| AS37922 | Diversitymedia Co.,Ltd. | 9,216 |
| AS131911 | HONJYO CABLE VISION CO., LTD. | 9,216 |
| AS132726 | 5-3 Miyuki-cho | 8,704 |
| AS173 | Electrical Communications Laboratories | 8,704 |
| AS37908 | KIBI Cable Television Co.,Ltd. | 8,704 |
| AS17678 | Gunma Internet Co,.ltd | 8,704 |
| AS59117 | RBNET Co.,Ltd. | 8,704 |
| AS23620 | DMM.com LLC | 8,704 |
| AS18258 | Morgan Stanley Japan Limited | 8,448 |
| AS7665 | Okayama Prefectural Government | 8,192 |
| AS23619 | SMARTVALUE Co.,Ltd. | 8,192 |
| AS23632 | TVT Tsuyama Co.,Ltd. | 8,192 |
| AS131933 | TAMA Television Co., Ltd | 8,192 |
| AS7678 | Prox System Design Inc. | 8,192 |
| AS7686 | Technology Networks Inc. | 8,192 |
| AS59102 | GENES Co., Ltd. | 8,192 |
| AS59096 | Meiji Gakuin University | 8,192 |
| AS9358 | OPTAGE Inc. | 8,192 |
| AS17940 | CYBER LINKS Co.,Ltd. | 8,192 |
| AS59091 | Kanagawa Institute of Technology | 8,192 |
| AS23796 | NTT Service Evolution Laboratories | 8,192 |
| AS23804 | Nonprofit Organization Kitaura Hana Net | 8,192 |
| AS9618 | catv-tokushima | 8,192 |
| AS55899 | LEON TECHNOLOGY, Inc. | 8,192 |
| AS17694 | Deutsche Bank Group, Japan BGP connection | 8,192 |
| AS17518 | Shiojiri City | 8,192 |
| AS24336 | DIGITALBANK, Inc., Regional ISP in Japan | 8,192 |
| AS23618 | Ibara Broadcasting Company | 8,192 |
| AS4719 | Onkyo Corporation | 8,192 |
| AS17677 | ARTERIA Networks Corporation | 8,192 |
| AS4672 | IBM Japan, Ltd. | 8,192 |
| AS38043 | Sophia Reserch Institute, Ltd. | 8,192 |
| AS24284 | CyberAgent, Inc. | 7,936 |
| AS23827 | Azumino Network Community TV | 7,680 |
| AS17693 | YAMATO SYSTEM DEVELOPMENT CO., LTD. | 7,168 |
| AS17948 | EditNet, Incorporated | 7,168 |
| AS18264 | Seikei Eizo Network Inc. | 7,168 |
| AS23822 | HAGI Television Co., Ltd. | 7,168 |
| AS23829 | NTT NEOMEIT YAMAGUCHI CORPORATION | 6,912 |
| AS23818 | JETINTERNET Corporation | 6,912 |
| AS55376 | KCV communications CO.,LTD. | 6,656 |
| AS17505 | SOFTBANK MOBILE Corp. | 6,656 |
| AS24121 | Equinix Asia Pacific | 6,656 |
| AS45687 | Minamikyusyu CableTV Net Inc. | 6,656 |
| AS131893 | RICOH Company, Ltd. | 6,656 |
| AS24567 | QT Inc. | 6,400 |
| AS10015 | Cyber Wave Japan Co., Ltd. | 6,400 |
| AS63772 | extride inc. | 6,400 |
| AS38715 | Regional-IX ASN Tottori pref Japan. | 6,400 |
| AS136782 | Kirin Networks | 6,400 |
| AS18088 | Kyuden Infocom Company Inc | 6,144 |
| AS131949 | General Incorporated Foundation Aso Telework Center | 6,144 |
| AS23776 | NEC Corporation | 6,144 |
| AS7517 | ICOMT Inc. | 6,144 |
| AS23613 | New Media Tokushima Co.,ltd. | 6,144 |
| AS23641 | NS Computer Service Corporation | 6,144 |
| AS59094 | esu2 Corporation | 6,144 |
| AS23639 | NTT Bizlink, Inc. | 6,144 |
| AS17680 | SCSK Corporation | 6,144 |
| AS23631 | Sofu System, Inc | 6,144 |
| AS24512 | HAL Internet, Internet Service Provider, Tottori, Japan | 6,144 |
| AS24289 | Kagawa T.V Broadcast Network Co,.Ltd | 6,144 |
| AS9353 | MEDIAWARS co.,ltd. | 6,144 |
| AS24290 | Heart Network Co.,LTD | 6,144 |
| AS7521 | INTERNET MULTIFEED CO. | 5,632 |
| AS135401 | SAP | 5,632 |
| AS17937 | NIKKEI ADVANCED SYSTEMS INC. | 5,376 |
| AS7660 | Asia Pacific Advanced Network - Japan | 5,376 |
| AS58788 | Chiroro-Net Co.,Ltd. | 5,120 |
| AS131954 | Kawaguchiko cable television Inc | 5,120 |
| AS37916 | A.T.WORKS, Inc. | 5,120 |
| AS17685 | SQUARE ENIX CO., LTD. | 5,120 |
| AS138968 | rainbow network limited | 5,120 |
| AS18259 | NTT Communications Corporation | 5,120 |
| AS131960 | MBO holdings Inc. | 5,120 |
| AS38651 | Mixi,Inc. | 5,120 |
| AS24270 | CRC Solutions Corp., | 5,120 |
| AS37907 | DigiRock, Inc. | 5,120 |
| AS23614 | Kochi Systems Co., Ltd. | 5,120 |
| AS38638 | Ip Core Corporation | 5,120 |
| AS37914 | Advanced Software Technology and Management Research Institute of KYOTO | 4,608 |
| AS37897 | AXEL NETWORKS, INC. | 4,608 |
| AS131914 | data dock Inc. | 4,608 |
| AS55912 | University of Kochi | 4,352 |
| AS23836 | RELATION Co., Ltd. | 4,096 |
| AS17934 | National Institute of Information and Communications Technology | 4,096 |
| AS18086 | PFU LIMITED | 4,096 |
| AS18146 | Intec NetCore, Inc. | 4,096 |
| AS23794 | Club iT Corporation | 4,096 |
| AS9363 | FUJITSU KANSAI-CHUBU NET-TECH LIMITED | 4,096 |
| AS37898 | digitiminimi, inc. | 4,096 |
| AS23824 | Future Spirits Co.,Ltd. | 4,096 |
| AS18067 | Humeia Corporation | 4,096 |
| AS18263 | MEITETSUCOM Co., Ltd. | 4,096 |
| AS132119 | BNP Paribas | 4,096 |
| AS18140 | Yahoo Japan Corporation | 4,096 |
| AS7527 | Japan Internet Exchange Co., Ltd. | 4,096 |
| AS23798 | VR Techno Center,inc | 4,096 |
| AS23795 | Fitec Corp. | 4,096 |
| AS18383 | CAHI Corporation, | 4,096 |
| AS45690 | Tokushima Central TV Co.,Inc. | 4,096 |
| AS45672 | Koga Cable TV Co., Ltd. | 4,096 |
| AS55897 | SAKURA Internet Inc. | 4,096 |
| AS24264 | Kanazawa Institute of Technology | 4,096 |
| AS23773 | EKZM co.,ltd. | 4,096 |
| AS132095 | HEWLETT PACKARD-SHINSUNA COLO | 4,096 |
| AS18074 | First Riding Technology Inc. | 4,096 |
| AS18290 | Mimedia Corporation | 4,096 |
| AS17513 | Kids-way Corporation | 4,096 |
| AS17699 | ARTERIA Networks Corporation | 4,096 |
| AS17953 | BroadBand Security, Inc. | 4,096 |
| AS38652 | Ginzado Co.,Ltd. | 4,096 |
| AS18143 | Mitsubishi Research Institute DCS Co.,Ltd. | 4,096 |
| AS9990 | Nippon Information and Communication Corporation | 4,096 |
| AS38633 | Value Core Inc. | 4,096 |
| AS10016 | Minaminihon Information Processing Center Co Ltd | 4,096 |
| AS23967 | Produce On Demand Inc. Streaming Contents Delivery Service Tokyo | 4,096 |
| AS18289 | AT&T JAPAN KK | 4,096 |
| AS63782 | Omaezaki Cable Television Co.Ltd | 4,096 |
| AS18141 | HBA | 4,096 |
| AS45688 | The University of Tokyo Interfaculty Initiative in Information Studies | 3,584 |
| AS18127 | Ibaraki Prefectural Government | 3,584 |
| AS59116 | American International Group KK | 3,584 |
| AS59103 | SoftEther Corporation | 3,328 |
| AS4697 | Network Technology Laboratories, NIPPON TELEGRAPH AND TELEPHONE CORPORATION | 3,328 |
| AS18211 | Nomura India Services Pvt Ltd | 3,072 |
| AS45680 | DOVA Corporation | 3,072 |
| AS23616 | Hitachi Information Systems, Ltd. | 3,072 |
| AS2515 | Japan Network Information Center | 3,072 |
| AS23828 | Misaki Town | 3,072 |
| AS37915 | Wakayama Prefectural Government | 3,072 |
| AS58653 | UD Trucks Corporation, Volvo Information Technology Japan | 3,072 |
| AS58791 | GMO Internet,Inc | 3,072 |
| AS7663 | FUJIMIC INC. | 2,816 |
| AS55569 | Criteo APAC | 2,816 |
| AS55902 | TS-NET of TOSET, Inc. in Japan | 2,560 |
| AS55898 | Yahoo Japan Corporation | 2,560 |
| AS37900 | NTT Communications Corporation | 2,560 |
| AS37891 | JR TOKAI Information Systems Company | 2,560 |
| AS59118 | NRI SecureTechnologies, Ltd. | 2,560 |
| AS38627 | Baidu, Inc. | 2,560 |
| AS136407 | Virtustream Cloud Services Australia Pty Limited | 2,560 |
| AS18072 | NTT Communications, Corp. | 2,304 |
| AS131936 | UNIVERSAL MUSIC LLC | 2,304 |
| AS24229 | IX-layers, Inc. | 2,304 |
| AS45682 | Excite Japan Co., Ltd. | 2,304 |
| AS24286 | Weathernews,Inc. | 2,048 |
| AS133476 | First Innovation K.K. | 2,048 |
| AS55383 | YYY Group, Inc. | 2,048 |
| AS55393 | Midokura Japan K.K. | 2,048 |
| AS24250 | Miyagin Computer Service Co.,ltd | 2,048 |
| AS24253 | J-Stream Inc. | 2,048 |
| AS37912 | IPRIO Corporation. | 2,048 |
| AS58784 | Rissho University | 2,048 |
| AS18090 | IMS Corporation | 2,048 |
| AS59095 | ACCELIA | 2,048 |
| AS24262 | HAMANASU INFORMATION Co., Ltd. | 2,048 |
| AS59101 | mirai-bs corporation | 2,048 |
| AS59105 | Home NOC Operators Group | 2,048 |
| AS18272 | Benesse InfoShell Co.,Ltd | 2,048 |
| AS59123 | Kakaku.com, Inc. | 2,048 |
| AS59129 | LogicLinks, Inc. | 2,048 |
| AS63771 | Border Gateway Protocol Network Analysis Project | 2,048 |
| AS63774 | Kamoike.net LLP | 2,048 |
| AS63775 | YAKAGE CABLE TELEVISION | 2,048 |
| AS63783 | Chiba University of Commerce | 2,048 |
| AS131943 | Goto tv | 2,048 |
| AS38636 | DeNA, Co. Ltd. | 2,048 |
| AS7513 | Hitachi Systems, Ltd. | 2,048 |
| AS131929 | Yamanashi CATV Co,. ltd | 2,048 |
| AS131928 | Tottori Teletopia Co., Ltd. | 2,048 |
| AS38642 | Yoshizou XYZ Solutions | 2,048 |
| AS7530 | BroadBand Tower, Inc. | 2,048 |
| AS131907 | Iwami Cablevision Co.,Ltd. | 2,048 |
| AS24288 | Accutechs Co., Ltd. | 2,048 |
| AS23633 | Niigata Communication Service | 2,048 |
| AS45846 | Shiga area POP AS Number | 2,048 |
| AS209396 | Digital Ocean SRL | 2,048 |
| AS18076 | Institute of Advanced Media Arts and Sciences | 2,048 |
| AS133203 | SBI BITS Co., Ltd. | 1,792 |
| AS37889 | J-PARC Center | 1,792 |
| AS38643 | UNIADEX, LTD. | 1,792 |
| AS131957 | MicroAd, Inc. | 1,536 |
| AS18123 | INAOKI EDUCATIONAL INSTITUTION | 1,536 |
| AS23885 | Oracle Corporation | 1,536 |
| AS18139 | Hitachi Solutions, Ltd. | 1,536 |
| AS139076 | EnjoyVC Japan Corporation | 1,536 |
| AS24280 | Hitachi Systems, Ltd. | 1,536 |
| AS139468 | DC Communications Inc. | 1,536 |
| AS131950 | EnjoyVC Japan Corporation | 1,536 |
| AS17517 | APNIC ASN block | 1,280 |
| AS7674 | NTT Communications Corporation | 1,280 |
| AS7667 | KDDI R&D Laboratories, INC. | 1,280 |
| AS63773 | dual&Co. Inc. | 1,280 |
| AS38629 | NTT Communications Corporation | 1,280 |
| AS131912 | Cybozu,Inc. | 1,280 |
| AS58648 | AT-I, Inc. | 1,280 |
| AS131904 | Cyber Feel Inc. | 1,280 |
| AS137001 | OSOA Co.,LTD. | 1,280 |
| AS131939 | IPS INC | 1,024 |
| AS4774 | A-Bone by Internet Initiative Japan Inc. | 1,024 |
| AS136178 | FIL Japan Holdings K.K. | 1,024 |
| AS54415 | WIZ K.K. | 1,024 |
| AS24477 | Network Appliance ASIAPAC | 1,024 |
| AS55378 | QUICK Corp. | 1,024 |
| AS23826 | Daido University | 1,024 |
| AS4718 | Cyber Kansai Project | 1,024 |
| AS58645 | Miyagi Cable TV Co.,Ltd | 1,024 |
| AS23799 | National Defense Academy | 1,024 |
| AS55382 | Nagato city office | 1,024 |
| AS132504 | QUALITIA Co.,Ltd | 1,024 |
| AS18149 | Japan Registry Service Co., Ltd. | 1,024 |
| AS131155 | NTT Communications Corporation | 1,024 |
| AS45676 | SBI TradeWinTech Co.,Ltd. | 1,024 |
| AS131920 | WirelessGate, Inc. | 1,024 |
| AS131160 | Wire and Wireless Co.,Ltd. | 1,024 |
| AS55891 | WATCH TOWER BIBLE AND TRACT SOCIETY | 1,024 |
| AS38648 | F-REGI Co.,Ltd. | 1,024 |
| AS55894 | Who's Next | 1,024 |
| AS131961 | Dokkyo University | 1,024 |
| AS131896 | SSI Lab Inc. | 1,024 |
| AS18091 | Teikyo University | 1,024 |
| AS131910 | SORACOM. INC. | 1,024 |
| AS55901 | Sony Computer Entertainment Inc | 1,024 |
| AS55907 | GMO Internet,Inc | 1,024 |
| AS131901 | FIDESSA KK | 1,024 |
| AS131905 | Japan Registry Services Co., Ltd. | 1,024 |
| AS131945 | Sanntuu Corporation | 1,024 |
| AS138033 | BBIX, Inc | 1,024 |
| AS58792 | WirelessGate, Inc. | 1,024 |
| AS59093 | IMABARI CATV CORPORATION | 1,024 |
| AS63776 | Mercari, Inc. | 1,024 |
| AS137912 | Global Broadband K.K | 1,024 |
| AS59122 | Ranger-Systems Co., Ltd. | 1,024 |
| AS59097 | Okinawa Cross Head Co., Ltd. | 1,024 |
| AS59099 | BroadBand Tower, Inc. | 1,024 |
| AS58789 | DUNAMIS Co.,Ltd | 1,024 |
| AS24263 | HONDA MOTOR Co., Ltd. | 1,024 |
| AS59110 | BPS Inc. | 1,024 |
| AS10026 | Telstra Global Internet Services Network Blocks | 1,024 |
| AS58654 | BLESS Co.,Ltd. | 1,024 |
| AS7500 | WIDE Project | 1,024 |
| AS131942 | Gurunavi, Inc. | 1,024 |
| AS131941 | Entsu Co.,Ltd. | 1,024 |
| AS136769 | WingTecJapan G.K | 768 |
| AS131944 | KADOKAWA DWANGO CORPORATION | 768 |
| AS10209 | Japan HUB and Data Center | 768 |
| AS24257 | Japan Internet Exchange Co., Ltd. | 768 |
| AS131917 | Toshiba I.S. corp | 768 |
| AS55905 | TOP CLOUD Inc. | 768 |
| AS24283 | MIEDEN SYSTEM SOLUTION .LTD | 768 |
| AS55890 | Suntory Business Expert Limited | 768 |
| AS24291 | MITSUI & CO., LTD. | 768 |
| AS37893 | TradeWeb Europe Limited | 768 |
| AS37888 | HORIBA, Ltd. | 768 |
| AS206689 | Beeks Financial Cloud Ltd | 768 |
| AS38033 | internet content provider | 768 |
| AS24260 | Board of trusty: Kinjo-Gakuen | 512 |
| AS131909 | C&C OKINAWA | 512 |
| AS45139 | Microsoft Corp | 512 |
| AS55895 | N.S.Computer Service Co.,Ltd. | 512 |
| AS63779 | JUSTPLAYER Co.,Ltd. | 512 |
| AS55873 | Shiodome City Center 15F | 512 |
| AS131158 | Nara Institute of Science and Technology, National University Corporation | 512 |
| AS55396 | NRI SecureTechnologies, Ltd | 512 |
| AS132451 | 2142-1;KUKIOKA;MAEDA; | 512 |
| AS137462 | Rakuten Mobile Network, Inc. | 512 |
| AS139255 | U-NEXT Co.,Ltd. | 512 |
| AS45691 | Elliott Advisors Asia Limited | 512 |
| AS136779 | Schneider Electric Japan Ltd | 512 |
| AS136586 | InComm Japan K.K. | 512 |
| AS131946 | MUSASHINO UNIVERSITY E.F. | 512 |
| AS139345 | Hyve Managed Hosting Corp Inc | 512 |
| AS131940 | Nissho Electronics Corp. | 512 |
| AS63917 | 7-1, Udagawacho, | 512 |
| AS133782 | Elsevier Ltd | 512 |
| AS37982 | Kirin K.K. | 512 |
| AS63781 | Kobayashi Family Net LLP | 512 |
| AS139470 | OCX GROUP INC. | 512 |
| AS59120 | Tsukuba Internet Service Corporation | 512 |
| AS23761 | Xpedite Systems | 256 |
| AS23774 | Japan Registry Service Co., Ltd. | 256 |
| AS37906 | NetIRD Inc. | 256 |
| AS59124 | KYOTO Prefectural Government | 256 |
| AS23634 | WIDE Project | 256 |
| AS59113 | RICOH JAPAN Corporation | 256 |
| AS140244 | Brian Blevins | 256 |
| AS24256 | SOFTBANK Corp. | 256 |
| AS38658 | LIQUIDNET ASIA LIMITED | 256 |
| AS59115 | CYBERDYNE Inc. | 256 |
| AS131903 | Nomura Research Institute,Ltd. | 256 |
| AS58649 | GMO Internet,Inc | 256 |
| AS23833 | Marusan Securities Co., LTD. | 256 |
| AS59128 | Kyoto University Microcomputer Club | 256 |
| AS140868 | Ayao Takata | 256 |
| AS63780 | dual&Co. Inc. | 256 |
| AS9935 | AGNS Customer AS | 256 |
| AS133900 | Gilead Sciences, Inc. | 256 |
| AS55377 | Sadiatec Co., Ltd | 256 |
| AS131079 | INTERNET MULTIFEED CO. | 256 |
| AS55373 | Foundation for Biomedical Research and Innovation | 256 |
| AS24047 | Internet Systems Consortium, Inc. | 256 |
| AS131078 | KDDI R&D Laboratories, INC. | 256 |
| AS134827 | EY Business Initiative Co., Ltd | 256 |
| AS137008 | 1120 Shimokuzawa Chuo-ku Sagamihara-shi Kanagawa-ken | 256 |
| AS58651 | GMO Internet,Inc | 256 |
| AS137508 | Oriental Star Network Limited | 256 |
| AS4777 | Asia Pacific Network Information Centre | 256 |
| AS137819 | Beeks Financial Cloud (Japan) | 256 |
| AS23940 | THOMSON FINANCIAL. Financial Content provider.Tokyo | 256 |
| AS24252 | Japan Registry Service Co., Ltd. | 256 |
| AS131906 | Gap Japan K.K. | 256 |
| AS23642 | OBIS | 256 |
| AS45217 | Tora Trading Services Ltd. | 256 |
| AS24287 | National Institute of Informatics | 256 |
| AS55909 | Kochi National College of Technology | 256 |
| AS131913 | Niigata ken | 256 |
| AS138652 | Super Godzilla Communications GK | 256 |
| AS131951 | Suzuyo Shinwart Corporation | 256 |
| AS55949 | Technopro Holdings | 256 |
| AS131895 | Okinawa Institute of science and technology | 256 |
| AS131894 | UNIADEX, LTD. | 256 |
| AS138467 | Yahagi Network Solutions | 256 |
| AS37905 | Brastel Co.,Ltd | 256 |
| AS18131 | NTT Communications Corporation, Digital Transformation | 256 |
| AS58525 | Yahoo! Tokyo office | 256 |
| AS38644 | INTERNET MULTIFEED CO. | 256 |
| AS58786 | GMO Internet,Inc | 256 |
| AS135304 | VMWare Incorporation | 256 |
| AS59111 | Akita International University | 256 |
| AS45678 | ABN AMRO Clearing Tokyo Co., Ltd. | 256 |
| AS131924 | Kansai Airports | 256 |
| AS7680 | APNIC ASN block | 0 |
| AS7681 | APNIC ASN block | 0 |
| AS7683 | trunk inc. | 0 |
| AS7685 | APNIC ASN block | 0 |
| AS131900 | Directorz Co.,Ltd. | 0 |
| AS7688 | Nippon Internet Access Inc. | 0 |
| AS7689 | APNIC ASN block | 0 |
| AS131898 | Yahoo Japan Corporation | 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 |
| AS9352 | KuMaGaYaNet | 0 |
| AS9356 | APNIC ASN block | 0 |
| AS9361 | APNIC ASN block | 0 |
| AS9362 | APNIC ASN block | 0 |
| AS9364 | APNIC ASN block | 0 |
| AS131157 | IMS Corporation | 0 |
| AS9368 | APNIC ASN block | 0 |
| AS9369 | APNIC ASN block | 0 |
| AS131154 | NANO OPT Media, Inc. | 0 |
| AS131153 | KVH Co., Ltd. | 0 |
| AS9373 | APNIC ASN block | 0 |
| AS131152 | BBIX,Inc. | 0 |
| AS9376 | SMARTVALUE Co.,Ltd. | 0 |
| AS131106 | AS for DATAHOTEL, which is one of iDC in Japan, | 0 |
| AS9379 | APNIC ASN block | 0 |
| AS9380 | Community Network Center Inc. | 0 |
| AS131086 | Densan Co., Ltd. | 0 |
| AS131085 | Niigata Communication Service | 0 |
| AS9592 | SOFTBANK TELECOM Corp. | 0 |
| AS131084 | MKI Network Solutions, Ltd. | 0 |
| AS131082 | Japan Internet Exchange Co., Ltd. | 0 |
| AS131081 | Intec NetCore, Inc. | 0 |
| AS9598 | NTT Communications Corporation | 0 |
| AS9599 | EJWORKS CORPORATION | 0 |
| AS131080 | SAKURA Internet Inc. | 0 |
| AS9602 | APNIC ASN block | 0 |
| AS9603 | APNIC ASN block | 0 |
| AS131075 | Nippon Telegraph and Telephone Corporation PF Labs., | 0 |
| AS9606 | Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency | 0 |
| AS131074 | APNIC R&D Centre JP | 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 |
| AS131073 | Telstra Global Internet Services Network Blocks | 0 |
| AS1233 | National Space Development Agency | 0 |
| AS9616 | WIDE Project | 0 |
| AS10807 | Hitachi Business International, Ltd. | 0 |
| AS10124 | Amazon Data Services Japan KK | 0 |
| AS9620 | APNIC ASN block | 0 |
| AS10033 | iBasis Tokyo ICO | 0 |
| AS10018 | APNIC ASN block | 0 |
| AS10017 | APNIC ASN block | 0 |
| AS9992 | APNIC ASN block | 0 |
| AS9994 | APNIC ASN block | 0 |
| AS9995 | FirstServer, Inc. | 0 |
| AS9996 | KDDI Corporation | 0 |
| AS18151 | COMPUTER ENGINEERING & CONSULTING LTD. | 0 |
| AS55748 | 7-9-10 Nishi-Shinjuku | 0 |
| AS18262 | APNIC ASN block | 0 |
| AS10007 | SoftBank Corp. | 0 |
| AS18265 | ZEXIS CORPORATION | 0 |
| AS18269 | Kai Creates Inc. | 0 |
| AS18270 | Toin University of Yokohama | 0 |
| AS18138 | SAKURA Internet Inc. | 0 |
| AS18277 | Kurashiki University of Science and the Arts | 0 |
| AS18130 | APNIC ASN block | 0 |
| AS18279 | Bukkyo University | 0 |
| AS18280 | APNIC ASN block | 0 |
| AS18122 | Advanced Software Technology & Management Research Institute of KYOTO | 0 |
| AS18284 | Isetan Data Center Co., Ltd. | 0 |
| AS18285 | APNIC ASN block | 0 |
| AS18286 | Osaka City University | 0 |
| AS18288 | APNIC ASN block | 0 |
| AS213069 | PANYUAN HUANG | 0 |
| AS23612 | APNIC ASN block | 0 |
| AS18096 | APNIC ASN block | 0 |
| AS18095 | Reitaku University | 0 |
| AS18093 | APNIC ASN block | 0 |
| AS23621 | APNIC ASN block | 0 |
| AS23622 | Tsuru Gakuen | 0 |
| AS18089 | KDDI Corporation | 0 |
| AS23625 | TOKAI Communications Corporation | 0 |
| AS23626 | APNIC ASN block | 0 |
| AS18084 | Telstra Global Internet Services Network Blocks | 0 |
| AS23630 | CAC Inc. | 0 |
| AS18082 | Japan Agency for Local Authority Information Systems | 0 |
| AS18080 | Sopiafons Co.,Ltd | 0 |
| AS23636 | APNIC ASN block | 0 |
| AS18078 | APNIC ASN block | 0 |
| AS23638 | AMIXCOM Inc. | 0 |
| AS23640 | BBIX,Inc. | 0 |
| AS23643 | APNIC ASN block | 0 |
| AS23748 | Cat Networks K.K. | 0 |
| AS17977 | SINGTEL-JP | 0 |
| AS17952 | APNIC ASN block | 0 |
| AS17949 | Tokyo University of Technorogy | 0 |
| AS17945 | iTV Co,Ltd | 0 |
| AS17943 | Tokyo Denki University | 0 |
| AS17938 | SOFTBANK TELECOM Corp. | 0 |
| AS23787 | APNIC ASN block | 0 |
| AS17935 | APNIC ASN block | 0 |
| AS17933 | Nippon Telegraph and Telephone East Corporation | 0 |
| AS23792 | APNIC ASN block | 0 |
| AS17930 | APNIC ASN block | 0 |
| AS17818 | LIR SERVICES LLP | 0 |
| AS23797 | IXO | 0 |
| AS23800 | FUKUI-NCT | 0 |
| AS23801 | NTT Communications | 0 |
| AS23803 | The University of Tokyo | 0 |
| AS17795 | Netvein.co.jp | 0 |
| AS17704 | APNIC ASN block | 0 |
| AS23806 | Chupicom Hiroshima Corp. | 0 |
| AS17700 | APNIC ASN block | 0 |
| AS23809 | Televi Naruto .CO.,LTD | 0 |
| AS23810 | IC-NET Corporation | 0 |
| AS23811 | SIGA2009 | 0 |
| AS23812 | APNIC ASN block | 0 |
| AS23813 | SORUN Corporation | 0 |
| AS23814 | WIDE Project | 0 |
| AS23815 | Japan Internet Exchange Co., Ltd. | 0 |
| AS17697 | NTT PC Communications, Inc. | 0 |
| AS17696 | Okinawa Telecommunication Network Co.,Inc | 0 |
| AS23819 | APNIC ASN block | 0 |
| AS17695 | MLJS | 0 |
| AS10005 | APNIC ASN block | 0 |
| AS17692 | Kyocera Communication Systems Co., Ltd. | 0 |
| AS23830 | Gaitame.com Co.,Ltd. | 0 |
| AS23831 | NISIOWARI CATV CORPORATION | 0 |
| AS23835 | APNIC ASN block | 0 |
| AS23926 | JP DC | 0 |
| AS23929 | Ubiquitous Corp. Data Center Network. | 0 |
| AS24056 | Internet Data Centre | 0 |
| AS24062 | Kari Network Inc. | 0 |
| AS24114 | Equinix Asia Pacific | 0 |
| AS17690 | APNIC ASN block | 0 |
| AS17687 | National University Corporation Nagoya University | 0 |
| AS17679 | APNIC ASN block | 0 |
| AS24258 | APNIC ASN block | 0 |
| AS17674 | APNIC ASN block | 0 |
| AS17532 | Tokyo Polytechnic University | 0 |
| AS24265 | NTT Communications Corporation | 0 |
| AS24266 | APNIC ASN block | 0 |
| AS17528 | APNIC ASN block | 0 |
| AS24269 | APNIC ASN block | 0 |
| AS17527 | CHITA MEDIAS NETWORK INC. | 0 |
| AS24273 | CANON INC. | 0 |
| AS24274 | ACTELION-JP | 0 |
| AS17525 | APNIC ASN block | 0 |
| AS17524 | DS Networks | 0 |
| AS17522 | NIPPON TELEGRAPH AND TELEPHONE WEST CORPORATION | 0 |
| AS17521 | Kochi University of Technology | 0 |
| AS17520 | APNIC ASN block | 0 |
| AS24281 | APNIC ASN block | 0 |
| AS24285 | APNIC ASN block | 0 |
| AS24293 | FUJITSU SYSTEMS WEST LIMITED | 0 |
| AS24294 | APNIC ASN block | 0 |
| AS140889 | futa.moe | 0 |
| AS140701 | IDC Legend Corp. | 0 |
| AS140679 | Amatsukaze Network Lab | 0 |
| AS140642 | Wasabi Technologies Inc. | 0 |
| AS2498 | JPNIC-2Byte-ASBLOCK-AP | 0 |
| AS2499 | Japan Network Information Center | 0 |
| AS140600 | Kirin K.K. | 0 |
| AS140506 | Shimada Burazazu Technology LLC | 0 |
| AS2502 | The University of Tokyo | 0 |
| AS140501 | Itiviti Japan K.K. | 0 |
| AS140363 | Media Platform Lab Co., Ltd. | 0 |
| AS140306 | NTT Worldwide Telecommunications Corporation | 0 |
| AS2507 | JPNIC-2Byte-ASBLOCK-AP | 0 |
| AS139886 | QT Inc. | 0 |
| AS139358 | Kansuiun Co., Ltd | 0 |
| AS25168 | Mitsui & Co Europe PLC | 0 |
| AS2517 | JPNIC-2Byte-ASBLOCK-AP | 0 |
| AS139238 | VMOON | 0 |
| AS2521 | Yahoo Japan Corporation | 0 |
| AS139072 | Wework Singapore Pte. Ltd. | 0 |
| AS139058 | Acandwitf.com | 0 |
| AS2524 | EJWORKS CORPORATION | 0 |
| AS2525 | JPNIC-2Byte-ASBLOCK-AP | 0 |
| AS138992 | Blackhole Inc. | 0 |
| AS138986 | INAP Japan Tokyo Shiohama DC | 0 |
| AS2528 | JPNIC-2Byte-ASBLOCK-AP | 0 |
| AS138980 | xconnect | 0 |
| AS2713 | AT&T Jens Corporation | 0 |
| AS2915 | AT&T Jens Corporation | 0 |
| AS3391 | ASCIInet Corporation | 0 |
| AS138929 | Aisaka Sakura Network | 0 |
| AS3510 | Real World Computing Partnership | 0 |
| AS3775 | Global Network Solutions, IBM Japan, Ltd. | 0 |
| AS138695 | TOYO Internet Service Co., 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 |
| AS138686 | LI Zongqing | 0 |
| AS37904 | Softbank Mobile Corp. | 0 |
| AS37909 | Wakkanai Hokusei Gakuen University | 0 |
| AS138632 | Enmoe Network | 0 |
| AS37911 | JPNIC-2Byte-ASBLOCK-AP | 0 |
| AS138328 | Skadden, Arps, Slate, Meagher & Flom LLP | 0 |
| AS138190 | Aurura Solutions LTD | 0 |
| AS37921 | JPNIC-2Byte-ASBLOCK-AP | 0 |
| AS138181 | Hu's Tech LLC | 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 |
| AS37981 | TOYO Internet Service Co., Ltd. | 0 |
| AS37984 | Chikushi Jogakuen University, Non-transit AS. | 0 |
| AS38023 | Standard Nekomimi | 0 |
| AS138038 | Wolf Network Lab | 0 |
| AS38080 | Foresightwave INC. | 0 |
| AS38610 | APNIC R&D Centre JP | 0 |
| AS137875 | ShedDC | 0 |
| AS38632 | cross-connect niigata co.,ltd. | 0 |
| AS38637 | APNIC ASN block | 0 |
| AS38640 | SAKURA Internet Inc. | 0 |
| AS137407 | EIC INC | 0 |
| AS38645 | NTT Communications Corporation | 0 |
| AS38646 | APNIC ASN block | 0 |
| AS38649 | APNIC ASN block | 0 |
| AS38653 | JAPAN POST HOLDINGS Co., Ltd. | 0 |
| AS38655 | SaiNet Corporation | 0 |
| AS38895 | Amazon.com Tech Telecom | 0 |
| AS38910 | Transit AS Tokyo | 0 |
| AS4197 | Yahoo Japan Corporation | 0 |
| AS4251 | TWICS Co. Ltd. | 0 |
| AS45422 | SalesForce.com, Inc. | 0 |
| AS45436 | Green Net Co., Ltd. | 0 |
| AS45673 | Osaka Electro-Communication University | 0 |
| AS45674 | BIGLOBE Inc. | 0 |
| AS136796 | CORELINK JAPAN | 0 |
| AS45679 | Tatsumi, Tomo | 0 |
| AS45685 | Rikkyo Gakuin Rikkyo University | 0 |
| AS45686 | INTERNET MULTIFEED CO. | 0 |
| AS45689 | Convivial Net | 0 |
| AS4674 | APNIC ASN block | 0 |
| AS4676 | APNIC ASN block | 0 |
| AS136574 | Zheye Networks | 0 |
| AS136506 | LEON CO.LTD | 0 |
| AS4681 | Yahoo Japan Corporation | 0 |
| AS4682 | SoftBank Corp. | 0 |
| AS4683 | Phase One, Inc. | 0 |
| AS4684 | NTT PC Communications, Inc. | 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 |
| AS134606 | Satori Networks | 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 |
| AS134532 | ATT NBE Equinix Tokyo | 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 |
| AS4710 | Network Technology Laboratories, NIPPON TELEGRAPH AND TELEPHONE CORPORATION | 0 |
| AS134396 | AusRegistry Anycast system | 0 |
| AS4712 | JAPAN TOBACCO INC. | 0 |
| AS134351 | Leaseweb Japan K.K. | 0 |
| AS4716 | KDDI CORPORATION | 0 |
| AS4717 | WIDE Project | 0 |
| AS4720 | APNIC ASN block | 0 |
| AS133869 | SalesForce.com, Inc. | 0 |
| AS4722 | SoftBank Corp. | 0 |
| AS133795 | Choopa, LLC | 0 |
| AS4724 | APNIC ASN block | 0 |
| AS4727 | KYODO PRINTING BUSINESS SOLUTIONS CO.,LTD | 0 |
| AS4728 | APNIC ASN block | 0 |
| AS4732 | KDDI CORPORATION | 0 |
| AS4733 | APNIC ASN block | 0 |
| AS133027 | ZenLogic Internet Ltd | 0 |
| AS55372 | University of the Ryukyus | 0 |
| AS55375 | SmartInsight Inc. | 0 |
| AS132888 | Freak | 0 |
| AS132833 | Research Management Ltd. | 0 |
| AS132592 | Star Co,.Ltd. | 0 |
| AS132496 | SBI BITS Co., Ltd. | 0 |
| AS132373 | ASIAN-WEB-JP | 0 |
| AS55389 | Japan Network Enabler Corporation | 0 |
| AS132211 | FX Corporate LLC | 0 |
| AS132120 | Internet Systems Consortium | 0 |
| AS55817 | Nippon Telegraph and Telephone Corporation PF Labs | 0 |
| AS55889 | Equinix Jpapan Enterprise K.K. | 0 |
| AS55892 | DNPDC | 0 |
| AS55893 | NTT DATA CORPORATION | 0 |
| AS55896 | Videx Inc. | 0 |
| AS132024 | Rebyc Inc. | 0 |
| AS131969 | Suzuyo Shinwart Corporation | 0 |
| AS55903 | Tokyo Stock Exchange, Inc. | 0 |
| AS131968 | Mizuho Bank, Ltd | 0 |
| AS55906 | Ustream Asia, Inc. | 0 |
| AS55908 | Nomura Research Institute,Ltd. | 0 |
| AS131967 | Mizuho Bank, Ltd | 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 |
| AS131966 | I-NET CORP. | 0 |
| AS58535 | MarketPrizm BV | 0 |
| AS58646 | FreeBit Co.,Ltd. | 0 |
| AS131965 | Xserver Inc. | 0 |
| AS131964 | FAMILYNET JAPAN CORPORATION | 0 |
| AS131963 | MC Digital Realty, Inc. | 0 |
| AS131962 | KADOKAWA DWANGO CORPORATION | 0 |
| AS131956 | NTT Communications Corporation | 0 |
| AS59100 | Kochi Gakuen College | 0 |
| AS131955 | Kyoutou Cable Net Co Ltd | 0 |
| AS59106 | SKYLINKS INC. | 0 |
| AS131953 | NPO Yutopianet | 0 |
| AS59112 | Plus One marketing Ltd. | 0 |
| AS59114 | Recruit Co., Ltd. | 0 |
| AS59119 | HIDATAKAYAMA CABLE NETWORK INC. | 0 |
| AS131948 | FORNEXT Inc. | 0 |
| AS131947 | Net One Systems Co., Ltd. | 0 |
| AS59130 | NTT Communications Corporation | 0 |
| AS62184 | Michal Nowak | 0 |
| AS63524 | Equinix Asia Pacific | 0 |
| AS63777 | National Institutes of Natural Sciences National Astronomical Observatory of JAPAN | 0 |
| AS63778 | Border Gateway Protocol Network Analysis Project | 0 |
| AS63978 | CJL-JP | 0 |
| AS7488 | Yahoo Japan Corporation | 0 |
| AS7501 | APNIC ASN block | 0 |
| AS7508 | APNIC ASN block | 0 |
| AS7509 | Hokkaido University | 0 |
| AS7512 | WITH Network | 0 |
| AS131935 | Kamoike.net LLP | 0 |
| AS7515 | NTT Communications Corporation | 0 |
| AS7518 | APNIC ASN block | 0 |
| AS7519 | APNIC ASN block | 0 |
| AS7520 | APNIC ASN block | 0 |
| AS7523 | RICOH JAPAN Corporation | 0 |
| AS7525 | APNIC ASN block | 0 |
| AS7526 | Mitsubishi Electric Information Network Corporation | 0 |
| AS7531 | GenomeNet Project | 0 |
| AS7661 | Network Organization for Research and Technologyin Hokkaido | 0 |
| AS7662 | APNIC ASN block | 0 |
| AS7666 | Mitsubishi Corporation | 0 |
| AS7669 | DIGITAL TECHNOLOGIES CORPORATION | 0 |
| AS7673 | ejworks corporation | 0 |
| AS131908 | INTEC 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.