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. | 44,946,688 |
| AS4713 | NTT Communications Corporation | 28,791,296 |
| AS2516 | KDDI CORPORATION | 18,967,296 |
| AS2907 | Research Organization of Information and Systems, National Institute of Informatics | 8,297,024 |
| AS17506 | UCOM Corp. | 5,447,680 |
| AS9824 | Jupiter Telecommunication Co. Ltd | 4,745,216 |
| AS2497 | Internet Initiative Japan Inc. | 3,854,592 |
| AS2518 | BIGLOBE Inc. | 3,675,136 |
| AS2510 | FUJITSU LIMITED | 3,269,632 |
| AS38895 | Amazon.com, Inc. | 3,073,792 |
| AS17511 | K-Opticom Corporation | 3,026,944 |
| AS2527 | So-net Entertainment Corporation | 2,976,768 |
| AS9605 | NTT DOCOMO, INC. | 2,322,432 |
| AS4725 | SoftBank Mobile Corp. | 2,263,040 |
| AS10013 | FreeBit Co.,Ltd. | 2,113,280 |
| AS2514 | NTT PC Communications, Inc. | 1,867,264 |
| AS9595 | NTT-ME Corporation | 1,644,544 |
| AS2519 | ARTERIA Networks Corporation | 1,529,600 |
| AS37903 | Ymobile Corporation | 1,491,968 |
| AS10010 | TOKAI Communications Corporation | 1,454,080 |
| AS18126 | Chubu Telecommunications Company, Inc. | 1,299,456 |
| AS9617 | Jupiter Telecommunications Co., Ltd. | 1,163,264 |
| AS4694 | Yahoo Japan Corporation | 980,992 |
| AS4685 | Asahi Net | 839,680 |
| AS7679 | Kyushu Telecommunication Network Co.,Inc. | 695,808 |
| AS4721 | Jupiter Telecommunications Co., Ltd. | 631,808 |
| AS7671 | NTT SmartConnect Corporation | 453,632 |
| AS9365 | its communications Inc. | 404,480 |
| AS7522 | STNet, Incorporated | 365,568 |
| AS18081 | Kintetsu Cable Network Co., Ltd. | 360,448 |
| AS9370 | SAKURA Internet Inc. | 339,456 |
| AS9371 | SAKURA Internet Inc. | 331,520 |
| AS2500 | WIDE Project | 330,240 |
| AS4704 | Rakuten Communications Corp. | 303,104 |
| AS2506 | NTT WEST CHUGOKU CORPORATION | 279,808 |
| AS7684 | SAKURA Internet Inc. | 273,152 |
| AS4673 | NTT DATA CORPORATION | 258,048 |
| AS7524 | ITEC HANKYU HANSHIN CO.,LTD. | 249,856 |
| AS9597 | KDDI Web Communications Inc. | 211,200 |
| AS10021 | KVH Co.,Ltd | 210,688 |
| AS9354 | Community Network Center Inc. | 208,384 |
| AS7506 | GMO Internet,Inc | 207,360 |
| AS18144 | Energia Communications,Inc. | 200,704 |
| AS9619 | Sony Global Solutions Inc. | 200,704 |
| AS2501 | The University of Tokyo | 200,704 |
| AS23793 | National Institute of Advanced Industrial Science and Technology | 199,936 |
| AS7687 | TOYOTA DIGITAL CRUISE.INCORPORATED | 194,560 |
| AS7514 | Computer Engineering & Consulting, Ltd. | 192,512 |
| AS2554 | Yahoo Japan Corporation | 187,648 |
| AS9374 | EDION Corporation | 165,888 |
| AS17941 | Bit-isle Co.,Ltd. | 162,816 |
| AS17698 | COMMUNITY NETWORK CENTER INCORPORATED. | 152,576 |
| AS9351 | ZTV CO.,LTD | 143,360 |
| AS4686 | BEKKOAME INTERNET INC. | 142,336 |
| AS7670 | Energia Communications, Inc. | 142,336 |
| AS18077 | Yamaguchi Cable Vision Co.,Ltd | 135,680 |
| AS17516 | NTT COMWARE CORPORATION | 132,096 |
| AS37917 | University of Tsukuba | 132,096 |
| AS2504 | Kyoto University | 132,096 |
| AS17687 | National University Corporation Nagoya University | 131,328 |
| AS24297 | Osaka Prefecture University | 131,072 |
| AS17943 | Tokyo Denki University | 131,072 |
| AS38635 | Keio University | 131,072 |
| AS4729 | Japan Atomic Energy Agency | 131,072 |
| AS17529 | COMMUNITY NETWORK CENTER INC. | 126,976 |
| AS24572 | Yahoo Japan. | 119,808 |
| AS7516 | Tohoku Intelligent Telecommunication Co., Inc. | 119,040 |
| AS3488 | Information Systems Department, Japan Aerospace Exploration Agency | 115,200 |
| AS17707 | AS for DATAHOTEL, which is one of iDC in Japan, | 110,592 |
| AS45684 | Kyocera Communication Systems Co., Ltd. | 102,400 |
| AS59108 | KATCH NETWORK INC. | 98,304 |
| AS4678 | Canon IT Solutions Inc. | 95,232 |
| AS4675 | UNIADEX, LTD. | 94,208 |
| AS9993 | ITOCHU Techno-Solutions Corporation | 91,136 |
| AS18097 | D.C.N. Corporation | 89,600 |
| AS24282 | KAGOYA JAPAN Inc. | 89,344 |
| AS9600 | So-net Corporation | 82,944 |
| AS17514 | Otsuka Corp. | 79,872 |
| AS9614 | Oita Cable Telecom Co,ltd. | 74,752 |
| 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 |
| AS7690 | Mirai Communication Network Inc. | 72,192 |
| AS9615 | TOYOHASHI CABLE NETWORK INC. | 71,680 |
| AS17509 | STARNET Co.,Ltd. | 71,680 |
| AS23820 | Rakuten,Inc. | 71,680 |
| AS17673 | MITSUI KNOWLEDGE INDUSTRY CO., LTD. | 71,680 |
| AS10000 | Nagasaki Cable Media Inc. | 69,632 |
| AS24276 | Jupiter Telecommunications Co., Ltd. | 69,632 |
| AS17947 | SAKURA KCS Corporation. | 69,632 |
| AS18271 | Sojitz Systems Corporation | 69,632 |
| AS18260 | EHIME CATV CO.,LTD. | 69,632 |
| AS18082 | Japan Agency for Local Authority Information Systems | 69,632 |
| AS37918 | Nippon Telegraph and Telephone Corporation | 69,376 |
| AS23791 | LCV Corporation | 68,608 |
| AS131921 | GMO CLOUD K.K. | 68,352 |
| AS23720 | Rakuten Communications K.K. | 68,096 |
| AS55390 | Tokyo University of Science | 67,584 |
| AS17961 | mitene internet co., ltd. | 67,584 |
| AS23816 | Yahoo Japan Corporation | 67,584 |
| AS2526 | E-Platform Promotion Office. IT Services Division. HITACHI,Ltd. | 67,584 |
| AS4730 | Osaka University | 67,584 |
| AS24261 | Mie University | 66,304 |
| AS37920 | Shiga University | 66,048 |
| AS2513 | Japan Science and Technology Agency | 65,792 |
| AS17932 | Japan Advanced Institute of Science and Technology | 65,792 |
| AS17944 | Japan Weather Association | 65,792 |
| AS23623 | Chuo University | 65,536 |
| AS18125 | Ministry of Agriculture, Forestry and Fisheries Research Network | 65,536 |
| AS24254 | Kyoto Sangyo University | 65,536 |
| AS17510 | INFORMATION SERVICES INTERNATIONAL - DENTSU, LTD. | 65,536 |
| AS17512 | Japan Airlines International Co., Ltd. | 65,536 |
| AS131919 | Meiji University | 65,536 |
| AS18268 | Naganoken Kyodou Densan Co.Ltd. | 65,536 |
| AS24268 | National University Corporation Shizuoka University | 65,536 |
| AS9355 | National Institute of Information and Communications Technology | 65,536 |
| AS55904 | KOGAKUIN University | 65,536 |
| AS131897 | National University Corporation ,Ehime University | 65,536 |
| AS17946 | Gifu University | 65,536 |
| AS24275 | TOTO LTD. | 65,536 |
| AS38641 | Osaka Sangyo University | 65,536 |
| AS55379 | Hosei University | 65,536 |
| AS37919 | SEGA Holdings Co., Ltd. | 65,536 |
| AS9357 | NRI SecureTechnologies, Ltd. | 65,536 |
| AS24273 | CANON INC. | 65,536 |
| AS18069 | SOFTBANK TECHNOLOGY CORP. | 65,536 |
| AS18124 | Okayama University of Science | 65,536 |
| AS9991 | Hiroshima Shudo University | 65,536 |
| AS18087 | Toyo University | 65,536 |
| AS18128 | RIKEN(Physical and Chemical Research Institute) | 65,536 |
| AS10014 | Nihon University | 65,536 |
| AS9591 | National Institute for Fusion Science | 65,536 |
| AS4677 | Marubeni OKI Network Solutions Inc. | 65,536 |
| AS17523 | Aoyama Gakuin University | 65,536 |
| AS9366 | SOLITON-NET | 65,536 |
| AS23807 | Ritsumeikan University | 65,536 |
| AS37910 | Chubu University | 65,536 |
| AS23779 | NTT Communications Corporation | 65,536 |
| AS9593 | Nikkei Inc. | 65,536 |
| AS131159 | Yamagata University | 65,536 |
| AS24248 | Wakayama University | 65,536 |
| AS18148 | Fukuoka University | 65,536 |
| AS17960 | University of the Ryukyus | 65,536 |
| AS59104 | Soka University | 65,536 |
| AS17701 | Seinan Gakuin University | 65,536 |
| AS23615 | University of Shizuoka | 65,536 |
| AS2508 | Kyushu University | 65,536 |
| AS17956 | WASEDA University | 65,536 |
| AS38654 | INES Corporation. | 65,536 |
| AS58785 | Tohoku Gakuin University | 65,536 |
| AS9367 | Tokyo Institute of Technology | 65,536 |
| AS55380 | Kanazawa University | 65,536 |
| AS58652 | Kochi University | 65,536 |
| AS18276 | Kansai University | 65,280 |
| 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. | 57,600 |
| AS4723 | Dolphin | 57,344 |
| AS17675 | Internap Japan Co.,LTD. | 53,504 |
| AS59127 | Newmedia Corporation | 51,200 |
| AS4680 | Mitsubishi Electric Information Network Corporation | 50,176 |
| AS55387 | Japan Communication Inc. | 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 |
| AS9378 | Jupiter Telecommunications Co., Ltd. | 45,056 |
| AS23785 | SUN FIELD INTERNET LIMITED | 45,056 |
| AS4693 | CSK-IT MANAGEMENT CORPORATION | 45,056 |
| AS23637 | Bit-isle Co.,Ltd. | 45,056 |
| AS2512 | TCP Inc. | 43,264 |
| AS18092 | Kyushu Tele Communications Company | 43,008 |
| AS18136 | Jupiter Telecommunications Co., Ltd. | 43,008 |
| AS23790 | Jupiter Telecommunications Co., Ltd. | 43,008 |
| AS38631 | LINE Corporation | 42,752 |
| AS2511 | NTT | 41,728 |
| AS24295 | Internap Japan Co.,Ltd. | 40,960 |
| AS7676 | TAM-Internet Service (T.A.M Co., Ltd.) | 39,936 |
| AS9622 | Kurashiki Cable TV | 38,912 |
| AS17530 | Nihon Network Service Co, .Ltd. | 38,912 |
| AS9998 | ISAO Corporation | 36,864 |
| AS18135 | BTV Cable Television CO.,LTD. | 36,864 |
| AS10001 | Mics Network Corporation | 36,864 |
| AS38628 | HIMEJI CABLE TELEVISION CORPORATION | 35,840 |
| AS7682 | HOKKAIDO TELECOMMUNICATIONS NETWORK Co., Inc. | 35,840 |
| AS38462 | Osaki Computer Engineering Co.Ltd | 35,328 |
| AS17955 | Densan Co., Ltd. | 34,816 |
| AS10015 | Cyber Wave Japan Co., Ltd. | 34,560 |
| AS10019 | Matsusaka Cable-TV Station Inc. | 33,792 |
| AS58793 | NIFTY Corporation | 33,024 |
| AS59121 | Asahi Kasei Networks Corporation | 33,024 |
| AS18150 | Sagashimbun Co., Ltd. | 32,768 |
| AS59092 | kronos.Co.,Ltd. | 32,512 |
| AS18134 | Jupiter Telecommunications Co., Ltd. | 29,696 |
| AS10004 | JIN Office Service Inc. | 29,184 |
| AS7668 | Hokuriku Telecommunication Network Co. | 29,184 |
| AS10003 | Ogaki Cable Television Co.,Inc. | 28,672 |
| AS23783 | Cable Networks Akita Co.,ltd. | 28,416 |
| AS18068 | Dream Wave Shizuoka Co. Ltd. | 28,160 |
| AS9607 | BroadBand Tower, Inc. | 27,136 |
| AS23629 | Obihiro City Cable Co.,Ltd. | 27,136 |
| AS55394 | GREE, Inc. | 26,624 |
| AS17504 | NRI Netcom, Ltd. | 26,624 |
| AS24255 | Tannan Cable Television Corporation | 25,600 |
| AS9601 | Niigata Communication Service | 25,600 |
| AS17524 | DS Networks | 25,088 |
| AS17950 | SaiNet | 24,832 |
| AS10002 | IGAUENO CABLE TELEVISION CO.,LTD | 24,576 |
| AS10012 | Rakuten Communications Corp. | 24,576 |
| AS56291 | Ace, Inc. | 24,576 |
| AS23661 | CLARA ONLINE, Inc. | 24,576 |
| AS23788 | Jupiter Telecommunications Co., Ltd. | 24,576 |
| AS18121 | Ishikawa Computer Center Co.,LTD. | 24,064 |
| AS17682 | 296 BROAD NET Com Inc | 23,552 |
| AS23786 | San-in Cable Vision CO.,LTD | 22,528 |
| AS24249 | JWAY co., Ltd. | 22,528 |
| AS23624 | Chukai Television Co,.Ltd. | 22,528 |
| 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 |
| AS132827 | GATEWAY INC | 20,736 |
| AS24278 | USEN CORPORATION | 20,480 |
| AS18267 | Doshisha University | 20,480 |
| AS9999 | AT TOKYO Corporation | 20,480 |
| AS4695 | Energia Communications, Inc. | 20,480 |
| AS45675 | Jupiter Telecommunications Co., Ltd. | 20,480 |
| AS18283 | Fureai Channel Inc. | 19,456 |
| AS17957 | SOUTH TOKYO CABLETELEVISION | 19,456 |
| AS18129 | OKAYAMA NETWORK INC. | 19,456 |
| AS9466 | UUNET Japan Limited | 19,240 |
| AS23784 | SQUARE ENIX CO., LTD. | 18,432 |
| AS131915 | Hamamatsu Cable Television .Inc | 18,432 |
| AS131916 | Tokyo Bay Network Co.,Ltd. | 18,432 |
| AS24277 | Okinawa Cable Network Co.,Ltd | 18,432 |
| AS18274 | Utsunomiya Cable TV Corporation | 18,432 |
| AS4711 | INTEC Inc. | 17,408 |
| AS9997 | Suzuka Cable Co.,Ltd | 17,408 |
| AS18094 | Tokyo Cable Network.,INC | 17,408 |
| AS17958 | Kasaoka Cable Vision Co,LTD. | 17,408 |
| AS23627 | UEDA CABLE VISION CO.,LTD. | 17,408 |
| AS18071 | Panasonic Corporation Corporate Information Systems Company | 16,704 |
| AS18085 | Fujitsu Systems Applications & Support Limited | 16,384 |
| AS7513 | Hitachi Systems, Ltd. | 16,384 |
| AS55384 | Japan Advanced Institute of Science and Technology | 16,384 |
| AS17683 | Wingtechnology Communications, Inc. | 16,384 |
| AS23780 | CTB Media Inc. | 16,384 |
| AS7503 | Air Internet Service Co.,Ltd. | 16,384 |
| AS9618 | catv-tokushima | 16,384 |
| AS23635 | CRCCMedia Co.,ltd | 16,384 |
| AS55910 | Shibaura Institute of Technology | 16,384 |
| AS7505 | Fujitsu Systems Applications & Support Limited | 16,384 |
| AS24271 | Iruma CATV co. | 16,384 |
| AS7523 | RICOH JAPAN Corporation | 15,872 |
| AS23818 | JETINTERNET Corporation | 15,616 |
| AS23778 | IMIZU CABLE NETWORK CO.,LTD. | 15,360 |
| AS131899 | DIG Inc. | 15,360 |
| AS24259 | kanuma cable television Corporation | 14,336 |
| AS17936 | Cable Television Kani Co.,Inc. | 14,336 |
| AS17931 | Netforest,Inc. | 14,336 |
| AS10011 | advanscope.inc | 14,336 |
| AS9604 | FUJI SOFT INCORPORATED | 14,336 |
| AS23805 | Watarase Television Co.,Ltd | 14,336 |
| AS23808 | TOSHIMA CABLE NETWORK CO.,LTD | 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 |
| AS63997 | Tsukaeru.net KK | 12,544 |
| AS18266 | Datacore Works Co.,Ltd. | 12,288 |
| AS23632 | TVT Tsuyama Co.,Ltd. | 12,288 |
| AS23817 | FUJITSU SHIKOKU Systems Limited. | 12,288 |
| AS23628 | Academic newtown Community Cable Service | 12,288 |
| AS18142 | KISTEM Co., Ltd. | 12,288 |
| AS55388 | ASJ INC. | 12,288 |
| AS18281 | Tokoname New-TV Corporation | 12,288 |
| AS18075 | Chupicom Hiroshima Corp. | 12,288 |
| AS38639 | NTT Communications Corporation | 11,264 |
| AS23620 | DooGA Co., Ltd. | 11,264 |
| AS17696 | KDDI Okinawa Srevice CO. | 10,240 |
| AS55385 | Digital Alliance 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 |
| AS23775 | Tamashima TV Inc. | 9,216 |
| AS7664 | Sanyo Computer Corp.Inc | 9,216 |
| AS9621 | Okinawa Telecommunication Network Co.,Inc | 9,216 |
| AS132418 | Outscale SAS | 9,216 |
| AS55899 | LEON TECHNOLOGY, Inc. | 9,216 |
| AS37922 | Cable TV Yamagata Co.,Ltd. | 9,216 |
| AS24279 | SENDAI CATV CO.,LTD. | 9,216 |
| AS58650 | Warabi Cable Vision Co., Ltd. | 8,704 |
| AS173 | Electrical Communications Laboratories | 8,704 |
| AS132726 | SanyuNet corp. | 8,704 |
| AS59109 | Hitachi,Ltd., Cloud services Division | 8,704 |
| AS17678 | Gunma Internet Co,.ltd | 8,704 |
| AS59091 | Kanagawa Institute of Technology | 8,192 |
| AS7521 | INTERNET MULTIFEED CO. | 8,192 |
| AS2523 | JSPS 163rd Committee on Internet Technology | 8,192 |
| AS38043 | Sophia Reserch Institute, Ltd. | 8,192 |
| AS17677 | UCOM Corporation | 8,192 |
| AS7665 | Okayama Prefectural Government | 8,192 |
| AS23619 | SMARTVALUE Co.,Ltd. | 8,192 |
| AS9352 | KuMaGaYaNet | 8,192 |
| AS4719 | ONKYO ENTERTAINMENT TECHNOLOGY CORPORATION | 8,192 |
| AS24336 | DIGITALBANK, Inc., Regional ISP in Japan | 8,192 |
| AS17940 | CYBER LINKS Co.,Ltd. | 8,192 |
| AS17694 | Deutsche Bank Group, Japan BGP connection | 8,192 |
| AS4672 | IBM Japan, Ltd. | 8,192 |
| AS7678 | Prox System Design Inc. | 8,192 |
| AS23796 | NTT Service Evolution Laboratories | 8,192 |
| AS23804 | Nonprofit Organization Kitaura Hana Net | 8,192 |
| AS37908 | KIBI Cable Television Co.,Ltd. | 8,192 |
| AS59096 | Meiji Gakuin University | 8,192 |
| AS7686 | Technology Networks Inc. | 8,192 |
| AS7663 | FUJIMIC INC. | 8,192 |
| AS9358 | Kanden Information Systems Company,Incorporated | 8,192 |
| AS17518 | Shiojiri City | 8,192 |
| AS17661 | NHN Techorus Corp. | 7,424 |
| AS45688 | The University of Tokyo Interfaculty Initiative in Information Studies | 7,176 |
| AS18264 | Seikei Eizo Network Inc. | 7,168 |
| AS59094 | esu2 Corporation | 7,168 |
| AS17948 | EditNet, Incorporated | 7,168 |
| AS17693 | YAMATO SYSTEM DEVELOPMENT CO., LTD. | 7,168 |
| AS131900 | Directorz Co.,Ltd. | 7,168 |
| AS23618 | Ibara Broadcasting Company | 7,168 |
| AS45677 | Isahaya Cable Television Co.,Inc. | 7,168 |
| AS23829 | NTT NEOMEIT YAMAGUCHI CORPORATION | 6,912 |
| AS17505 | SOFTBANK MOBILE Corp. | 6,656 |
| AS38715 | Regional-IX ASN Tottori pref Japan. | 6,400 |
| AS18088 | Kyuden Infocom Company Inc | 6,144 |
| AS24512 | HAL Internet, Internet Service Provider, Tottori, Japan | 6,144 |
| AS23827 | Azumino Network Community TV | 6,144 |
| AS9353 | MEDIAWARS co.,ltd. | 6,144 |
| AS23641 | NS Computer Service Corporation | 6,144 |
| AS23822 | Hagi Cable Network Co., Ltd | 6,144 |
| AS23639 | NTT Bizlink, Inc. | 6,144 |
| AS23631 | Sofu System, Inc | 6,144 |
| AS17680 | SCSK Corporation | 6,144 |
| AS7517 | ICOMT Inc. | 6,144 |
| AS23613 | New Media Tokushima Co.,ltd. | 6,144 |
| AS24290 | Heart Network Co.,LTD | 6,144 |
| AS23776 | NEC Nexsolutions,Ltd. | 6,144 |
| AS131893 | RICOH Company, Ltd. | 5,888 |
| AS37914 | Advanced Software Technology & Mechatronics Research Institute of KYOTO | 5,632 |
| AS135401 | SAP | 5,632 |
| AS7660 | Asia Pacific Advanced Network - Japan | 5,376 |
| AS17937 | NIKKEI ADVANCED SYSTEMS INC. | 5,376 |
| AS45687 | Minamikyusyu CableTV Net Inc. | 5,120 |
| AS24289 | Kagawa T.V Broadcast Network Co,.Ltd | 5,120 |
| AS55376 | KCV communications CO.,LTD. | 5,120 |
| AS37916 | A.T.WORKS,Inc. | 5,120 |
| AS131911 | HONJYO CABLE VISION CO., LTD. | 5,120 |
| AS23614 | Kochi Systems Co., Ltd. | 5,120 |
| AS58788 | Chiroro-Net Co.,Ltd. | 5,120 |
| AS37907 | DigiRock, Inc. | 5,120 |
| AS7529 | NetIRD Inc. | 5,120 |
| AS38638 | Ip Core Corporation | 4,864 |
| AS37897 | Lexues Inc. | 4,608 |
| AS55912 | University of Kochi | 4,352 |
| AS132095 | HEWLETT PACKARD-SHINSUNA COLO | 4,352 |
| AS18086 | PFU LIMITED | 4,096 |
| AS23773 | EKZM co.,ltd. | 4,096 |
| AS23794 | Club iT Corporation | 4,096 |
| AS18138 | HI-NET INC. | 4,096 |
| AS18263 | MEITETSUCOM Co., Ltd. | 4,096 |
| AS24264 | Kanazawa Institute of Technology | 4,096 |
| AS18067 | Humeia Corporation | 4,096 |
| AS55393 | Midokura Co., Ltd | 4,096 |
| AS23801 | NTT Communications | 4,096 |
| AS23967 | Produce On Demand Inc. Streaming Contents Delivery Service Tokyo | 4,096 |
| AS18289 | AT&T JAPAN KK | 4,096 |
| AS23824 | Future Spirits Co.,Ltd. | 4,096 |
| AS7527 | Japan Internet Exchange Co., Ltd. | 4,096 |
| AS17688 | ShineOn LTD | 4,096 |
| AS38652 | Ginzado Co.,Ltd. | 4,096 |
| AS9990 | Nippon Information and Communication Corporation | 4,096 |
| AS23795 | Fitec Corp. | 4,096 |
| AS59116 | American International Group KK | 4,096 |
| AS18072 | NTT Communications, Corp. | 4,096 |
| AS17934 | National Institute of Information and Communications Technology | 4,096 |
| AS18140 | Yahoo Japan Corporation | 4,096 |
| AS17685 | SQUARE ENIX CO., LTD. | 4,096 |
| AS37898 | digitiminimi, inc. | 4,096 |
| AS18383 | CAHI Corporation | 4,096 |
| AS132119 | BNP Paribas | 4,096 |
| AS38651 | Mixi,Inc. | 4,096 |
| AS18146 | Intec NetCore, Inc. | 4,096 |
| AS18141 | HBA | 4,096 |
| AS24293 | FUJITSU SYSTEMS WEST LIMITED | 4,096 |
| AS45690 | Tokushima Central TV Co.,Inc. | 4,096 |
| AS23836 | RELATION Co., Ltd. | 4,096 |
| AS18290 | Mimedia Corporation | 4,096 |
| AS9363 | FUJITSU KANSAI-CHUBU NET-TECH LIMITED | 4,096 |
| AS10016 | Minaminihon Information Processing Center Co Ltd | 4,096 |
| AS24470 | MAIS | 4,096 |
| AS18074 | First Riding Technology Inc. | 4,096 |
| AS18265 | ZEXIS CORPORATION | 4,096 |
| AS18259 | NTT Communications Corporation | 4,096 |
| AS18143 | Mitsubishi Research Institute DCS Co.,Ltd. | 4,096 |
| AS55889 | Bit-isle | 4,096 |
| AS17513 | Kids-way Corporation | 4,096 |
| AS45672 | River City CableTV Co.Ltd. | 4,096 |
| AS17699 | MEDiA K.K. | 4,096 |
| AS23798 | VR Techno Center,inc | 4,096 |
| AS17953 | BroadBand Security, Inc. | 4,096 |
| AS59102 | GENES Co., Ltd. | 4,096 |
| AS18127 | Ibaraki Prefectural Government | 3,584 |
| AS45680 | DOVA Corporation | 3,328 |
| AS37900 | NTT Communications Corporation | 3,328 |
| AS37984 | Chikushi Jogakuen University, Non-transit AS. | 3,328 |
| AS55902 | TS-NET of TOSET, Inc. in Japan | 3,328 |
| AS37915 | Wakayama Prefectural Government | 3,072 |
| AS23616 | Hitachi Information Systems, Ltd. | 3,072 |
| AS55391 | INTERNET MULTIFEED CO. | 3,072 |
| AS58791 | GMO Internet,Inc | 3,072 |
| AS38633 | Value Core Inc. | 3,072 |
| AS45846 | Shiga area POP AS Number | 3,072 |
| AS24270 | CRC Solutions Corp., | 3,072 |
| AS58653 | UD Trucks Corporation, Volvo Information Technology Japan | 3,072 |
| AS55392 | INTERNET MULTIFEED CO. | 3,072 |
| AS55569 | Criteo Corp | 3,072 |
| AS18211 | Nomura India Services Pvt Ltd | 3,072 |
| AS23828 | Misaki Town | 3,072 |
| AS38627 | Baidu, Inc. | 2,816 |
| AS2515 | Japan Network Information Center | 2,816 |
| AS59103 | SoftEther Corporation | 2,816 |
| AS136407 | Virtustream Cloud Services Australia Pty Limited | 2,560 |
| AS59118 | NRI SecureTechnologies, Ltd. | 2,560 |
| AS55898 | Yahoo Japan Corporation | 2,560 |
| AS24257 | Japan Internet Exchange Co., Ltd. | 2,560 |
| AS37891 | JR TOKAI Information Systems Company | 2,560 |
| AS136439 | Cat Networks K.K. | 2,560 |
| AS24229 | IX-layers, Inc., Regional IXP in Japan, regional ISP | 2,304 |
| AS24121 | Equinix Asia Pacific | 2,304 |
| AS45682 | Excite Japan Co., Ltd. | 2,304 |
| AS24288 | Accutechs Co., Ltd. | 2,048 |
| AS38634 | DWANGO Co.,Ltd. | 2,048 |
| AS7530 | BroadBand Tower, Inc. | 2,048 |
| AS23832 | AS23832 | 2,048 |
| AS18272 | Benesse InfoShell Co.,Ltd | 2,048 |
| AS24253 | J-Stream Inc. | 2,048 |
| AS24286 | Weathernews,Inc. | 2,048 |
| AS58784 | Rissho University | 2,048 |
| AS131902 | Sony Corporation | 2,048 |
| AS63770 | Industrial Cyber Security Center of Excellence | 2,048 |
| AS18090 | IMS Corporation | 2,048 |
| AS55383 | YYY Group, Inc. | 2,048 |
| AS23633 | Niigata Communication Service | 2,048 |
| AS131907 | Iwami Cablevision Co.,Ltd. | 2,048 |
| AS59095 | ACCELIA | 2,048 |
| AS59101 | mirai-bs corporation | 2,048 |
| AS59112 | Plus One marketing Ltd. | 2,048 |
| AS37912 | IPRIO Corporation. | 2,048 |
| AS18076 | Institute of Advanced Media Arts and Sciences | 2,048 |
| AS38642 | Yoshizou XYZ Solutions | 2,048 |
| AS23799 | National Defense Academy | 2,048 |
| AS59129 | LogicLinks, Inc. | 2,048 |
| AS59126 | NCT CO.,LTD. | 2,048 |
| AS24250 | Miyagin Computer Service Co.,ltd | 2,048 |
| AS24262 | HAMANASU INFORMATION Co., Ltd. | 2,048 |
| AS24265 | NTT Communications Corporation | 2,048 |
| AS37889 | J-PARC Center | 1,792 |
| AS38643 | UNIADEX, LTD. | 1,792 |
| AS4697 | NTT PF Labs | 1,792 |
| AS134396 | AusRegistry Pty Ltd | 1,536 |
| AS18139 | Hitachi Solutions, Ltd. | 1,536 |
| AS18123 | INAOKI EDUCATIONAL INSTITUTION | 1,536 |
| AS4710 | NTT | 1,536 |
| AS132504 | QUALITIA Co.,Ltd | 1,536 |
| AS133027 | ZenLogic Internet Ltd | 1,536 |
| AS24280 | Hitachi Systems, Ltd. | 1,536 |
| AS23885 | Oracle Corporation | 1,280 |
| AS131904 | Cyber Feel Inc | 1,280 |
| AS38629 | NTT Communications Corporation | 1,280 |
| AS38636 | DeNA, Co. Ltd. | 1,280 |
| AS58648 | AT-I, Inc. | 1,280 |
| AS7674 | NTT Communications Corporation | 1,280 |
| AS133203 | SBI BITS Co., Ltd. | 1,280 |
| AS7667 | KDDI R&D Laboratories, INC. | 1,280 |
| AS4718 | Cyber Kansai Project | 1,024 |
| AS38648 | F-REGI Co.,Ltd. | 1,024 |
| AS58789 | DUNAMIS Co.,Ltd | 1,024 |
| AS136782 | Kirin Networks | 1,024 |
| AS59125 | FAMILY NET JAPAN INCORPORATED | 1,024 |
| AS59122 | Ranger-Systems Co., Ltd. | 1,024 |
| AS131160 | Wire and Wireless Co.,Ltd. | 1,024 |
| AS18149 | Japan Registry Service Co., Ltd. | 1,024 |
| AS55891 | WATCH TOWER BIBLE AND TRACT SOCIETY | 1,024 |
| AS24477 | Netapp inc. | 1,024 |
| AS55382 | Nagato city office | 1,024 |
| AS131912 | Cybozu,Inc. | 1,024 |
| AS131905 | Japan Registry Services Co., Ltd. | 1,024 |
| AS55890 | Suntory Business Expert Limited | 1,024 |
| AS58645 | Miyagi Cable TV Co.,Ltd | 1,024 |
| AS131901 | FIDESSA KK | 1,024 |
| AS58792 | WirelessGate, Inc. | 1,024 |
| AS59114 | Recruit Holdings Co.,Ltd. | 1,024 |
| AS131910 | SORACOM. INC. | 1,024 |
| AS55894 | Who's Next | 1,024 |
| AS59099 | BroadBand Tower, Inc. | 1,024 |
| AS4774 | A-Bone by Internet Initiative Japan Inc. | 1,024 |
| AS58654 | BLESS Co.,Ltd. | 1,024 |
| AS59105 | Home NOC Operators Group | 1,024 |
| AS55896 | Videx Inc. | 1,024 |
| AS55375 | SmartInsight Inc. | 1,024 |
| AS18091 | Teikyo University | 1,024 |
| AS59093 | IMABARI CATV CORPORATION | 1,024 |
| AS7500 | WIDE Project | 1,024 |
| AS59097 | Okinawa Cross Head Co., Ltd. | 1,024 |
| AS59110 | BPS Inc. | 1,024 |
| AS133476 | First Innovation K.K. | 1,024 |
| AS55378 | QUICK Corp. | 1,024 |
| AS45676 | SBI TradeWinTech Co.,Ltd. | 1,024 |
| AS59123 | Kakaku.com, Inc. | 1,024 |
| AS23826 | Daido University | 1,024 |
| AS131909 | Okinawa Data Center | 1,024 |
| AS37893 | TradeWeb Europe Limited | 768 |
| AS10209 | Japan HUB and Data Center | 768 |
| AS24283 | MIEDEN SYSTEM SOLUTION .LTD | 768 |
| AS38033 | Yahoo Inc. | 768 |
| AS24263 | HONDA MOTOR Co., Ltd. | 768 |
| AS54415 | WIZ TECHNOLOGIES | 768 |
| AS37888 | HORIBA, Ltd. | 768 |
| AS55905 | Comzware Inc | 768 |
| AS131896 | SSI Lab Inc. | 768 |
| AS4717 | WIDE Project | 512 |
| AS132451 | 2142-1;KUKIOKA;MAEDA; | 512 |
| AS131158 | Nara Institute of Science and Technology, National University Corporation | 512 |
| AS132211 | FX Corporate LLC | 512 |
| AS55396 | NRI SecureTechnologies, Ltd | 512 |
| AS131914 | datadockInc. | 512 |
| AS55907 | GMO Internet,Inc | 512 |
| AS24260 | Board of trusty: Kinjo-Gakuen | 512 |
| AS55873 | St. Jude Medical | 512 |
| AS133782 | Elsevier Ltd | 512 |
| AS55895 | N.S.Computer Service Co.,Ltd. | 512 |
| AS45691 | Elliott Advisors Asia Limited | 512 |
| AS38658 | Liquidnet APNIC POC Role Identity | 512 |
| AS24291 | MITSUI & CO., LTD. | 512 |
| AS206689 | Beeks Financial Cloud Ltd | 512 |
| AS136574 | Zheye Networks | 512 |
| AS7661 | Network Organization for Research and Technologyin Hokkaido | 512 |
| AS63917 | Amway Japan G.K | 512 |
| AS59120 | Tsukuba Internet Service Corporation | 512 |
| AS131895 | Okinawa Institute of science and technology | 384 |
| AS131078 | KDDI R&D Laboratories, INC. | 256 |
| AS55373 | Foundation for Biomedical Research and Innovation | 256 |
| AS18284 | Isetan Data Center Co., Ltd. | 256 |
| AS58651 | GMO Internet,Inc | 256 |
| AS24252 | Japan Registry Service Co., Ltd. | 256 |
| AS55949 | Technopro Holdings | 256 |
| AS131894 | UNIADEX, LTD. | 256 |
| AS131906 | Gap Japan K.K. | 256 |
| AS23642 | OBIS | 256 |
| AS23929 | Ubiquitous Corp. Data Center Network. | 256 |
| AS45217 | Tora Trading Services Ltd. | 256 |
| AS55909 | Kochi National College of Technology | 256 |
| AS24287 | National Institute of Informatics | 256 |
| AS23940 | TR-IP-ADMIN | 256 |
| AS4690 | WIDE Project | 256 |
| AS37905 | Brastel Co.,Ltd | 256 |
| AS59128 | Kyoto University Microcomputer Club | 256 |
| AS59124 | KYOTO Prefectural Government | 256 |
| AS23774 | Japan Registry Service Co., Ltd. | 256 |
| AS55377 | Sadiatec Co., Ltd | 256 |
| AS58649 | GMO Internet,Inc | 256 |
| AS23634 | WIDE Project | 256 |
| AS135304 | VMWare Incorporation | 256 |
| AS131913 | Niigata ken | 256 |
| AS59113 | RICOH JAPAN Corporation | 256 |
| AS4777 | Asia Pacific Network Information Centre | 256 |
| AS131155 | NTT Communications Corporation | 256 |
| AS131917 | Toshiba I.S. corp | 256 |
| AS24256 | SOFTBANK Corp. | 256 |
| AS45674 | BIGLOBE Inc. | 256 |
| AS24047 | Internet Systems Consortium, Inc. | 256 |
| AS133900 | Gilead Sciences, Inc. | 256 |
| AS59117 | RBNET Co.,Ltd. | 256 |
| AS55908 | Nomura Research Institute,Ltd. | 256 |
| AS23761 | Xpedite Systems | 256 |
| AS131903 | Nomura Research Institute,Ltd. | 256 |
| AS134827 | EY Business Initiative Co., Ltd | 256 |
| AS37906 | NetIRD Inc. | 256 |
| AS45678 | ABN AMRO Clearing Tokyo Co., Ltd. | 256 |
| AS38646 | WIDE Project | 256 |
| AS132496 | SBI BITS Co., Ltd. | 256 |
| AS24274 | Actelion Pharmaceuticals Japan Ltd. | 256 |
| AS18080 | Sopiafons Co.,Ltd | 256 |
| AS23833 | Marusan Securities Co., LTD. | 256 |
| AS59111 | Akita International University | 256 |
| AS59115 | CYBERDYNE Inc. | 256 |
| AS9360 | AS9360 | 0 |
| AS7510 | AS7510 | 0 |
| AS7504 | AS7504 | 0 |
| AS4735 | AS4735 | 0 |
| AS4731 | AS4731 | 0 |
| AS4726 | AS4726 | 0 |
| AS4702 | AS4702 | 0 |
| AS4679 | AS4679 | 0 |
| AS4698 | InterLink Co., Ltd. | 0 |
| AS63809 | AS63809 | 0 |
| AS63808 | AS63808 | 0 |
| AS63807 | AS63807 | 0 |
| AS63806 | AS63806 | 0 |
| AS63804 | AS63804 | 0 |
| AS56023 | SmartRams Co., Ltd. | 0 |
| AS7509 | Hokkaido University | 0 |
| AS23926 | Yahoo Inc. | 0 |
| AS132888 | Freak | 0 |
| AS63801 | AS63801 | 0 |
| AS131157 | IMS Corporation | 0 |
| AS63800 | AS63800 | 0 |
| AS17697 | NTT PC Communications, Inc. | 0 |
| AS18277 | Kurashiki University of Science and the Arts | 0 |
| AS18151 | COMPUTER ENGINEERING & CONSULTING LTD. | 0 |
| AS63798 | AS63798 | 0 |
| AS7688 | Nippon Internet Access Inc. | 0 |
| AS63796 | AS63796 | 0 |
| AS63795 | AS63795 | 0 |
| AS63794 | AS63794 | 0 |
| AS63792 | AS63792 | 0 |
| AS131918 | SHONAN CABLE NETWORK | 0 |
| AS9376 | SMARTVALUE Co.,Ltd. | 0 |
| AS18269 | Kai Creates Inc. | 0 |
| AS63789 | AS63789 | 0 |
| AS56021 | NetResource corporation | 0 |
| AS63788 | AS63788 | 0 |
| AS56218 | QGPOP2 | 0 |
| AS56033 | Rakushasu Inc | 0 |
| AS18122 | Advanced Software Technology & Management Research Institute of KYOTO | 0 |
| AS55395 | Rakuten Communications Corp. | 0 |
| AS63785 | AS63785 | 0 |
| AS63783 | AS63783 | 0 |
| AS63782 | AS63782 | 0 |
| AS63779 | AS63779 | 0 |
| AS63775 | AS63775 | 0 |
| AS63774 | AS63774 | 0 |
| AS37925 | USEN CORPORATION | 0 |
| AS55386 | AS55386 | 0 |
| AS45683 | AS45683 | 0 |
| AS38649 | AS38649 | 0 |
| AS38637 | AS38637 | 0 |
| AS37921 | AS37921 | 0 |
| AS37911 | AS37911 | 0 |
| AS23622 | Tsuru Gakuen | 0 |
| AS4692 | InternetWare Co., LTD. | 0 |
| AS38653 | Japan Post Holdings Co., Ltd. | 0 |
| AS37894 | AS37894 | 0 |
| AS24285 | AS24285 | 0 |
| AS24269 | AS24269 | 0 |
| AS24294 | AS24294 | 0 |
| AS37904 | Softbank Mobile Corp. | 0 |
| AS24266 | AS24266 | 0 |
| AS18270 | Toin University of Yokohama | 0 |
| AS24258 | AS24258 | 0 |
| AS23819 | AS23819 | 0 |
| AS23792 | AS23792 | 0 |
| AS23787 | AS23787 | 0 |
| AS7515 | NTT Communications Corporation | 0 |
| AS23643 | AS23643 | 0 |
| AS23636 | AS23636 | 0 |
| AS23612 | AS23612 | 0 |
| AS9379 | AS9379 | 0 |
| AS9349 | AS9349 | 0 |
| AS7691 | AS7691 | 0 |
| AS55372 | University of the Ryukyus | 0 |
| AS7689 | AS7689 | 0 |
| AS7685 | AS7685 | 0 |
| AS7681 | AS7681 | 0 |
| AS7680 | AS7680 | 0 |
| AS7662 | AS7662 | 0 |
| AS38645 | NTT Communications Corporation | 0 |
| AS59098 | Cable DR Cloud Joint Venture | 0 |
| AS55901 | Sony Computer Entertainment Inc | 0 |
| AS23797 | IXO | 0 |
| AS7525 | AS7525 | 0 |
| AS7520 | AS7520 | 0 |
| AS4691 | Dream Train Internet Inc. | 0 |
| AS7519 | AS7519 | 0 |
| AS7518 | AS7518 | 0 |
| AS7508 | AS7508 | 0 |
| AS7501 | AS7501 | 0 |
| AS4724 | AS4724 | 0 |
| AS4728 | AS4728 | 0 |
| AS4720 | AS4720 | 0 |
| AS4699 | AS4699 | 0 |
| AS2915 | AT&T Jens Corporation | 0 |
| AS4707 | AS4707 | 0 |
| AS4706 | AS4706 | 0 |
| AS4701 | AS4701 | 0 |
| AS4705 | AS4705 | 0 |
| AS58531 | Tibanne Co. Ltd. | 0 |
| AS4696 | AS4696 | 0 |
| AS4689 | AS4689 | 0 |
| AS4674 | AS4674 | 0 |
| AS4676 | AS4676 | 0 |
| AS23815 | Japan Internet Exchange Co., Ltd. | 0 |
| AS23814 | WIDE Project | 0 |
| AS23810 | IC-NET Corporation | 0 |
| AS59119 | HIDATAKAYAMA CABLE NETWORK INC. | 0 |
| AS59100 | Kochi Gakuen College | 0 |
| AS58646 | FreeBit Co.,Ltd. | 0 |
| AS23809 | Televi Naruto .CO.,LTD | 0 |
| AS58790 | ZENRIN DataCom Co.,LTD. | 0 |
| AS55906 | Ustream Asia, Inc. | 0 |
| AS9616 | WIDE Project | 0 |
| AS131075 | Nippon Telegraph and Telephone Corporation PF Labs., | 0 |
| AS4684 | NTT PC Communications, Inc. | 0 |
| AS9377 | AS9377 | 0 |
| AS9375 | AS9375 | 0 |
| AS9359 | AS9359 | 0 |
| AS7675 | AS7675 | 0 |
| AS7528 | AS7528 | 0 |
| AS2499 | Japan Network Information Center | 0 |
| AS7507 | AS7507 | 0 |
| AS4734 | AS4734 | 0 |
| AS4715 | AS4715 | 0 |
| AS4714 | AS4714 | 0 |
| AS4703 | AS4703 | 0 |
| AS4687 | AS4687 | 0 |
| AS55374 | WIDE Project | 0 |
| AS17951 | Kobe Community Exchange Co. | 0 |
| AS9369 | AS9369 | 0 |
| AS9373 | AS9373 | 0 |
| AS9368 | AS9368 | 0 |
| AS9364 | AS9364 | 0 |
| AS9362 | AS9362 | 0 |
| AS9361 | AS9361 | 0 |
| AS9356 | AS9356 | 0 |
| AS9350 | AS9350 | 0 |
| AS9598 | NTT Communications Corporation | 0 |
| AS7488 | Yahoo Japan Corporation | 0 |
| AS9994 | Japan Network Information Center | 0 |
| AS9992 | Japan Network Information Center | 0 |
| AS9620 | Japan Network Information Center | 0 |
| AS9613 | Japan Network Information Center | 0 |
| AS9612 | Japan Network Information Center | 0 |
| AS9611 | Japan Network Information Center | 0 |
| AS9610 | Japan Network Information Center | 0 |
| AS9608 | HAPPY JAPAN BiNAL INC. | 0 |
| AS9603 | Japan Network Information Center | 0 |
| AS9602 | Japan Network Information Center | 0 |
| AS9596 | Japan Network Information Center | 0 |
| AS9594 | Japan Network Information Center | 0 |
| AS58728 | Instream | 0 |
| AS56022 | MTA corporation | 0 |
| AS55935 | erg Co. | 0 |
| AS55911 | Tokuyama College of Technology | 0 |
| AS55888 | New Culture Production Inc | 0 |
| AS55475 | Impact Co Ltd | 0 |
| AS55457 | A4 Ltd | 0 |
| AS55897 | SAKURA Internet Inc. | 0 |
| AS4733 | SAISON INFORMATION SYSTEMS CO. | 0 |
| AS45681 | GIGAPRIZE Co. | 0 |
| AS9592 | SOFTBANK TELECOM Corp. | 0 |
| AS38630 | NTT West R&D Center | 0 |
| AS38656 | CSK Securities Service Co. | 0 |
| AS2528 | Block of 32 AS numbers from AS2497 to AS2528 | 0 |
| AS2525 | Block of 32 AS numbers from AS2497 to AS2528 | 0 |
| AS2522 | Block of 32 AS numbers from AS2497 to AS2528 | 0 |
| AS2520 | Block of 32 AS numbers from AS2497 to AS2528 | 0 |
| AS2517 | Block of 32 AS numbers from AS2497 to AS2528 | 0 |
| AS2509 | Block of 32 AS numbers from AS2497 to AS2528 | 0 |
| AS2507 | Block of 32 AS numbers from AS2497 to AS2528 | 0 |
| AS2498 | Block of 32 AS numbers from AS2497 to AS2528 | 0 |
| AS23835 | Sega Corporation | 0 |
| AS23812 | Japan Broadband Communications Corporation | 0 |
| AS23782 | Fujitsu System Solutions Ltd | 0 |
| AS23626 | Verizon Japan Ltd | 0 |
| AS23617 | Koutoku-Sangyou Co | 0 |
| AS24281 | NTT SmartConnect Corporation | 0 |
| AS18288 | JPNIC | 0 |
| AS18287 | OCV Odakyu Telecommunication Services | 0 |
| AS18285 | JPNIC | 0 |
| AS18280 | JPNIC | 0 |
| AS18275 | JPNIC | 0 |
| AS18273 | JPNIC | 0 |
| AS18262 | JPNIC | 0 |
| AS18261 | JPNIC | 0 |
| AS18152 | JPNIC | 0 |
| AS18147 | JPNIC | 0 |
| AS18145 | JPNIC | 0 |
| AS18137 | JPNIC | 0 |
| AS18132 | JPNIC | 0 |
| AS23640 | BBIX,Inc. | 0 |
| AS45686 | INTERNET MULTIFEED CO. | 0 |
| AS45679 | Tatsumi, Tomo | 0 |
| AS18130 | JPNIC | 0 |
| AS18098 | JPNIC | 0 |
| AS18096 | JPNIC | 0 |
| AS18093 | JPNIC | 0 |
| AS18083 | JPNIC | 0 |
| AS132906 | EVM Networks | 0 |
| AS18079 | JPNIC | 0 |
| AS18078 | JPNIC | 0 |
| AS18073 | JPNIC | 0 |
| AS17959 | ICN K-techsjapan Inc. | 0 |
| AS37926 | E-Times Technologies Co., Ltd. | 0 |
| AS4251 | TWICS Co. Ltd. | 0 |
| AS4712 | JAPAN TOBACCO INC. | 0 |
| AS131908 | INTEC Inc. | 0 |
| AS17952 | Japan Network Information Center | 0 |
| AS17942 | Japan Network Information Center | 0 |
| AS17935 | Japan Network Information Center | 0 |
| AS17930 | Japan Network Information Center | 0 |
| AS17751 | for assignment to JPNIC members | 0 |
| AS17522 | NIPPON TELEGRAPH AND TELEPHONE WEST CORPORATION | 0 |
| AS17704 | Japan Network Information Center | 0 |
| AS17703 | Japan Network Information Center | 0 |
| AS131082 | Japan Internet Exchange Co., Ltd. | 0 |
| AS59106 | SKYLINKS INC. | 0 |
| AS17702 | Japan Network Information Center | 0 |
| AS10007 | SoftBank Mobile Corp. | 0 |
| AS17700 | Japan Cablenet Limited | 0 |
| AS17690 | Japan Network Information Center | 0 |
| AS17684 | Japan Network Information Center | 0 |
| AS17681 | Japan Network Information Center | 0 |
| AS17679 | Japan Network Information Center | 0 |
| AS17674 | Japan Network Information Center | 0 |
| AS17533 | Japan Network Information Center | 0 |
| AS17531 | Japan Network Information Center | 0 |
| AS17528 | Okinawa Tele Message Corporation | 0 |
| AS17526 | Japan Network Information Center | 0 |
| AS17525 | Japan Cablenet Limited | 0 |
| AS17520 | Japan Network Information Center | 0 |
| AS17519 | Japan Network Information Center | 0 |
| AS23625 | TOKAI Communications Corporation | 0 |
| AS23830 | Gaitame.com Co.,Ltd. | 0 |
| AS17517 | Japan Network Information Center | 0 |
| AS131080 | SAKURA Internet Inc. | 0 |
| AS17515 | Japan Network Information Center | 0 |
| AS17508 | Japan Network Information Center | 0 |
| AS17507 | Japan Network Information Center | 0 |
| AS4681 | Yahoo Japan Corporation | 0 |
| AS4716 | KDDI CORPORATION | 0 |
| AS4732 | KDDI CORPORATION | 0 |
| AS17503 | Japan Network Information Center | 0 |
| AS133067 | LINE Inc. | 0 |
| AS4197 | Yahoo Japan Corporation | 0 |
| AS18286 | Osaka City University | 0 |
| AS2521 | Yahoo Japan Corporation | 0 |
| AS10020 | Japan Network Information Center | 0 |
| AS63771 | Border Gateway Protocol Network Analysis Project | 0 |
| AS9995 | FirstServer, Inc. | 0 |
| AS10018 | Japan Network Information Center | 0 |
| AS10017 | Japan Network Information Center | 0 |
| AS10009 | AREWORKS Rworks | 0 |
| AS10008 | Japan Network Information Center | 0 |
| AS18095 | Reitaku University | 0 |
| AS10005 | Japan Network Information Center | 0 |
| AS17954 | Japan Network Information Center | 0 |
| AS55748 | MORSE | 0 |
| AS38610 | APNIC R&D Centre JP | 0 |
| AS136779 | Schneider Electric Japan Ltd | 0 |
| AS136178 | FIL Japan Holdings K.K. | 0 |
| AS131074 | APNIC R&D Centre JP | 0 |
| AS17933 | Nippon Telegraph and Telephone East Corporation | 0 |
| AS38640 | SAKURA Internet Inc. | 0 |
| AS132833 | Research Management Ltd. | 0 |
| AS1233 | National Space Development Agency | 0 |
| AS45139 | Microsoft Maintainer Object | 0 |
| AS10033 | iBasis Tokyo ICO | 0 |
| AS133869 | SalesForce.com, Inc. | 0 |
| AS3510 | Real World Computing Partnership | 0 |
| AS38080 | Foresightwave INC. | 0 |
| AS132592 | Star Co,.Ltd. | 0 |
| AS45685 | Rikkyo Gakuin Rikkyo University | 0 |
| AS17949 | Tokyo University of Technorogy | 0 |
| AS132290 | AstraZeneca UK Limited | 0 |
| AS58535 | MarketPrizm BV | 0 |
| AS136506 | LEON CO.LTD | 0 |
| AS56024 | Biz-front Inc | 0 |
| AS56029 | CELL INC. | 0 |
| AS55817 | Nippon Telegraph and Telephone Corporation PF Labs | 0 |
| AS133795 | Choopa, LLC | 0 |
| AS9225 | Telstra Global - KK | 0 |
| AS17795 | Netvein Corporation | 0 |
| AS3775 | Global Network Solutions, IBM Japan, Ltd. | 0 |
| AS131106 | AS for DATAHOTEL, which is one of iDC in Japan, | 0 |
| AS24056 | SINGTEL-EXPAN | 0 |
| AS7669 | DIGITAL TECHNOLOGIES CORPORATION | 0 |
| AS3391 | ASCIInet Corporation | 0 |
| AS23813 | SORUN Corporation | 0 |
| AS9609 | Ymobile Corporation | 0 |
| AS9222 | Intel Online Services Asia | 0 |
| AS23621 | GINGA SYSTEM CO.,LTD | 0 |
| AS132120 | Internet Systems Consortium | 0 |
| AS45436 | Green Net Co., Ltd. | 0 |
| AS2502 | The University of Tokyo | 0 |
| AS132024 | Rebyc Inc. | 0 |
| AS136769 | WingTecJapan G.K | 0 |
| AS38910 | JP Morgan Chase & Co. | 0 |
| AS132383 | Y's Enterprise Co.,Ltd. | 0 |
| AS2713 | AT&T Jens Corporation | 0 |
| AS10807 | Hitachi Business International, Ltd. | 0 |
| AS23806 | Chupicom Hiroshima Corp. | 0 |
| AS37899 | NIPPON TELEGRAPH AND TELEPHONE WEST CORPORATION | 0 |
| AS131084 | MKI Network Solutions, Ltd. | 0 |
| AS17977 | SINGTEL-JP | 0 |
| AS24114 | Equinix Asia Pacific | 0 |
| AS135642 | Abadi Internet Services LLC | 0 |
| AS37909 | Wakkanai Hokusei Gakuen University | 0 |
| AS17521 | Kochi University of Technology | 0 |
| AS7666 | Mitsubishi Corporation | 0 |
| AS17695 | MLJS | 0 |
| AS63524 | Equinix Asia Pacific | 0 |
| AS7512 | WITH Network | 0 |
| AS45673 | Osaka Electro-Communication University | 0 |
| AS134532 | AT&T Global Network Services | 0 |
| AS9935 | AT&T Global Network Services | 0 |
| AS18279 | Bukkyo University | 0 |
| AS63978 | Chi-X Japan Limited | 0 |
| AS131081 | Intec NetCore, Inc. | 0 |
| AS23800 | Fukui National College of Technology | 0 |
| AS23638 | AMIXCOM Inc. | 0 |
| AS7526 | Mitsubishi Electric Information Network Corporation | 0 |
| AS131079 | INTERNET MULTIFEED CO. | 0 |
| AS38644 | INTERNET MULTIFEED CO. | 0 |
| AS9372 | The University of Electro-Communications | 0 |
| AS131086 | Densan Co., Ltd. | 0 |
| AS9380 | Community Network Center Inc. | 0 |
| AS131922 | Birdie Mobile Inc. | 0 |
| AS132373 | Asian Web Company Inc. | 0 |
| AS24292 | NS Solutions Corporation | 0 |
| AS56025 | AMY INC | 0 |
| AS131898 | Yahoo Japan Corporation | 0 |
| AS2503 | Tohoku Open Internet Community | 0 |
| AS45689 | Convivial Net | 0 |
| AS10124 | Amazon INFS private | 0 |
| AS131154 | NANO OPT Media, Inc. | 0 |
| AS55389 | Japan Network Enabler Corporation | 0 |
| AS7673 | ejworks corporation | 0 |
| AS55903 | Tokyo Stock Exchange, Inc. | 0 |
| AS2524 | EJWORKS CORPORATION | 0 |
| AS9599 | EJWORKS CORPORATION | 0 |
| AS58786 | GMO Internet,Inc | 0 |
| AS131920 | WirelessGate, Inc. | 0 |
| AS4722 | SoftBank Corp. | 0 |
| AS4708 | Nippon Internet Access Inc. | 0 |
| AS9606 | Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency | 0 |
| AS38655 | SaiNet Corporation | 0 |
| AS58787 | Comzware Inc | 0 |
| AS4709 | NetLaputa Corporation | 0 |
| AS37924 | Ministry of Land, Infrastructure and Transport Kinki Regional Development Bureau | 0 |
| AS17945 | iTV Co,Ltd | 0 |
| AS131152 | BBIX,Inc. | 0 |
| AS4682 | SoftBank Mobile Corp. | 0 |
| AS131153 | KVH Co., Ltd. | 0 |
| AS38632 | cross-connect niigata co.,ltd. | 0 |
| AS7683 | trunk inc. | 0 |
| AS17532 | Tokyo Polytechnic University | 0 |
| AS7531 | GenomeNet Project | 0 |
| AS63805 | AS63805 | 0 |
| AS63803 | AS63803 | 0 |
| AS63802 | AS63802 | 0 |
| AS63799 | AS63799 | 0 |
| AS4727 | KYODO PRINTING BUSINESS SOLUTIONS CO.,LTD | 0 |
| AS63797 | AS63797 | 0 |
| AS63793 | AS63793 | 0 |
| AS63791 | AS63791 | 0 |
| AS63790 | AS63790 | 0 |
| AS63786 | AS63786 | 0 |
| AS131085 | Niigata Communication Service | 0 |
| AS63787 | AS63787 | 0 |
| AS23630 | CAC Inc. | 0 |
| AS63784 | AS63784 | 0 |
| AS17938 | SOFTBANK TELECOM Corp. | 0 |
| AS4683 | Phase One, Inc. | 0 |
| AS63781 | AS63781 | 0 |
| AS23803 | The University of Tokyo | 0 |
| AS63780 | AS63780 | 0 |
| AS63778 | AS63778 | 0 |
| AS18133 | AGE Inc. | 0 |
| AS63777 | AS63777 | 0 |
| AS17527 | CHITA MEDIAS NETWORK INC. | 0 |
| AS23831 | NISIOWARI CATV CORPORATION | 0 |
| AS18089 | KDDI Corporation | 0 |
| AS37901 | NIPPON TELEGRAPH AND TELEPHONE EAST CORPORATION | 0 |
| AS63776 | AS63776 | 0 |
| AS63772 | AS63772 | 0 |
| AS63773 | AS63773 | 0 |
| AS59130 | NTT Communications Corperation | 0 |
| AS38650 | AS38650 | 0 |
| AS38647 | AS38647 | 0 |
| AS9996 | KDDI Corporation | 0 |
| AS4688 | Internet Initiative Japan Inc. | 0 |
| AS37913 | AS37913 | 0 |
| AS37895 | Ryukoku University | 0 |
| AS37927 | Nomura Researth Institute, Ltd. | 0 |
| AS37902 | Nomura Research Institute, Ltd. | 0 |
| AS55893 | NTT DATA CORPORATION | 0 |
| AS4700 | Niji-Net Inc. | 0 |
| AS37896 | AS37896 | 0 |
| AS37923 | NTT Communications Corporation | 0 |
| AS18131 | NTT Communications Corporation Innovative IP Architecture Center | 0 |
| AS37890 | AS37890 | 0 |
| AS18084 | Asia Netcom Japan Corp. | 0 |
| AS17692 | Kyocera Communication Systems Co., Ltd. | 0 |
| AS24272 | AS24272 | 0 |
| AS24267 | AS24267 | 0 |
| AS23834 | AS23834 | 0 |
| AS23825 | AS23825 | 0 |
| AS23823 | AS23823 | 0 |
| AS23821 | AS23821 | 0 |
| AS23802 | AS23802 | 0 |
| AS23789 | AS23789 | 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.