Japan

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.