| 1 | AS2497 | Internet Initiative Japan | 190 | 0 | 258 | 11 |
| 2 | AS17676 | SoftBank Corp. | 100 | 3 | 482 | 3 |
| 3 | AS2516 | KDDI | 98 | 3 | 553 | 9 |
| 4 | AS2907 | National Institute of Informatics | 85 | 1 | 604 | 2 |
| 5 | AS4713 | NTT Communications Corporation (OCN) | 59 | 2 | 183 | 5 |
| 6 | AS2519 | ARTERIA Networks Corporation (Vectant) | 56 | 3 | 182 | 2 |
| 7 | AS216211 | Cyberverse LLC | 45 | 8 | 11 | 0 |
| 8 | AS51847 | Community-IX Vienna Route Servers | 41 | 5 | 58 | 22 |
| 9 | AS15412 | Global Cloud Xchange (f.k.a. FLAG Telecom) | 32 | 3 | 19 | 1 |
| 10 | AS2518 | BIGLOBE (AS2518) | 31 | 3 | 33 | 2 |
| 11 | AS10010 | TOKAI Communications Corporation | 29 | 6 | 185 | 7 |
| 12 | AS54253 | Oracle Corporation | 27 | 27 | 369 | 467 |
| 13 | AS59105 | Home NOC Operators Group | 21 | 4 | 5 | 1 |
| 14 | AS9824 | JCOM | 19 | 3 | 233 | 62 |
| 15 | AS7679 | QTnet | 17 | 6 | 36 | 1 |
| 16 | AS59103 | SoftEther Corporation | 17 | 3 | 9 | 8 |
| 17 | AS7529 | NetIRD | 16 | 4 | 9 | 1 |
| 18 | AS7670 | Enecom,Inc. | 14 | 4 | 19 | 1 |
| 19 | AS61112 | IPv4 Management SRL | 13 | 9 | 96 | 31 |
| 20 | AS9354 | Community Network Center Inc. (CNCI) | 13 | 4 | 37 | 1 |
| 21 | AS10021 | Colt Technology Asia | 12 | 1 | 45 | 4 |
| 22 | AS38074 | SDCC OpenNetwork | 12 | 2 | 3 | 2 |
| 23 | AS4785 | xTom Japan | 11 | 2 | 46 | 20 |
| 24 | AS45691 | DODO K.K. | 11 | 3 | 32 | 11 |
| 25 | AS206069 | JSC Kurumoch International Airport | 11 | 3 | 5 | 2 |
| 26 | AS2500 | WIDE Project | 11 | 2 | 3 | 1 |
| 27 | AS9607 | BroadBand Tower | 10 | 1 | 20 | 5 |
| 28 | AS149020 | WebHorizon Internet Services | 9 | 4 | 14 | 16 |
| 29 | AS55888 | Nintatsu Global Telecommunications Corporation | 9 | 4 | 5 | 0 |
| 30 | AS212336 | MinetHost | 8 | 6 | 31 | 18 |
| 31 | AS55900 | GLBB Japan | 8 | 3 | 29 | 1 |
| 32 | AS150369 | TelHi Corporation | 8 | 1 | 2 | 2 |
| 33 | AS4725 | Softbank Corp. (former Japan Telecom) | 7 | 2 | 136 | 1 |
| 34 | AS139076 | EnjoyVC Japan | 7 | 2 | 18 | 1 |
| 35 | AS17675 | PacketFabric (Japan) Co., Ltd. | 7 | 1 | 16 | 1 |
| 36 | AS395793 | Arisk Communications inc. | 6 | 6 | 155 | 0 |
| 37 | AS3258 | xTom Japan Corporation | 6 | 3 | 135 | 26 |
| 38 | AS7524 | iTEC Hankyu Hanshin Co.,Ltd | 6 | 5 | 108 | 1 |
| 39 | AS7506 | GMO Internet, Inc. | 6 | 3 | 98 | 6 |
| 40 | AS55391 | INTERNET MULTIFEED CO. Transix East | 6 | 2 | 5 | 2 |
| 41 | AS142616 | Misaka Network, Inc. | 6 | 2 | 3 | 7 |
| 42 | AS218538 | Argsment Limited | 6 | 2 | 1 | 5 |
| 43 | AS58791 | GMO Internet West | 5 | 3 | 181 | 2 |
| 44 | AS400618 | Prime Security Corp. | 5 | 3 | 71 | 13 |
| 45 | AS17511 | OPTAGE Inc. | 5 | 1 | 66 | 2 |
| 46 | AS2510 | Fujitsu Limited | 5 | 1 | 60 | 1 |
| 47 | AS7522 | STNet, Incorporated | 5 | 2 | 54 | 1 |
| 48 | AS9370 | SAKURA internet | 5 | 2 | 39 | 5 |
| 49 | AS138384 | Rakuten Mobile | 5 | 3 | 31 | 1 |
| 50 | AS18260 | EHIME CATV CO.,LTD. | 5 | 3 | 23 | 1 |
| 51 | AS9371 | SAKURA internet ASN 9371 | 5 | 2 | 22 | 1 |
| 52 | AS154410 | Marshall Telecom Ltd | 5 | 1 | 20 | 0 |
| 53 | AS138968 | Rainbow Network Japan | 5 | 4 | 19 | 2 |
| 54 | AS9365 | its communications inc | 5 | 3 | 14 | 1 |
| 55 | AS59116 | AIG Technologies KK | 5 | 5 | 12 | 5 |
| 56 | AS213169 | Franz Nord | 5 | 5 | 10 | 0 |
| 57 | AS7521 | INTERNET MULTIFEED CO. | 5 | 1 | 8 | 1 |
| 58 | AS18070 | Global Network Core Co., Ltd. | 5 | 2 | 5 | 1 |
| 59 | AS7500 | M-ROOT DNS Server | 5 | 4 | 4 | 1 |
| 60 | AS210025 | XXSL Network | 5 | 1 | 1 | 10 |
| 61 | AS212985 | Mingjie Wu | 5 | 0 | 0 | 7 |
| 62 | AS4694 | IDC Frontier Inc. | 4 | 2 | 329 | 5 |
| 63 | AS2514 | NTT PC Communications (InfoSphere) | 4 | 2 | 161 | 4 |
| 64 | AS203061 | IT Proximus | 4 | 4 | 90 | 1 |
| 65 | AS2527 | Sony Network Communications | 4 | 2 | 74 | 2 |
| 66 | AS137535 | JT TELECOM INTERNATIONAL PTE.LTD. | 4 | 3 | 71 | 0 |
| 67 | AS4685 | ASAHI Net | 4 | 4 | 62 | 2 |
| 68 | AS18068 | Dream Wave Shizuoka | 4 | 3 | 51 | 2 |
| 69 | AS398993 | PEG TECH INC | 4 | 4 | 49 | 0 |
| 70 | AS9351 | ZTV | 4 | 2 | 30 | 1 |
| 71 | AS38638 | Ip Core Corporation | 4 | 4 | 26 | 0 |
| 72 | AS58325 | Hydra Communications Ltd | 4 | 2 | 23 | 1 |
| 73 | AS215727 | NS Worldwide SA | 4 | 2 | 21 | 0 |
| 74 | AS23783 | Cable Networks Akita Co.,Ltd. | 4 | 2 | 19 | 2 |
| 75 | AS17686 | Accelia, Inc. | 4 | 2 | 18 | 1 |
| 76 | AS149042 | Silicon Cloud Global (US) | 4 | 3 | 10 | 3 |
| 77 | AS9619 | Sony Global Solutions Inc. | 4 | 4 | 9 | 4 |
| 78 | AS24295 | PacketFabric (Japan) Co., Ltd. | 4 | 1 | 8 | 1 |
| 79 | AS141757 | Zoho Japan Corporation | 4 | 4 | 8 | 1 |
| 80 | AS23816 | Yahoo Japan | 4 | 1 | 7 | 1 |
| 81 | AS137995 | SHUANGYU | 4 | 3 | 7 | 5 |
| 82 | AS54415 | WIZ | 4 | 2 | 6 | 7 |
| 83 | AS24257 | JPIX AS24257 | 4 | 3 | 5 | 3 |
| 84 | AS37900 | NTT DOCOMO BUSINESS, Inc. | 4 | 4 | 4 | 3 |
| 85 | AS54092 | DRW Holdings, LLC | 4 | 4 | 4 | 0 |
| 86 | AS55569 | Criteo Asia | 4 | 3 | 4 | 14 |
| 87 | AS396417 | Salesforce, Inc. | 4 | 4 | 4 | 1 |
| 88 | AS131910 | SORACOM. INC. | 4 | 1 | 3 | 1 |
| 89 | AS150363 | SoftEther Corporation | 4 | 1 | 3 | 0 |
| 90 | AS210576 | YAGUMYAGUM | 4 | 2 | 3 | 21 |
| 91 | AS37904 | BBIX, Inc. | 4 | 1 | 2 | 1 |
| 92 | AS63798 | Industrial Cyber Security Center of Excellence | 4 | 1 | 2 | 2 |
| 93 | AS199794 | Emocloud Ltd | 4 | 3 | 2 | 3 |
| 94 | AS215871 | xTom Japan Corporation | 4 | 0 | 2 | 3 |
| 95 | AS23642 | OBIS | 4 | 1 | 1 | 1 |
| 96 | AS63780 | dual&Co. | 4 | 2 | 1 | 1 |
| 97 | AS150325 | TSUKUDANI NETWORK | 4 | 1 | 1 | 4 |
| 98 | AS213471 | YAMAMOTO Hiroshi | 4 | 0 | 0 | 7 |
| 99 | AS9605 | NTT DOCOMO | 3 | 3 | 818 | 333 |
| 100 | AS18283 | Fureai Channel Inc. | 3 | 2 | 97 | 1 |
Autonomous Systems in Japan