asn.dev

Observed topology

AS10010 TOKAI TOKAI Communications Corporation

Upstreams 10 carry this network
Downstreams 37 this network carries
Adjacent (IPv4) 50
Adjacent (IPv6) 24

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS10010: the AS immediately before it in a routing path. Ranked by how many paths showed the relationship, which reflects how widely it is used, not how much traffic crosses it.

ASNetworkTypeFamiliesPaths seen
AS2518BIGLOBE Inc.ResidentialIPv42,001
AS1299Arelion Sweden ABTransitIPv4 IPv61,773
AS4637Telstra GlobalUnclassifiedIPv4 IPv61,629
AS6939Hurricane Electric LLCTransitIPv41,522
AS17676SoftBank Corp.MobileIPv4 IPv61,473
AS174Cogent Communications, LLCTransitIPv4 IPv61,382
AS2497Internet Initiative Japan Inc.UnclassifiedIPv4 IPv61,135
AS24482SG.GSHostingIPv4 IPv6194
AS20485Joint Stock Company TransTeleComUnclassifiedIPv4188
AS17639Converge ICT Solutions Inc.UnclassifiedIPv4187

Inferred from path position, not from any declaration by either party. A network appearing here is carrying these routes; whether that is a paid transit arrangement, a backup, or something else is not something routing data can tell you.

Transit

Downstream networks

inferred

Networks for which AS10010 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS23791LCV CorporationUnclassifiedIPv4 IPv6337
AS131939IPS INCUnclassifiedIPv4302
AS17953BroadBand Security, Inc.UnclassifiedIPv4 IPv6291
AS131915Hamamatsu Cable Television .IncResidentialIPv4287
AS146969SoftBank Corp.HostingIPv4 IPv6239
AS23795Fitec Corp.UnclassifiedIPv4181
AS9351ZTV CO.,LTDResidentialIPv4180
AS17678Gunma Internet Co,.ltdUnclassifiedIPv4 IPv6158
AS23785SUN FIELD INTERNET LIMITEDUnclassifiedIPv4156
AS23836RELATION Co., Ltd.ResidentialIPv4 IPv6133
AS4678Canon IT Solutions Inc.UnclassifiedIPv4 IPv6131
AS63805Ryobi Systems Co., Ltd.UnclassifiedIPv4 IPv6118
AS131946MUSASHINO UNIVERSITY E.F.UnclassifiedIPv4115
AS133780Quantum Mesh Co.,Ltd.UnclassifiedIPv4 IPv697
AS23642OBISUnclassifiedIPv4 IPv697
AS55385Digital Alliance Co.,Ltd.UnclassifiedIPv4 IPv695
AS7690Mirai Communication Network Inc.ResidentialIPv4 IPv694
AS17683Wingtechnology Communications, Inc.UnclassifiedIPv4 IPv687
AS23639NTT Bizlink, Inc.UnclassifiedIPv4 IPv686
AS63779InfiniCloud Co. Ltd.HostingIPv468
AS59103SoftEther CorporationUnclassifiedIPv4 IPv668
AS24257Japan Internet Xing Co., Ltd.UnclassifiedIPv4 IPv662
AS38642Yoshizou XYZ SolutionsHostingIPv461
AS9990Nippon Information and Communication CorporationUnclassifiedIPv461
AS131940Nissho Electronics Corp.UnclassifiedIPv460
AS132504QUALITIA Co.,LtdUnclassifiedIPv459
AS131156LAC Co., Ltd.UnclassifiedIPv4 IPv658
AS131934ICC CorporationUnclassifiedIPv4 IPv647
AS18077Yamaguchi Cable Vision Co.,LtdResidentialIPv445
AS24271Iruma CATV co.UnclassifiedIPv428
AS18069SoftBank Corp.UnclassifiedIPv424
AS17947SAKURA KCS Corporation.UnclassifiedIPv420
AS131910SORACOM. INC.UnclassifiedIPv418
AS131945Sanntuu CorporationUnclassifiedIPv415
AS55387Japan Communication Inc.UnclassifiedIPv412
AS24268National University Corporation Shizuoka UniversityUnclassifiedIPv47
AS7522STNet, IncorporatedResidentialIPv44

Adjacency

Adjacent networks

74 shown

Every AS seen directly next to AS10010 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS1299Arelion Sweden ABTransitIPv4 IPv63,478
AS4637Telstra GlobalUnclassifiedIPv4 IPv63,357
AS2497Internet Initiative Japan Inc.UnclassifiedIPv4 IPv62,531
AS2518BIGLOBE Inc.ResidentialIPv42,001
AS6939Hurricane Electric LLCTransitIPv41,824
AS17676SoftBank Corp.MobileIPv4 IPv61,733
AS174Cogent Communications, LLCTransitIPv4 IPv61,431
AS59103SoftEther CorporationUnclassifiedIPv4 IPv6886
AS23642OBISUnclassifiedIPv4 IPv6881
AS23791LCV CorporationUnclassifiedIPv4 IPv6337
AS131939IPS INCUnclassifiedIPv4302
AS17953BroadBand Security, Inc.UnclassifiedIPv4 IPv6291
AS131915Hamamatsu Cable Television .IncResidentialIPv4287
AS24482SG.GSHostingIPv4 IPv6275
AS20485Joint Stock Company TransTeleComUnclassifiedIPv4249
AS17639Converge ICT Solutions Inc.UnclassifiedIPv4 IPv6240
AS146969SoftBank Corp.HostingIPv4 IPv6239
AS9351ZTV CO.,LTDResidentialIPv4197
AS23795Fitec Corp.UnclassifiedIPv4181
AS17683Wingtechnology Communications, Inc.UnclassifiedIPv4 IPv6174
AS17678Gunma Internet Co,.ltdUnclassifiedIPv4 IPv6158
AS23785SUN FIELD INTERNET LIMITEDUnclassifiedIPv4156
AS23836RELATION Co., Ltd.ResidentialIPv4 IPv6133
AS4678Canon IT Solutions Inc.UnclassifiedIPv4 IPv6131
AS63805Ryobi Systems Co., Ltd.UnclassifiedIPv4 IPv6118
AS131946MUSASHINO UNIVERSITY E.F.UnclassifiedIPv4115
AS7690Mirai Communication Network Inc.ResidentialIPv4 IPv6108
AS133780Quantum Mesh Co.,Ltd.UnclassifiedIPv4 IPv697
AS55385Digital Alliance Co.,Ltd.UnclassifiedIPv4 IPv695
AS24257Japan Internet Xing Co., Ltd.UnclassifiedIPv4 IPv688
AS23639NTT Bizlink, Inc.UnclassifiedIPv4 IPv686
AS63779InfiniCloud Co. Ltd.HostingIPv468
AS38642Yoshizou XYZ SolutionsHostingIPv461
AS9990Nippon Information and Communication CorporationUnclassifiedIPv461
AS131940Nissho Electronics Corp.UnclassifiedIPv460
AS132504QUALITIA Co.,LtdUnclassifiedIPv459
AS131156LAC Co., Ltd.UnclassifiedIPv4 IPv658
AS131934ICC CorporationUnclassifiedIPv4 IPv647
AS18077Yamaguchi Cable Vision Co.,LtdResidentialIPv445
AS24271Iruma CATV co.UnclassifiedIPv428
AS18069SoftBank Corp.UnclassifiedIPv424
AS17947SAKURA KCS Corporation.UnclassifiedIPv420
AS131910SORACOM. INC.UnclassifiedIPv418
AS131945Sanntuu CorporationUnclassifiedIPv415
AS55387Japan Communication Inc.UnclassifiedIPv412
AS24268National University Corporation Shizuoka UniversityUnclassifiedIPv47
AS18125Tsukuba Business-Academia Cooperation Support Center, Agriculture, Forestry and Fisheries Research Council Secretariat, Ministry of Agriculture, Forestry and FisheriesUnclassifiedIPv45
AS9002RETN LimitedUnclassifiedIPv45
AS7522STNet, IncorporatedResidentialIPv44
AS12389PJSC RostelecomResidentialIPv42

Adjacency is not the same as peering. Being next to each other in a path covers paid transit, settlement-free peering and customer connections alike, and routing data cannot distinguish them. Treat this as "these networks exchange routes", nothing more specific.

Interconnection

Exchange presence

recorded

Internet exchanges where Packet Clearing House has a port recorded for AS10010, largest fabric first. An exchange is shared switching where networks interconnect directly rather than paying a transit provider to carry traffic between them, so turning up at one is a deliberate choice about how this network wants to be reached. Each name opens that exchange's own page, with its peering LANs and every other network recorded on it. Recorded at 5 exchanges across 1 country and 1 region.

ExchangeLocationTheir addressMember ports
BroadBand Internet eXchange TokyoTokyo, Japan101.203.88.50358
JPIX TokyoTokyo, Japan210.171.224.124259
BroadBand Internet eXchange OsakaOsaka, Japan218.100.9.71132
Equinix Internet Exchange TokyoTokyo, Japan203.190.230.13124
JPIX OsakaOsaka, Japan103.246.232.124114

Unlike the tables above, this is recorded rather than inferred. An address on a peering LAN is at that exchange by definition. Two carve-outs all the same. Member ports counts every participant at the exchange, not this network's ports, so read it as a size proxy. And an absent exchange means PCH has no record of it, not that the network is not there.

Provenance

Where this comes from

Derived from routing tables collected at 2026-08-08 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 74.02M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.

Cross-check against RIPEstat or BGP.tools, which observe from a different and larger set of vantage points.

Exchange presence comes from a separate dataset: the directory collected 2026-08-09 by Packet Clearing House (https://www.pch.net/ixp/data), covering 1,327 exchanges and 93,164 recorded member ports, licensed CC BY-NC-SA 3.0.

PeeringDB is the better-known directory and is deliberately not the source here: its acceptable-use policy forbids the bulk storage this needs. The two answer different questions anyway. PeeringDB reports what an operator declares about itself; this reports what PCH has recorded.