asn.dev

Observed topology

AS2518 BIGLOBE BIGLOBE Inc.

Upstreams 12 carry this network
Downstreams 36 this network carries
Adjacent (IPv4) 50
Adjacent (IPv6) 30

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS2518: 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
AS174Cogent Communications, LLCTransitIPv4 IPv61,035
AS6939Hurricane Electric LLCTransitIPv4 IPv6294
AS1299Arelion Sweden ABTransitIPv4 IPv6211
AS9002RETN LimitedUnclassifiedIPv4 IPv6136
AS4635Hong Kong Internet Exchange--Route Server 1UnclassifiedIPv465
AS2914NTT America, Inc.TransitIPv463
AS2516KDDI CORPORATIONMobileIPv4 IPv644
AS24482SG.GSHostingIPv4 IPv635
AS2497Internet Initiative Japan Inc.UnclassifiedIPv433
AS12552GlobalConnect ABUnclassifiedIPv433
AS20485Joint Stock Company TransTeleComUnclassifiedIPv433
AS20562Broadband Hosting B.V.HostingIPv432

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 AS2518 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS10010TOKAI Communications CorporationResidentialIPv42,001
AS18068Dream Wave Shizuoka Co. Ltd.UnclassifiedIPv4 IPv6685
AS4711INTEC Inc.UnclassifiedIPv4 IPv6514
AS23629Obihiro City Cable Co.,Ltd.ResidentialIPv4481
AS9354Community Network Center Inc.ResidentialIPv4362
AS17961mitene internet co., ltd.UnclassifiedIPv4 IPv6325
AS7511SYNAPSE Co.,Ltd.ResidentialIPv4 IPv6251
AS9351ZTV CO.,LTDResidentialIPv4 IPv6214
AS9621Okinawa Telecommunication Network Co.,IncResidentialIPv4 IPv6213
AS24257Japan Internet Xing Co., Ltd.UnclassifiedIPv4 IPv6213
AS23661CLARA, Inc.HostingIPv4 IPv6208
AS7524ITEC HANKYU HANSHIN CO.,LTD.ResidentialIPv4198
AS38651MIXI, Inc.HostingIPv4 IPv6190
AS59105Home NOC Operators GroupUnclassifiedIPv4 IPv6170
AS7679QTnet,Inc.ResidentialIPv4167
AS55376KCV Communications Co. Ltd.ResidentialIPv4156
AS59097Okinawa Cross Head Co., Ltd.ResidentialIPv4141
AS131910SORACOM. INC.UnclassifiedIPv4126
AS18260EHIME CATV CO.,LTD.UnclassifiedIPv4 IPv6121
AS18070Global Network Core Co.,Ltd.ResidentialIPv4 IPv6116
AS215724Edgevana, Inc.HostingIPv4 IPv697
AS173Nippon Telegraph and Telephone CorporationUnclassifiedIPv486
AS10000Nagasaki Cable Media Inc.ResidentialIPv480
AS23783Cable Networks Akita Co.,ltd.ResidentialIPv476
AS146979University of NagasakiEducationIPv4 IPv669
AS2515Japan Network Information CenterUnclassifiedIPv4 IPv659
AS131912Cybozu,Inc.HostingIPv4 IPv655
AS59123Kakaku.com, Inc.HostingIPv4 IPv650
AS18121Ishikawa Computer Center Co.,LTD.ResidentialIPv4 IPv648
AS63805Ryobi Systems Co., Ltd.UnclassifiedIPv440
AS24255Koshinomiyako Network, Inc.ResidentialIPv4 IPv638
AS24253J-Stream Inc.HostingIPv4 IPv631
AS17685SQUARE ENIX CO., LTD.UnclassifiedIPv424
AS131942Gurunavi, Inc.HostingIPv422
AS18278Cable TV CorporationUnclassifiedIPv49
AS7500WIDE ProjectHostingIPv41

Adjacency

Adjacent networks

80 shown

Every AS seen directly next to AS2518 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS174Cogent Communications, LLCTransitIPv4 IPv64,543
AS2516KDDI CORPORATIONMobileIPv4 IPv63,798
AS1299Arelion Sweden ABTransitIPv4 IPv62,760
AS59105Home NOC Operators GroupUnclassifiedIPv4 IPv62,582
AS10010TOKAI Communications CorporationResidentialIPv42,001
AS9354Community Network Center Inc.ResidentialIPv41,528
AS2914NTT America, Inc.TransitIPv4 IPv61,466
AS18068Dream Wave Shizuoka Co. Ltd.UnclassifiedIPv4 IPv6734
AS4711INTEC Inc.UnclassifiedIPv4 IPv6514
AS2515Japan Network Information CenterUnclassifiedIPv4 IPv6489
AS23629Obihiro City Cable Co.,Ltd.ResidentialIPv4481
AS12552GlobalConnect ABUnclassifiedIPv4456
AS9002RETN LimitedUnclassifiedIPv4 IPv6424
AS6939Hurricane Electric LLCTransitIPv4 IPv6380
AS17961mitene internet co., ltd.UnclassifiedIPv4 IPv6372
AS9351ZTV CO.,LTDResidentialIPv4 IPv6351
AS173Nippon Telegraph and Telephone CorporationUnclassifiedIPv4301
AS24257Japan Internet Xing Co., Ltd.UnclassifiedIPv4 IPv6284
AS18070Global Network Core Co.,Ltd.ResidentialIPv4 IPv6262
AS7511SYNAPSE Co.,Ltd.ResidentialIPv4 IPv6251
AS7679QTnet,Inc.ResidentialIPv4234
AS20485Joint Stock Company TransTeleComUnclassifiedIPv4232
AS9621Okinawa Telecommunication Network Co.,IncResidentialIPv4 IPv6213
AS23661CLARA, Inc.HostingIPv4 IPv6208
AS7524ITEC HANKYU HANSHIN CO.,LTD.ResidentialIPv4198
AS4635Hong Kong Internet Exchange--Route Server 1UnclassifiedIPv4 IPv6197
AS38651MIXI, Inc.HostingIPv4 IPv6190
AS55376KCV Communications Co. Ltd.ResidentialIPv4156
AS59097Okinawa Cross Head Co., Ltd.ResidentialIPv4141
AS18260EHIME CATV CO.,LTD.UnclassifiedIPv4 IPv6132
AS131910SORACOM. INC.UnclassifiedIPv4126
AS17685SQUARE ENIX CO., LTD.UnclassifiedIPv4120
AS23783Cable Networks Akita Co.,ltd.ResidentialIPv4102
AS215724Edgevana, Inc.HostingIPv4 IPv697
AS33891Core-Backbone GmbHHostingIPv4 IPv682
AS10000Nagasaki Cable Media Inc.ResidentialIPv480
AS20562Broadband Hosting B.V.HostingIPv4 IPv679
AS146979University of NagasakiEducationIPv4 IPv669
AS24482SG.GSHostingIPv4 IPv660
AS131912Cybozu,Inc.HostingIPv4 IPv655
AS59123Kakaku.com, Inc.HostingIPv4 IPv650
AS18121Ishikawa Computer Center Co.,LTD.ResidentialIPv4 IPv648
AS2497Internet Initiative Japan Inc.UnclassifiedIPv446
AS63805Ryobi Systems Co., Ltd.UnclassifiedIPv440
AS24255Koshinomiyako Network, Inc.ResidentialIPv4 IPv638
AS24253J-Stream Inc.HostingIPv4 IPv631
AS131942Gurunavi, Inc.HostingIPv422
AS18278Cable TV CorporationUnclassifiedIPv410
AS12389PJSC RostelecomResidentialIPv42
AS7500WIDE ProjectHostingIPv41

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 AS2518, 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 14 exchanges across 6 countries and 3 regions.

ExchangeLocationTheir addressMember ports
DE-CIX FrankfurtFrankfurt, Germany80.81.194.1541,073
AMS-IX AmsterdamAmsterdam, Netherlands80.249.214.84894
Equinix Internet Exchange SingaporeSingapore, Singapore27.111.228.180490
BroadBand Internet eXchange TokyoTokyo, Japan101.203.88.47359
Coresite - Any2 WestLos Angeles, United States206.72.210.154344
Any2 CaliforniaLos Angeles, United States206.72.210.154321
Hong Kong Internet ExchangeHong Kong, China123.255.90.157307
JPIX TokyoTokyo, Japan210.171.224.181259
BroadBand Internet eXchange SingaporeSingapore, Singapore103.231.152.25151
BroadBand Internet eXchange OsakaOsaka, Japan218.100.9.44132
Equinix Internet Exchange TokyoTokyo, Japan2001:de8:5::2518:4124
JPIX OsakaOsaka, Japan103.246.232.181114
Equinix Internet Exchange OsakaOsaka, Japan203.190.227.928
Network Service Provider IXP (Distributed IX in Edo)Tokyo, Japan202.249.2.9828

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 2026-08-08 by Packet Clearing House (https://www.pch.net/ixp/data), covering 1,327 exchanges and 93,137 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.