asn.dev

Observed topology

AS2518 BIGLOBE - BIGLOBE Inc.

Residential APNIC NSP

Upstreams 14 carry this network
Downstreams 37 this network carries
Adjacent (IPv4) 52
Adjacent (IPv6) 31
Upstream graph Who carries AS2518, and who carries them, drawn as a map up to the transit-free core. 14 exchanges Where AS2518 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 14

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 IPv6801
AS6939Hurricane Electric LLCTransitIPv4 IPv6324
AS1299Arelion Sweden ABTransitIPv4 IPv6195
AS2914NTT America, Inc.TransitIPv4150
AS4637Telstra GlobalUnclassifiedIPv4128
AS9002RETN LimitedUnclassifiedIPv4 IPv6123
AS4635Hong Kong Internet Exchange--Route Server 1UnclassifiedIPv465
AS24482SG.GSHostingIPv4 IPv635
AS2497Internet Initiative Japan Inc.UnclassifiedIPv433
AS20485Joint Stock Company TransTeleComUnclassifiedIPv433

All 14 upstreams →

Transit

Downstream networks

All 37

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

ASNetworkTypeFamiliesPaths seen
AS10010TOKAI Communications CorporationResidentialIPv4 IPv61,178
AS18068Dream Wave Shizuoka Co. Ltd.UnclassifiedIPv4 IPv6545
AS23629Obihiro City Cable Co.,Ltd.ResidentialIPv4485
AS4711INTEC Inc.UnclassifiedIPv4 IPv6453
AS7524ITEC HANKYU HANSHIN CO.,LTD.ResidentialIPv4426
AS17961mitene internet co., ltd.UnclassifiedIPv4 IPv6299
AS9354Community Network Center Inc.ResidentialIPv4291
AS7511SYNAPSE Co.,Ltd.ResidentialIPv4 IPv6283
AS9621Okinawa Telecommunication Network Co.,IncResidentialIPv4 IPv6214
AS23661CLARA, Inc.HostingIPv4 IPv6206

All 37 downstreams →

Adjacency

Adjacent networks

All 52

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

ASNetworkTypeFamiliesPaths seen
AS2516KDDI CORPORATIONMobileIPv4 IPv63,445
AS174Cogent Communications, LLCTransitIPv4 IPv63,231
AS59105Home NOC Operators GroupUnclassifiedIPv4 IPv62,753
AS1299Arelion Sweden ABTransitIPv4 IPv62,681
AS2914NTT America, Inc.TransitIPv4 IPv62,061
AS9354Community Network Center Inc.ResidentialIPv41,230
AS10010TOKAI Communications CorporationResidentialIPv4 IPv61,178
AS18068Dream Wave Shizuoka Co. Ltd.UnclassifiedIPv4 IPv6580
AS23629Obihiro City Cable Co.,Ltd.ResidentialIPv4485
AS2515Japan Network Information CenterUnclassifiedIPv4 IPv6463

All 52 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-11 10:00 UTC by route-views2,rrc00, as seen from 74 BGP vantage points across 73.24M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.

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. 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.

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