asn.dev

Observed topology

AS2518 BIGLOBE BIGLOBE Inc.

Residential APNIC NSP

Upstreams 13 carry this network
Downstreams 38 this network carries
Adjacent (IPv4) 52
Adjacent (IPv6) 34
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 13

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 IPv6961
AS6939Hurricane Electric LLCTransitIPv4 IPv6294
AS1299Arelion Sweden ABTransitIPv4 IPv6194
AS9002RETN LimitedUnclassifiedIPv4 IPv6139
AS2914NTT America, Inc.TransitIPv4118
AS4635Hong Kong Internet Exchange--Route Server 1UnclassifiedIPv465
AS24482SG.GSHostingIPv4 IPv635
AS2497Internet Initiative Japan Inc.UnclassifiedIPv433
AS4657StarHub LtdResidentialIPv433
AS20485Joint Stock Company TransTeleComUnclassifiedIPv433

All 13 upstreams →

Transit

Downstream networks

All 38

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

ASNetworkTypeFamiliesPaths seen
AS10010TOKAI Communications CorporationResidentialIPv41,228
AS18068Dream Wave Shizuoka Co. Ltd.UnclassifiedIPv4 IPv6647
AS23629Obihiro City Cable Co.,Ltd.ResidentialIPv4503
AS4711INTEC Inc.UnclassifiedIPv4 IPv6462
AS7524ITEC HANKYU HANSHIN CO.,LTD.ResidentialIPv4344
AS17961mitene internet co., ltd.UnclassifiedIPv4 IPv6307
AS9354Community Network Center Inc.ResidentialIPv4299
AS7511SYNAPSE Co.,Ltd.ResidentialIPv4 IPv6281
AS23661CLARA, Inc.HostingIPv4 IPv6218
AS9621Okinawa Telecommunication Network Co.,IncResidentialIPv4 IPv6200

All 38 downstreams →

Adjacency

Adjacent networks

All 52

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

ASNetworkTypeFamiliesPaths seen
AS174Cogent Communications, LLCTransitIPv4 IPv63,670
AS2516KDDI CORPORATIONMobileIPv4 IPv63,334
AS59105Home NOC Operators GroupUnclassifiedIPv4 IPv62,783
AS1299Arelion Sweden ABTransitIPv4 IPv62,714
AS2914NTT America, Inc.TransitIPv4 IPv61,802
AS9354Community Network Center Inc.ResidentialIPv4 IPv61,259
AS10010TOKAI Communications CorporationResidentialIPv41,228
AS18068Dream Wave Shizuoka Co. Ltd.UnclassifiedIPv4 IPv6689
AS33891Core-Backbone GmbHHostingIPv4 IPv6571
AS9002RETN LimitedUnclassifiedIPv4 IPv6515

All 52 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-11 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.47M 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.