asn.dev

Observed topology

AS38858 SOMERVILLE-AS-AU-AP - Somerville

Unclassified APNIC

Upstreams 7 carry this network
Downstreams 2 this network carries
Adjacent (IPv4) 9
Adjacent (IPv6) 0
Upstream graph Who carries AS38858, and who carries them, drawn as a map up to the transit-free core. 7 exchanges Where AS38858 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS38858: 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
AS1221Telstra LimitedMobileIPv4293
AS4826Vocus Connect International BackboneUnclassifiedIPv4126
AS6939Hurricane Electric LLCTransitIPv4103
AS24482SG.GSHostingIPv48
AS24115EquinixHostingIPv45
AS64073Vetta GroupUnclassifiedIPv44
AS4608Asia Pacific Network Information CentreUnclassifiedIPv42

Transit

Downstream networks

inferred

Networks for which AS38858 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS133326SabervoxHostingIPv421
AS138017Abbotsleigh SchoolUnclassifiedIPv43

Adjacency

Adjacent networks

observed

Every AS seen directly next to AS38858 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS1221Telstra LimitedMobileIPv4293
AS4826Vocus Connect International BackboneUnclassifiedIPv4150
AS6939Hurricane Electric LLCTransitIPv4103
AS133326SabervoxHostingIPv421
AS24482SG.GSHostingIPv48
AS24115EquinixHostingIPv45
AS64073Vetta GroupUnclassifiedIPv44
AS138017Abbotsleigh SchoolUnclassifiedIPv43
AS4608Asia Pacific Network Information CentreUnclassifiedIPv42

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-07 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 72.97M 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.