Observed topology

AS54048 CVIN

Unclassified ARIN

Upstreams 3 carry this network

Downstreams 18 this network carries

Adjacent (IPv4) 21

Adjacent (IPv6) 0

Upstream graph Who carries AS54048, and who carries them, drawn as a map up to the transit-free core. 0 exchanges Where AS54048 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS54048: 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.

AS	Network	Type	Families	Paths seen
AS2152	CENIC	Unclassified	IPv4	313
AS1299	Arelion Sweden AB	Transit	IPv4	194
AS6939	Hurricane Electric LLC	Transit	IPv4	11

Transit

Downstream networks

All 18

Networks for which AS54048 was observed as the last hop before the origin, meaning it appears to provide them transit.

AS	Network	Type	Families	Paths seen
AS18632	Volcano Vision, Inc.	Unclassified	IPv4	1,680
AS15121	Calaveras Internet Company	Unclassified	IPv4	357
AS26421	Ponderosa Cablevision	Unclassified	IPv4	225
AS14750	Sierra Tel Internet	Unclassified	IPv4	186
AS46867	Sebastian	Unclassified	IPv4	151
AS399033	VARCOMM BROADBAND, INC.	Unclassified	IPv4	68
AS986	Kingsburg Media Foundation	Unclassified	IPv4	62
AS62932	VUSD	Unclassified	IPv4	62
AS393661	County of Nevada	Unclassified	IPv4	62
AS30263	Cal-Ore Telephone Co.	Unclassified	IPv4	61

All 18 downstreams →

Adjacency

Adjacent networks

All 21

Every AS seen directly next to AS54048 in a routing path, in either direction.

AS	Network	Type	Families	Paths seen
AS2152	CENIC	Unclassified	IPv4	2,892
AS18632	Volcano Vision, Inc.	Unclassified	IPv4	1,688
AS1299	Arelion Sweden AB	Transit	IPv4	616
AS15121	Calaveras Internet Company	Unclassified	IPv4	357
AS26421	Ponderosa Cablevision	Unclassified	IPv4	225
AS14750	Sierra Tel Internet	Unclassified	IPv4	186
AS46867	Sebastian	Unclassified	IPv4	151
AS6939	Hurricane Electric LLC	Transit	IPv4	83
AS399033	VARCOMM BROADBAND, INC.	Unclassified	IPv4	68
AS30263	Cal-Ore Telephone Co.	Unclassified	IPv4	65

All 21 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-16 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.23M 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.