Observed topology

AS25956 LOGIXCOMM-AS4

Unclassified ARIN

Upstreams 3 carry this network

Downstreams 24 this network carries

Adjacent (IPv4) 27

Adjacent (IPv6) 5

Upstream graph Who carries AS25956, and who carries them, drawn as a map up to the transit-free core. 0 exchanges Where AS25956 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS25956: 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
AS6461	Zayo Bandwidth	Transit	IPv4 IPv6	4,653
AS1299	Arelion Sweden AB	Transit	IPv4 IPv6	3,647
AS174	Cogent Communications, LLC	Transit	IPv4 IPv6	1,926

Transit

Downstream networks

All 24

Networks for which AS25956 was observed as the last hop before the origin, meaning it appears to provide them transit.

AS	Network	Type	Families	Paths seen
AS11215	Logix	Unclassified	IPv4	1,044
AS394646	Eagle Eye Networks, Inc	Unclassified	IPv4	327
AS14382	Education Service Center	Unclassified	IPv4 IPv6	297
AS29730	NovoLink Communications, Inc. - Houston	Unclassified	IPv4	174
AS11012	The Digital Design Company	Unclassified	IPv4	116
AS402382	Netrio,	Unclassified	IPv4	82
AS54855	Interface Security Systems LLC	Unclassified	IPv4	57
AS398780	Bluebonnet Electric Cooperative, Inc.	Unclassified	IPv4	57
AS397542	Austin Convention Center Department	Unclassified	IPv4	55
AS27414	Caris Diagnostics, Inc.	Unclassified	IPv4	43

All 24 downstreams →

Adjacency

Adjacent networks

All 27

Every AS seen directly next to AS25956 in a routing path, in either direction.

AS	Network	Type	Families	Paths seen
AS6461	Zayo Bandwidth	Transit	IPv4 IPv6	5,815
AS1299	Arelion Sweden AB	Transit	IPv4 IPv6	4,619
AS174	Cogent Communications, LLC	Transit	IPv4 IPv6	2,319
AS11215	Logix	Unclassified	IPv4	1,102
AS394646	Eagle Eye Networks, Inc	Unclassified	IPv4	327
AS14382	Education Service Center	Unclassified	IPv4 IPv6	297
AS29730	NovoLink Communications, Inc. - Houston	Unclassified	IPv4	174
AS11012	The Digital Design Company	Unclassified	IPv4	116
AS402382	Netrio,	Unclassified	IPv4	82
AS54855	Interface Security Systems LLC	Unclassified	IPv4	57

All 27 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-23 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.15M 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.