Observed topology

AS23486 NETSPAN

Residential ARIN Cable/DSL/ISP

Upstreams 4 carry this network

Downstreams 7 this network carries

Adjacent (IPv4) 11

Adjacent (IPv6) 0

Upstream graph Who carries AS23486, and who carries them, drawn as a map up to the transit-free core. 2 exchanges Where AS23486 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS23486: 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
AS174	Cogent Communications, LLC	Transit	IPv4	180
AS3491	PCCW Global (HK) Ltd.	Transit	IPv4	114
AS6939	Hurricane Electric LLC	Transit	IPv4	50
AS14907	Wikimedia Foundation Inc.	Hosting	IPv4	6

Transit

Downstream networks

inferred

Networks for which AS23486 was observed as the last hop before the origin, meaning it appears to provide them transit.

AS	Network	Type	Families	Paths seen
AS54800	Laredo ISD	Unclassified	IPv4	116
AS395112	Beaumont ISD	Unclassified	IPv4	32
AS20280	Corpus Christi ISD	Unclassified	IPv4	15
AS26670	Mission CISD	Unclassified	IPv4	15
AS29753	Brownsville Independent School District	Unclassified	IPv4	15
AS393332	McAllen Independent School District	Unclassified	IPv4	15
AS40049	Education Service Center, Region 2	Unclassified	IPv4	13

Adjacency

Adjacent networks

All 11

Every AS seen directly next to AS23486 in a routing path, in either direction.

AS	Network	Type	Families	Paths seen
AS174	Cogent Communications, LLC	Transit	IPv4	280
AS3491	PCCW Global (HK) Ltd.	Transit	IPv4	203
AS54800	Laredo ISD	Unclassified	IPv4	116
AS6939	Hurricane Electric LLC	Transit	IPv4	74
AS395112	Beaumont ISD	Unclassified	IPv4	32
AS20280	Corpus Christi ISD	Unclassified	IPv4	15
AS26670	Mission CISD	Unclassified	IPv4	15
AS29753	Brownsville Independent School District	Unclassified	IPv4	15
AS393332	McAllen Independent School District	Unclassified	IPv4	15
AS14907	Wikimedia Foundation Inc.	Hosting	IPv4	14

All 11 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-31 10:00 UTC by route-views2,rrc00, as seen from 76 BGP vantage points across 74.50M 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.