Observed topology

AS26450 CTDI-WC

Unclassified ARIN

Upstreams 16 carry this network

Downstreams 0 this network carries

Adjacent (IPv4) 1

Adjacent (IPv6) 16

Upstream graph Who carries AS26450, and who carries them, drawn as a map up to the transit-free core. 0 exchanges Where AS26450 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 16

Networks observed carrying traffic for AS26450: 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
AS15830	Equinix (EMEA) Acquisition Enterprises B.V.	Hosting	IPv4 IPv6	214
AS701	Verizon Business	Residential	IPv6	96
AS5650	Frontier Communications of America, Inc.	Residential	IPv6	66
AS33287	Comcast Cable Communications, LLC	Unclassified	IPv6	40
AS812	Rogers Communications Canada Inc.	Mobile	IPv6	37
AS33588	Charter Communications LLC	Unclassified	IPv6	35
AS33490	Comcast Cable Communications, LLC	Unclassified	IPv6	34
AS33491	Comcast Cable Communications, LLC	Unclassified	IPv6	34
AS33652	Comcast Cable Communications, LLC	Unclassified	IPv6	34
AS40264	Charter Communications LLC	Unclassified	IPv6	34

All 16 upstreams →

Transit

Downstream networks

inferred

Networks for which AS26450 was observed as the last hop before the origin, meaning it appears to provide them transit.

No downstream observed. This network does not appear to carry transit for anyone.

Adjacency

Adjacent networks

All 16

Every AS seen directly next to AS26450 in a routing path, in either direction.

AS	Network	Type	Families	Paths seen
AS15830	Equinix (EMEA) Acquisition Enterprises B.V.	Hosting	IPv4 IPv6	214
AS701	Verizon Business	Residential	IPv6	96
AS5650	Frontier Communications of America, Inc.	Residential	IPv6	66
AS33287	Comcast Cable Communications, LLC	Unclassified	IPv6	40
AS812	Rogers Communications Canada Inc.	Mobile	IPv6	37
AS33588	Charter Communications LLC	Unclassified	IPv6	35
AS33490	Comcast Cable Communications, LLC	Unclassified	IPv6	34
AS33491	Comcast Cable Communications, LLC	Unclassified	IPv6	34
AS33652	Comcast Cable Communications, LLC	Unclassified	IPv6	34
AS40264	Charter Communications LLC	Unclassified	IPv6	34

All 16 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.