Observed topology

AS33654 CMCS

Unclassified ARIN Cable/DSL/ISP

Upstreams 1 carry this network

Downstreams 14 this network carries

Adjacent (IPv4) 15

Adjacent (IPv6) 4

Upstream graph Who carries AS33654, and who carries them, drawn as a map up to the transit-free core. 0 exchanges Where AS33654 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS33654: 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
AS7922	Comcast Cable Communications, LLC	Residential	IPv6	512

Transit

Downstream networks

All 14

Networks for which AS33654 was observed as the last hop before the origin, meaning it appears to provide them transit.

AS	Network	Type	Families	Paths seen
AS394037	RIO CITIES	Unclassified	IPv4 IPv6	136
AS54113	Fastly, Inc.	Hosting	IPv4 IPv6	91
AS62621	SUMMITELEC	Unclassified	IPv4 IPv6	90
AS400445	NUSENDA FEDERAL CREDIT UNION	Unclassified	IPv4	67
AS401002	Bridgers & Paxton Consulting Engineers, Inc.	Unclassified	IPv4	59
AS36424	Home Security Systems, LLC	Unclassified	IPv4	58
AS30331	St. Vincent Hospital	Unclassified	IPv4	48
AS394997	Nexum, Inc.	Unclassified	IPv4	16
AS397167	Presbyterian Healthcare Services	Unclassified	IPv4	11
AS3388	University of New Mexico	Education	IPv4	10

All 14 downstreams →

Adjacency

Adjacent networks

All 15

Every AS seen directly next to AS33654 in a routing path, in either direction.

AS	Network	Type	Families	Paths seen
AS7922	Comcast Cable Communications, LLC	Residential	IPv4 IPv6	1,126
AS394037	RIO CITIES	Unclassified	IPv4 IPv6	136
AS54113	Fastly, Inc.	Hosting	IPv4 IPv6	91
AS62621	SUMMITELEC	Unclassified	IPv4 IPv6	90
AS400445	NUSENDA FEDERAL CREDIT UNION	Unclassified	IPv4	67
AS401002	Bridgers & Paxton Consulting Engineers, Inc.	Unclassified	IPv4	59
AS36424	Home Security Systems, LLC	Unclassified	IPv4	58
AS30331	St. Vincent Hospital	Unclassified	IPv4	48
AS394997	Nexum, Inc.	Unclassified	IPv4	16
AS397167	Presbyterian Healthcare Services	Unclassified	IPv4	11

All 15 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-26 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.14M 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.