Observed topology

AS33662 CMCS - Comcast Cable Communications, LLC

Unclassified APNIC Cable/DSL/ISP

Upstreams 2 carry this network

Downstreams 54 this network carries

Adjacent (IPv4) 55

Adjacent (IPv6) 6

Upstream graph Who carries AS33662, and who carries them, drawn as a map up to the transit-free core. 0 exchanges Where AS33662 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS33662: 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	IPv4 IPv6	4,086
AS3356	Level 3 Parent, LLC	Transit	IPv4	38

Transit

Downstream networks

All 54

Networks for which AS33662 was observed as the last hop before the origin, meaning it appears to provide them transit.

AS	Network	Type	Families	Paths seen
AS36538	San Jacinto College District	Unclassified	IPv4	419
AS31128	Apple Distribution International Ltd.	Unclassified	IPv4 IPv6	180
AS46209	GHC911	Unclassified	IPv4 IPv6	122
AS4057	Mechant's Choice Payment Solutions	Unclassified	IPv4	120
AS20204	NovoLink Communications, Inc. - Houston	Unclassified	IPv4	120
AS19195	MEGLOBAL AMERICAS INC.	Unclassified	IPv4	108
AS63483	Skynet	Unclassified	IPv4	108
AS14296	Spring Fire Department	Unclassified	IPv4 IPv6	94
AS2386	AT&T Enterprises, LLC	Unclassified	IPv4	86
AS2134	Santander Global Technology and Operations, S.L.	Unclassified	IPv4	82

All 54 downstreams →

Adjacency

Adjacent networks

All 56

Every AS seen directly next to AS33662 in a routing path, in either direction.

AS	Network	Type	Families	Paths seen
AS7922	Comcast Cable Communications, LLC	Residential	IPv4 IPv6	6,310
AS3356	Level 3 Parent, LLC	Transit	IPv4 IPv6	663
AS36538	San Jacinto College District	Unclassified	IPv4	419
AS31128	Apple Distribution International Ltd.	Unclassified	IPv4 IPv6	180
AS46209	GHC911	Unclassified	IPv4 IPv6	122
AS4057	Mechant's Choice Payment Solutions	Unclassified	IPv4	120
AS20204	NovoLink Communications, Inc. - Houston	Unclassified	IPv4	120
AS19195	MEGLOBAL AMERICAS INC.	Unclassified	IPv4	108
AS63483	Skynet	Unclassified	IPv4	108
AS14296	Spring Fire Department	Unclassified	IPv4 IPv6	94

All 56 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-05 10:00 UTC by route-views2,rrc00, as seen from 76 BGP vantage points across 73.57M 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.