asn.dev

Observed topology

AS33652 CMCS - Comcast Cable Communications, LLC

Unclassified ARIN Cable/DSL/ISP

Upstreams 2 carry this network
Downstreams 71 this network carries
Adjacent (IPv4) 72
Adjacent (IPv6) 8
Upstream graph Who carries AS33652, and who carries them, drawn as a map up to the transit-free core. 0 exchanges Where AS33652 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS33652: 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.

ASNetworkTypeFamiliesPaths seen
AS7922Comcast Cable Communications, LLCResidentialIPv4 IPv66,322
AS3356Level 3 Parent, LLCTransitIPv4 IPv6114

Transit

Downstream networks

All 71

Networks for which AS33652 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS18676Avaya LLCUnclassifiedIPv41,429
AS17307NTT Global Networks IncorporatedUnclassifiedIPv4622
AS15071BAX GLOBALUnclassifiedIPv4272
AS54053Realogy Group LLCUnclassifiedIPv4212
AS12156City of Aurora ColoradoUnclassifiedIPv4138
AS19076Weld County GovernmentUnclassifiedIPv4125
AS64246Cator, Ruma & Associates, Co.UnclassifiedIPv4 IPv6125
AS35928BECKMAN COULTER, INC.UnclassifiedIPv4120
AS36551Compassion International, Inc.UnclassifiedIPv4117
AS395980Comcast Cable Communications, LLCUnclassifiedIPv4112

All 71 downstreams →

Adjacency

Adjacent networks

All 73

Every AS seen directly next to AS33652 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS7922Comcast Cable Communications, LLCResidentialIPv4 IPv610,499
AS18676Avaya LLCUnclassifiedIPv41,429
AS3356Level 3 Parent, LLCTransitIPv4 IPv61,201
AS17307NTT Global Networks IncorporatedUnclassifiedIPv4622
AS15071BAX GLOBALUnclassifiedIPv4272
AS54053Realogy Group LLCUnclassifiedIPv4212
AS12156City of Aurora ColoradoUnclassifiedIPv4138
AS19076Weld County GovernmentUnclassifiedIPv4125
AS64246Cator, Ruma & Associates, Co.UnclassifiedIPv4 IPv6125
AS35928BECKMAN COULTER, INC.UnclassifiedIPv4120

All 73 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-11 10:00 UTC by route-views2,rrc00, as seen from 74 BGP vantage points across 73.24M 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.