asn.dev

Observed topology

AS7725 COMCAST-7725 - Comcast Cable Communications, LLC

Unclassified ARIN Cable/DSL/ISP

Upstreams 2 carry this network
Downstreams 67 this network carries
Adjacent (IPv4) 68
Adjacent (IPv6) 8
Upstream graph Who carries AS7725, and who carries them, drawn as a map up to the transit-free core. 0 exchanges Where AS7725 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS7725: 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 IPv65,148
AS3356Level 3 Parent, LLCTransitIPv4173

Transit

Downstream networks

All 67

Networks for which AS7725 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS14725Crawford & CompanyUnclassifiedIPv4508
AS13433Cox Enterprises IncUnclassifiedIPv4 IPv6349
AS53984Wellstar Health SystemUnclassifiedIPv4230
AS13768Aptum TechnologiesHostingIPv4189
AS393385National Vision, Inc.UnclassifiedIPv4126
AS21938YAMAHA MOTOR CORPORATION, U.S.AUnclassifiedIPv4118
AS40724DeKalb County, GeorgiaUnclassifiedIPv4114
AS12211Operations & Compliance Network LLCUnclassifiedIPv4112
AS33741Dennis GroupUnclassifiedIPv4 IPv694
AS396019Comcast Cable Communications, LLCUnclassifiedIPv4 IPv688

All 67 downstreams →

Adjacency

Adjacent networks

All 69

Every AS seen directly next to AS7725 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS7922Comcast Cable Communications, LLCResidentialIPv4 IPv68,028
AS3356Level 3 Parent, LLCTransitIPv4 IPv61,053
AS14725Crawford & CompanyUnclassifiedIPv4508
AS13433Cox Enterprises IncUnclassifiedIPv4 IPv6349
AS53984Wellstar Health SystemUnclassifiedIPv4230
AS13768Aptum TechnologiesHostingIPv4189
AS393385National Vision, Inc.UnclassifiedIPv4126
AS21938YAMAHA MOTOR CORPORATION, U.S.AUnclassifiedIPv4118
AS40724DeKalb County, GeorgiaUnclassifiedIPv4114
AS12211Operations & Compliance Network LLCUnclassifiedIPv4112

All 69 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-07 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 72.97M 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.