asn.dev

Observed topology

AS11427 TWC-11427-TEXAS - Charter Communications Inc

Residential ARIN Cable/DSL/ISP

Upstreams 3 carry this network
Downstreams 128 this network carries
Adjacent (IPv4) 129
Adjacent (IPv6) 15
Upstream graph Who carries AS11427, and who carries them, drawn as a map up to the transit-free core. 0 exchanges Where AS11427 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS11427: 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
AS7843Charter Communications IncResidentialIPv4 IPv624,564
AS20115Charter Communications LLCResidentialIPv4 IPv6930
AS6453TATA COMMUNICATIONS (AMERICA) INCTransitIPv422

Transit

Downstream networks

All 128

Networks for which AS11427 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS3709City of San AntonioUnclassifiedIPv41,080
AS30175EPICORUnclassifiedIPv41,020
AS397360Texas State Technical College HarlingenUnclassifiedIPv4789
AS47050Texas A&M International UniversityUnclassifiedIPv4750
AS19115Charter Communications LLCUnclassifiedIPv4 IPv6451
AS20231Charter Communications IncUnclassifiedIPv4 IPv6367
AS18961McLane Company, Inc.UnclassifiedIPv4347
AS22391Bexar County - Information TechnologyUnclassifiedIPv4306
AS53629THE CITY NATIONAL BANK OF TAYLORUnclassifiedIPv4304
AS38191Infosys Technologies LtdUnclassifiedIPv4285

All 128 downstreams →

Adjacency

Adjacent networks

All 132

Every AS seen directly next to AS11427 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS7843Charter Communications IncResidentialIPv4 IPv637,152
AS20115Charter Communications LLCResidentialIPv4 IPv61,963
AS3709City of San AntonioUnclassifiedIPv41,080
AS30175EPICORUnclassifiedIPv41,020
AS397360Texas State Technical College HarlingenUnclassifiedIPv4789
AS47050Texas A&M International UniversityUnclassifiedIPv4750
AS20231Charter Communications IncUnclassifiedIPv4 IPv6675
AS19115Charter Communications LLCUnclassifiedIPv4 IPv6451
AS18961McLane Company, Inc.UnclassifiedIPv4347
AS22391Bexar County - Information TechnologyUnclassifiedIPv4306

All 132 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-01 10:00 UTC by route-views2,rrc00, as seen from 76 BGP vantage points across 74.48M 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.