Adjacent networks

AS209 CENTURYLINK-US-LEGACY-QWEST - CenturyLink Communications, LLC

Residential ARIN NSP

Adjacency

Adjacent networks

observed

Every AS seen directly next to AS209 in a routing path, in either direction.

AS	Network	Type	Families	Paths seen
AS3356	Level 3 Parent, LLC	Transit	IPv4 IPv6	181,637
AS22561	CenturyLink Communications, LLC	Unclassified	IPv4	35,010
AS297	National Aeronautics and Space Administration	Business	IPv4 IPv6	5,917
AS18530	Isomedia, Inc.	Hosting	IPv4 IPv6	5,040
AS396908	Laurens Technologies Internet Services	Hosting	IPv4 IPv6	3,681
AS6223	CenturyLink Communications, LLC	Unclassified	IPv4 IPv6	2,177
AS14921	CenturyLink Communications, LLC	Unclassified	IPv4	2,074
AS17402	CenturyLink Communications, LLC	Unclassified	IPv4	1,525
AS54427	NetTally, Inc	Unclassified	IPv4	1,342
AS6224	CenturyLink Communications, LLC	Unclassified	IPv4 IPv6	1,179
AS30221	T3 Communications, Inc.	Unclassified	IPv4	797
AS11255	Screamin' Banshee Technologies	Unclassified	IPv4	732
AS4296	CenturyLink Communications, LLC	Unclassified	IPv4 IPv6	700
AS4297	CenturyLink Communications, LLC	Unclassified	IPv4 IPv6	673
AS32083	Omnispring, LLC	Hosting	IPv4	549
AS64280	Palo Alto Networks, Inc	Unclassified	IPv4	506
AS400988	Salt Lake County	Unclassified	IPv4	488
AS3743	Cleveland Cliffs Steel LLC	Unclassified	IPv4	427
AS13485	Grand Canyon University	Unclassified	IPv4	427
AS17385	Orbitel Communications, LLC	Unclassified	IPv4	366
AS22522	United Launch Alliance, LLC	Unclassified	IPv4	366
AS40766	Equinox Payments	Unclassified	IPv4	366
AS11857	Money Services, Inc.	Unclassified	IPv4	360
AS3909	CenturyLink Communications, LLC	Unclassified	IPv4	300
AS3910	CenturyLink Communications, LLC	Unclassified	IPv4	291
AS13866	Computer Country	Unclassified	IPv4 IPv6	283
AS4015	CenturyLink Communications, LLC	Unclassified	IPv4 IPv6	278
AS7359	CenturyLink Communications, LLC	Unclassified	IPv4 IPv6	278
AS210	Utah Education Network	Unclassified	IPv4 IPv6	274
AS13659	INTERTECH CORPORATION	Unclassified	IPv4	244
AS21660	Baxalta Incorporated	Unclassified	IPv4	244
AS29842	East Tennessee State University	Unclassified	IPv4	244
AS16417	Cisco Systems Ironport Division	Unclassified	IPv4 IPv6	235
AS3561	CenturyLink Communications, LLC	Hosting	IPv4	230
AS6109	NDCHealth Corporation	Unclassified	IPv4	221
AS16746	CenterPoint Energy, Inc.	Unclassified	IPv4	221
AS21803	Cedar Networks	Unclassified	IPv4	216
AS10966	Alaska Airlines, Inc.	Unclassified	IPv4	183
AS16756	ABC Virtual Communications, Inc.	Unclassified	IPv4	183
AS16871	McDonagh Bros. Inc.	Unclassified	IPv4	183
AS19390	JH Compunet	Unclassified	IPv4	183
AS19800	Grant County Public Utility District	Unclassified	IPv4	183
AS21904	PowerOne	Unclassified	IPv4	183
AS22523	State of NM Administrative Office of the Courts	Unclassified	IPv4	183
AS63486	HQ USMC NAF Business & Support Services Division (MR)	Unclassified	IPv4	183
AS394046	JELD WEN	Unclassified	IPv4	183
AS394329	STATE OF UTAH COURTS	Unclassified	IPv4	183
AS13684	Medtronic, Incorporated	Unclassified	IPv4	175
AS23175	PogoZone	Unclassified	IPv4	174
AS62566	Starbucks Coffee Company	Unclassified	IPv4	172

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.

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.