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Adjacent networks

AS21928 T-MOBILE-AS21928

Mobile ARIN

Adjacency

Adjacent networks

observed

Every AS seen directly next to AS21928 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS174Cogent Communications, LLCTransitIPv4 IPv65,092
AS6939Hurricane Electric LLCTransitIPv4 IPv64,832
AS6461Zayo BandwidthTransitIPv4 IPv63,368
AS3356Level 3 Parent, LLCTransitIPv4 IPv61,208
AS20205Amplex Electric, Inc.ResidentialIPv4222
AS9002RETN LimitedUnclassifiedIPv4 IPv6134
AS7922Comcast Cable Communications, LLCResidentialIPv4126
AS24482SG.GSHostingIPv4 IPv6126
AS400318Versa Networks, Inc.HostingIPv465
AS22140T-Mobile USA, Inc.UnclassifiedIPv4 IPv662
AS394256Tech Futures Interactive Inc.UnclassifiedIPv4 IPv659
AS34927iFog GmbHHostingIPv4 IPv640
AS35280F5 Networks SARLHostingIPv4 IPv634
AS6424EDGOO NETWORKS UNIPESSOAL LDAHostingIPv47
AS293ESnetUnclassifiedIPv46
AS3130RGnet OUUnclassifiedIPv46
AS7575Australian Academic and Research Network (AARNet)EducationIPv46
AS4230CLARO S.A.ResidentialIPv45
AS16550Google LLCUnclassifiedIPv43
AS52025ParadoxNetworks LimitedUnclassifiedIPv42

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 2026-10-13 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.22M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.