Adjacent networks

AS21947 BCI

Hosting APNIC

Adjacency

Adjacent networks

observed

Every AS seen directly next to AS21947 in a routing path, in either direction.

AS	Network	Type	Families	Paths seen
AS1299	Arelion Sweden AB	Transit	IPv4 IPv6	871
AS2914	NTT America, Inc.	Transit	IPv4 IPv6	394
AS6939	Hurricane Electric LLC	Transit	IPv4 IPv6	334
AS15305	Syringa Networks, LLC	Unclassified	IPv4 IPv6	145
AS395861	Medical Imaging Associates of Idaho Falls, Inc.	Unclassified	IPv4	136
AS397162	Sumofiber	Unclassified	IPv4 IPv6	122
AS46324	Advanced Stream Inc.	Unclassified	IPv4	119
AS27391	Washington Corporations	Unclassified	IPv4	105
AS22785	GLACIER BANCORP INC	Unclassified	IPv4	102
AS15331	Blackfoot Telephone Cooperative, Inc.	Unclassified	IPv4 IPv6	95
AS402935	City	Unclassified	IPv4 IPv6	87
AS9002	RETN Limited	Unclassified	IPv4 IPv6	86
AS33521	Missoula County Public Schools	Unclassified	IPv4	59
AS54410	Bozeman Deaconess Health Services	Unclassified	IPv4	59
AS3130	RGnet OU	Unclassified	IPv4	55
AS394256	Tech Futures Interactive Inc.	Unclassified	IPv4 IPv6	51
AS24482	SG.GS	Hosting	IPv4 IPv6	46
AS1378	Interbel Telephone Cooperative, Inc.	Unclassified	IPv4	42
AS33281	BRIGHAM YOUNG UNIVERSITY - IDAHO	Unclassified	IPv4 IPv6	41
AS20274	Flathead Valley Community College	Unclassified	IPv4	39
AS13590	Marcus Daly Memorial Hospital Corporation	Unclassified	IPv4	34
AS7575	Australian Academic and Research Network (AARNet)	Education	IPv4	31
AS393630	Avantguard Monitoring Centers	Unclassified	IPv4	17
AS398437	Hot Springs Telephone Company	Unclassified	IPv4	16
AS293	ESnet	Unclassified	IPv4	2
AS34927	iFog GmbH	Hosting	IPv6	1

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 2026-10-18 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.17M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.