asn.dev

Observed topology

AS271 BCNET-AS

Unclassified ARIN Educational/Research

Upstreams 7 carry this network
Downstreams 16 this network carries
Adjacent (IPv4) 23
Adjacent (IPv6) 12
Upstream graph Who carries AS271, and who carries them, drawn as a map up to the transit-free core. 1 exchange Where AS271 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS271: 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
AS1299Arelion Sweden ABTransitIPv4 IPv62,436
AS6939Hurricane Electric LLCTransitIPv4 IPv61,283
AS6327Shaw CommunicationsResidentialIPv4 IPv61,259
AS6509CANARIE IncEducationIPv4 IPv6816
AS22652Videotron LteeResidentialIPv4 IPv6176
AS394256Tech Futures Interactive Inc.UnclassifiedIPv4 IPv690
AS852CommunicationsResidentialIPv412

Transit

Downstream networks

All 16

Networks for which AS271 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS393249University of British ColumbiaUnclassifiedIPv4 IPv62,778
AS11105Simon Fraser UniversityEducationIPv4 IPv61,264
AS16462University of VictoriaUnclassifiedIPv4 IPv61,243
AS4476British Columbia Institute of TechnologyEducationIPv4 IPv6586
AS395807Selkirk CollegeUnclassifiedIPv4489
AS36391TRIUMF INC.UnclassifiedIPv4 IPv6322
AS393981The University of Northern British ColumbiaUnclassifiedIPv4184
AS13764Kwantlen Polytechnic UniversityUnclassifiedIPv4120
AS62692Camosun CollegeUnclassifiedIPv4 IPv6104
AS395064Douglas CollegeUnclassifiedIPv4102

All 16 downstreams →

Adjacency

Adjacent networks

All 23

Every AS seen directly next to AS271 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS1299Arelion Sweden ABTransitIPv4 IPv65,774
AS393249University of British ColumbiaUnclassifiedIPv4 IPv62,957
AS6327Shaw CommunicationsResidentialIPv4 IPv62,807
AS6939Hurricane Electric LLCTransitIPv4 IPv62,797
AS6509CANARIE IncEducationIPv4 IPv61,644
AS11105Simon Fraser UniversityEducationIPv4 IPv61,264
AS16462University of VictoriaUnclassifiedIPv4 IPv61,243
AS4476British Columbia Institute of TechnologyEducationIPv4 IPv6586
AS395807Selkirk CollegeUnclassifiedIPv4489
AS22652Videotron LteeResidentialIPv4 IPv6446

All 23 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-26 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.14M 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.