asn.dev

Observed topology

AS3 MIT-GATEWAYS

Education ARIN Educational/Research

Upstreams 10 carry this network
Downstreams 4 this network carries
Adjacent (IPv4) 15
Adjacent (IPv6) 6
Upstream graph Who carries AS3, and who carries them, drawn as a map up to the transit-free core. 1 exchange Where AS3 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS3: 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
AS3356Level 3 Parent, LLCTransitIPv4 IPv62,731
AS174Cogent Communications, LLCTransitIPv4 IPv61,882
AS6939Hurricane Electric LLCTransitIPv4 IPv6555
AS11537Internet2UnclassifiedIPv4 IPv6194
AS7015Comcast Cable Communications, LLCResidentialIPv478
AS293ESnetUnclassifiedIPv471
AS11164Internet2EducationIPv4 IPv670
AS266306CENTRALNETT SERVICOS LTDAUnclassifiedIPv68
AS138279Onepipe Telecom Pvt LtdUnclassifiedIPv45
AS133296Web Werks India Pvt. Ltd.ResidentialIPv44

Transit

Downstream networks

inferred

Networks for which AS3 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS147199Bsoft India Technologies Private LimitedUnclassifiedIPv438
AS35753Etihad Salam Telecom CJSCUnclassifiedIPv47
AS22608Public Utility District No. 1 of Okanogan CountyUnclassifiedIPv41
AS54755Desert Winds Wireless IncUnclassifiedIPv41

Adjacency

Adjacent networks

All 16

Every AS seen directly next to AS3 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS3356Level 3 Parent, LLCTransitIPv4 IPv62,731
AS174Cogent Communications, LLCTransitIPv4 IPv61,882
AS6939Hurricane Electric LLCTransitIPv4 IPv6555
AS11537Internet2UnclassifiedIPv4 IPv6194
AS7015Comcast Cable Communications, LLCResidentialIPv478
AS293ESnetUnclassifiedIPv471
AS11164Internet2EducationIPv4 IPv670
AS133296Web Werks India Pvt. Ltd.ResidentialIPv442
AS147199Bsoft India Technologies Private LimitedUnclassifiedIPv438
AS35753Etihad Salam Telecom CJSCUnclassifiedIPv414

All 16 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-21 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.