Observed topology

AS40627 RC-COLO1

Hosting ARIN

Upstreams 41 carry this network

Downstreams 0 this network carries

Adjacent (IPv4) 41

Adjacent (IPv6) 1

Upstream graph Who carries AS40627, and who carries them, drawn as a map up to the transit-free core. 18 exchanges Where AS40627 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 41

Networks observed carrying traffic for AS40627: 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.

AS	Network	Type	Families	Paths seen
AS3356	Level 3 Parent, LLC	Transit	IPv4 IPv6	677
AS1299	Arelion Sweden AB	Transit	IPv4	335
AS7922	Comcast Cable Communications, LLC	Residential	IPv4	142
AS6939	Hurricane Electric LLC	Transit	IPv4	141
AS4755	TATA Communications formerly VSNL is Leading ISP	Hosting	IPv4	120
AS6453	TATA COMMUNICATIONS (AMERICA) INC	Transit	IPv4	119
AS2914	NTT America, Inc.	Transit	IPv4	62
AS7018	AT&T Enterprises, LLC	Residential	IPv4	52
AS34549	meerfarbig GmbH & Co. KG	Hosting	IPv4	45
AS50304	Blix Solutions AS	Unclassified	IPv4	30

All 41 upstreams →

Transit

Downstream networks

inferred

Networks for which AS40627 was observed as the last hop before the origin, meaning it appears to provide them transit.

No downstream observed. This network does not appear to carry transit for anyone.

Adjacency

Adjacent networks

All 41

Every AS seen directly next to AS40627 in a routing path, in either direction.

AS	Network	Type	Families	Paths seen
AS3356	Level 3 Parent, LLC	Transit	IPv4 IPv6	677
AS1299	Arelion Sweden AB	Transit	IPv4	335
AS7922	Comcast Cable Communications, LLC	Residential	IPv4	142
AS6939	Hurricane Electric LLC	Transit	IPv4	141
AS4755	TATA Communications formerly VSNL is Leading ISP	Hosting	IPv4	120
AS6453	TATA COMMUNICATIONS (AMERICA) INC	Transit	IPv4	119
AS2914	NTT America, Inc.	Transit	IPv4	62
AS7018	AT&T Enterprises, LLC	Residential	IPv4	52
AS34549	meerfarbig GmbH & Co. KG	Hosting	IPv4	45
AS50304	Blix Solutions AS	Unclassified	IPv4	30

All 41 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-25 12:00 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.

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.