Observed topology

AS40703 WBD-AS40703

Unclassified ARIN

Upstreams 10 carry this network

Downstreams 1 this network carries

Adjacent (IPv4) 11

Adjacent (IPv6) 0

Upstream graph Who carries AS40703, and who carries them, drawn as a map up to the transit-free core. 0 exchanges Where AS40703 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS40703: 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
AS7018	AT&T Enterprises, LLC	Residential	IPv4	120
AS5662	Turner Broadcasting System, Inc.	Hosting	IPv4	119
AS6461	Zayo Bandwidth	Transit	IPv4	110
AS13237	euNetworks GmbH	Unclassified	IPv4	61
AS2686	AT&T Enterprises, LLC	Unclassified	IPv4	60
AS8220	COLT Technology Services Group Limited	Hosting	IPv4	58
AS2687	AT&T Enterprises, LLC	Unclassified	IPv4	57
AS11014	CPS	Residential	IPv4	36
AS16814	NSS S.A.	Unclassified	IPv4	27
AS2685	AT&T Enterprises, LLC	Unclassified	IPv4	6

Transit

Downstream networks

inferred

Networks for which AS40703 was observed as the last hop before the origin, meaning it appears to provide them transit.

AS	Network	Type	Families	Paths seen
AS11726	WB Games Inc.	Unclassified	IPv4	59

Adjacency

Adjacent networks

All 11

Every AS seen directly next to AS40703 in a routing path, in either direction.

AS	Network	Type	Families	Paths seen
AS7018	AT&T Enterprises, LLC	Residential	IPv4	179
AS5662	Turner Broadcasting System, Inc.	Hosting	IPv4	119
AS6461	Zayo Bandwidth	Transit	IPv4	110
AS13237	euNetworks GmbH	Unclassified	IPv4	61
AS2686	AT&T Enterprises, LLC	Unclassified	IPv4	60
AS11726	WB Games Inc.	Unclassified	IPv4	59
AS8220	COLT Technology Services Group Limited	Hosting	IPv4	58
AS2687	AT&T Enterprises, LLC	Unclassified	IPv4	57
AS11014	CPS	Residential	IPv4	36
AS16814	NSS S.A.	Unclassified	IPv4	27

All 11 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.