Observed topology

AS202 CENTURYLINK-LEGACY-LVLT-202 - Level 3 Parent, LLC

Unclassified ARIN

Upstreams 1 carry this network

Downstreams 72 this network carries

Adjacent (IPv4) 73

Adjacent (IPv6) 6

Upstream graph Who carries AS202, and who carries them, drawn as a map up to the transit-free core. 0 exchanges Where AS202 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS202: 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	58

Transit

Downstream networks

All 72

Networks for which AS202 was observed as the last hop before the origin, meaning it appears to provide them transit.

AS	Network	Type	Families	Paths seen
AS199563	Siemens Healthineers AG	Unclassified	IPv4	2,074
AS8681	JT (Jersey) Limited	Residential	IPv4	1,039
AS26425	Exelon Corporation	Unclassified	IPv4	840
AS14762	AMGEN, Inc.	Unclassified	IPv4	642
AS9084	Goldman Sachs International	Unclassified	IPv4	549
AS6195	The Goldman Sachs Group, Inc.	Unclassified	IPv4	548
AS23503	Exelon Corporation	Unclassified	IPv4	540
AS27564	CAPGEMINI AMERICA, INC.	Unclassified	IPv4	488
AS20053	The Descartes Systems Group Inc	Unclassified	IPv4	484
AS16294	Descartes Systems (Belgium) NV	Unclassified	IPv4	458

All 72 downstreams →

Adjacency

Adjacent networks

All 73

Every AS seen directly next to AS202 in a routing path, in either direction.

AS	Network	Type	Families	Paths seen
AS3356	Level 3 Parent, LLC	Transit	IPv4 IPv6	16,184
AS199563	Siemens Healthineers AG	Unclassified	IPv4	2,074
AS8681	JT (Jersey) Limited	Residential	IPv4	1,039
AS23503	Exelon Corporation	Unclassified	IPv4	900
AS26425	Exelon Corporation	Unclassified	IPv4	882
AS14762	AMGEN, Inc.	Unclassified	IPv4	642
AS9084	Goldman Sachs International	Unclassified	IPv4	549
AS6195	The Goldman Sachs Group, Inc.	Unclassified	IPv4	548
AS27564	CAPGEMINI AMERICA, INC.	Unclassified	IPv4	488
AS20053	The Descartes Systems Group Inc	Unclassified	IPv4	484

All 73 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-03 10:00 UTC by route-views2,rrc00, as seen from 76 BGP vantage points across 74.45M 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.