asn.dev

Observed topology

AS20009 WADSNET - The City of Wadsworth

Unclassified ARIN

Upstreams 4 carry this network
Downstreams 1 this network carries
Adjacent (IPv4) 5
Adjacent (IPv6) 4
Upstream graph Who carries AS20009, and who carries them, drawn as a map up to the transit-free core. 1 exchange Where AS20009 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS20009: 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
AS396238FairlawnGig.netResidentialIPv4 IPv6196
AS174Cogent Communications, LLCTransitIPv4 IPv688
AS19009OneClevelandUnclassifiedIPv412
AS20205Amplex Electric, Inc.ResidentialIPv4 IPv65

Transit

Downstream networks

inferred

Networks for which AS20009 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS47046CityLinkUnclassifiedIPv4 IPv6234

Adjacency

Adjacent networks

observed

Every AS seen directly next to AS20009 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS396238FairlawnGig.netResidentialIPv4 IPv6359
AS47046CityLinkUnclassifiedIPv4 IPv6234
AS174Cogent Communications, LLCTransitIPv4 IPv6148
AS19009OneClevelandUnclassifiedIPv419
AS20205Amplex Electric, Inc.ResidentialIPv4 IPv69

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-01 10:00 UTC by route-views2,rrc00, as seen from 76 BGP vantage points across 74.48M 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.