asn.dev

Observed topology

AS19255 YOUR-ORG-INC-NA - YOUR.ORG, INC.

Hosting ARIN

Upstreams 8 carry this network
Downstreams 3 this network carries
Adjacent (IPv4) 11
Adjacent (IPv6) 6
Upstream graph Who carries AS19255, and who carries them, drawn as a map up to the transit-free core. 4 exchanges Where AS19255 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS19255: 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
AS23352DEFT.COMHostingIPv4 IPv6965
AS3257GTT Communications Inc.TransitIPv4 IPv6157
AS6939Hurricane Electric LLCTransitIPv4 IPv6112
AS174Cogent Communications, LLCTransitIPv4 IPv6105
AS7922Comcast Cable Communications, LLCResidentialIPv4 IPv6104
AS6762TELECOM ITALIA SPARKLE S.p.A.TransitIPv4 IPv670
AS24482SG.GSHostingIPv49
AS20764CJSC RASCOMUnclassifiedIPv42

Transit

Downstream networks

inferred

Networks for which AS19255 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS18905YOUR.ORG, INC.UnclassifiedIPv456
AS26943YOUR.ORG, INC.UnclassifiedIPv444
AS13331MetaPeerHostingIPv420

Adjacency

Adjacent networks

All 11

Every AS seen directly next to AS19255 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS23352DEFT.COMHostingIPv4 IPv6985
AS3257GTT Communications Inc.TransitIPv4 IPv6193
AS6939Hurricane Electric LLCTransitIPv4 IPv6147
AS174Cogent Communications, LLCTransitIPv4 IPv6122
AS7922Comcast Cable Communications, LLCResidentialIPv4 IPv6112
AS6762TELECOM ITALIA SPARKLE S.p.A.TransitIPv4 IPv670
AS18905YOUR.ORG, INC.UnclassifiedIPv456
AS26943YOUR.ORG, INC.UnclassifiedIPv444
AS13331MetaPeerHostingIPv420
AS24482SG.GSHostingIPv413

All 11 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-10 10:00 UTC by route-views2,rrc00, as seen from 74 BGP vantage points across 71.97M 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.