asn.dev

Observed topology

AS19331 TWIN-LAKES

Unclassified ARIN NSP

Upstreams 5 carry this network
Downstreams 7 this network carries
Adjacent (IPv4) 12
Adjacent (IPv6) 4
Upstream graph Who carries AS19331, and who carries them, drawn as a map up to the transit-free core. 1 exchange Where AS19331 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS19331: 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
AS11758IRIS NetworksUnclassifiedIPv4 IPv6922
AS2914NTT America, Inc.TransitIPv4 IPv6362
AS174Cogent Communications, LLCTransitIPv4 IPv6295
AS6939Hurricane Electric LLCTransitIPv4247
AS11979Bluegrass Network LLCUnclassifiedIPv477

Transit

Downstream networks

inferred

Networks for which AS19331 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS395437Highland Communications LLCUnclassifiedIPv4542
AS12261DTC Communications, Inc.UnclassifiedIPv4256
AS13543City of CookevilleUnclassifiedIPv4 IPv6101
AS36367Alchemy Global Networks, LLCUnclassifiedIPv466
AS395879Identity Group Holdings LLCUnclassifiedIPv466
AS398543Carson-Newman UniversityUnclassifiedIPv466
AS14389Cash Express, LLCUnclassifiedIPv413

Adjacency

Adjacent networks

All 12

Every AS seen directly next to AS19331 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS11758IRIS NetworksUnclassifiedIPv4 IPv61,134
AS2914NTT America, Inc.TransitIPv4 IPv6886
AS395437Highland Communications LLCUnclassifiedIPv4604
AS174Cogent Communications, LLCTransitIPv4 IPv6580
AS6939Hurricane Electric LLCTransitIPv4274
AS12261DTC Communications, Inc.UnclassifiedIPv4256
AS11979Bluegrass Network LLCUnclassifiedIPv4201
AS13543City of CookevilleUnclassifiedIPv4 IPv6101
AS36367Alchemy Global Networks, LLCUnclassifiedIPv466
AS395879Identity Group Holdings LLCUnclassifiedIPv466

All 12 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-29 10:00 UTC by route-views2,rrc00, as seen from 76 BGP vantage points across 74.36M 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.