asn.dev

Observed topology

AS46849 TLSN-TX

Upstreams 2 carry this network
Downstreams 14 this network carries
Adjacent (IPv4) 17
Adjacent (IPv6) 3

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS46849: 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
AS6939Hurricane Electric LLCTransitIPv4 IPv6258
AS174Cogent Communications, LLCTransitIPv4 IPv6219

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.

Transit

Downstream networks

inferred

Networks for which AS46849 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS20058Totelcom Communications, LLCUnclassifiedIPv4929
AS16857Central Texas TelecommunicationsUnclassifiedIPv4872
AS23158ETEX COMMUNICATIONS, LLCUnclassifiedIPv4833
AS46719COMCELL INC.UnclassifiedIPv4694
AS46853Southwest Texas CommunicationsUnclassifiedIPv4523
AS46694South Plains Telephone Cooperative, Inc.UnclassifiedIPv4493
AS16823Nortex Communications CompanyUnclassifiedIPv4398
AS22598ALENCO COMMUNICATIONS, INCUnclassifiedIPv4264
AS399435Lipan Telephone CompanyUnclassifiedIPv4256
AS30072Wes-Tex Telecommunications LTDUnclassifiedIPv4210
AS22353Taylor Telephone Cooperative, Inc.UnclassifiedIPv4185
AS27235COLORADO VALLEY COMMUNICATIONS, INC.UnclassifiedIPv4135
AS14368Brazos InternetUnclassifiedIPv4130
AS40405Brazoria I-netUnclassifiedIPv64

Adjacency

Adjacent networks

22 shown

Every AS seen directly next to AS46849 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS6939Hurricane Electric LLCTransitIPv4 IPv66,462
AS20058Totelcom Communications, LLCUnclassifiedIPv41,802
AS174Cogent Communications, LLCTransitIPv4 IPv61,624
AS23158ETEX COMMUNICATIONS, LLCUnclassifiedIPv41,228
AS16857Central Texas TelecommunicationsUnclassifiedIPv41,156
AS46719COMCELL INC.UnclassifiedIPv4696
AS46853Southwest Texas CommunicationsUnclassifiedIPv4523
AS46694South Plains Telephone Cooperative, Inc.UnclassifiedIPv4493
AS16823Nortex Communications CompanyUnclassifiedIPv4398
AS22598ALENCO COMMUNICATIONS, INCUnclassifiedIPv4264
AS399435Lipan Telephone CompanyUnclassifiedIPv4256
AS30072Wes-Tex Telecommunications LTDUnclassifiedIPv4210
AS22353Taylor Telephone Cooperative, Inc.UnclassifiedIPv4185
AS27235COLORADO VALLEY COMMUNICATIONS, INC.UnclassifiedIPv4135
AS14368Brazos InternetUnclassifiedIPv4130
AS18618west central wirelessUnclassifiedIPv482
AS23481Hill Country Telephone Cooperative, Inc.UnclassifiedIPv447
AS40405Brazoria I-netUnclassifiedIPv64

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.

Interconnection

Exchange presence

recorded

Internet exchanges where Packet Clearing House has a port recorded for AS46849, largest fabric first. An exchange is shared switching where networks interconnect directly rather than paying a transit provider to carry traffic between them, so turning up at one is a deliberate choice about how this network wants to be reached. Each name opens that exchange's own page, with its peering LANs and every other network recorded on it.

No exchange membership on file. That is not the same as peering nowhere: the dataset records what PCH has collected, and many exchanges publish no participant list at all.

Unlike the tables above, this is recorded rather than inferred. An address on a peering LAN is at that exchange by definition. Two carve-outs all the same. Member ports counts every participant at the exchange, not this network's ports, so read it as a size proxy. And an absent exchange means PCH has no record of it, not that the network is not there.

Provenance

Where this comes from

Derived from routing tables collected at 2026-08-09 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 74.03M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.

Cross-check against RIPEstat or BGP.tools, which observe from a different and larger set of vantage points.

Exchange presence comes from a separate dataset: the directory collected 2026-08-09 by Packet Clearing House (https://www.pch.net/ixp/data), covering 1,327 exchanges and 93,164 recorded member ports, licensed CC BY-NC-SA 3.0.

PeeringDB is the better-known directory and is deliberately not the source here: its acceptable-use policy forbids the bulk storage this needs. The two answer different questions anyway. PeeringDB reports what an operator declares about itself; this reports what PCH has recorded.