asn.dev

Observed topology

AS26073 COFRACTAL-001

Upstreams 4 carry this network
Downstreams 12 this network carries
Adjacent (IPv4) 15
Adjacent (IPv6) 15

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS26073: 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
AS1299Arelion Sweden ABTransitIPv4 IPv6971
AS6939Hurricane Electric LLCTransitIPv4 IPv6771
AS174Cogent Communications, LLCTransitIPv4 IPv6175
AS6424EDGOO NETWORKS UNIPESSOAL LDAHostingIPv45

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 AS26073 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS215069Office of Consensus Maintenance LLCUnclassifiedIPv4 IPv6229
AS923Aconite Systems LLCUnclassifiedIPv4 IPv6186
AS205602Seamus CaveneyUnclassifiedIPv4 IPv6135
AS21903Arnhem Networks LLCUnclassifiedIPv6109
AS399135617A CorporationUnclassifiedIPv4 IPv6108
AS401461Accelerate Networks LLCUnclassifiedIPv4 IPv693
AS395388int3 Systems, LLCUnclassifiedIPv4 IPv693
AS972Cofractal, Inc.UnclassifiedIPv676
AS64241Wobscale Technologies, LLCUnclassifiedIPv443
AS394119eXperimental Computing Facility FoundationUnclassifiedIPv638
AS205479Luke Eiji Granger-BrownUnclassifiedIPv4 IPv635
AS54429Local Connectivity LabUnclassifiedIPv421

Adjacency

Adjacent networks

30 shown

Every AS seen directly next to AS26073 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS1299Arelion Sweden ABTransitIPv4 IPv61,551
AS6939Hurricane Electric LLCTransitIPv4 IPv61,031
AS174Cogent Communications, LLCTransitIPv4 IPv6647
AS215069Office of Consensus Maintenance LLCUnclassifiedIPv4 IPv6229
AS923Aconite Systems LLCUnclassifiedIPv4 IPv6186
AS205602Seamus CaveneyUnclassifiedIPv4 IPv6135
AS21903Arnhem Networks LLCUnclassifiedIPv6109
AS399135617A CorporationUnclassifiedIPv4 IPv6108
AS401461Accelerate Networks LLCUnclassifiedIPv4 IPv693
AS395388int3 Systems, LLCUnclassifiedIPv4 IPv693
AS52025ParadoxNetworks LimitedUnclassifiedIPv4 IPv688
AS972Cofractal, Inc.UnclassifiedIPv676
AS64241Wobscale Technologies, LLCUnclassifiedIPv443
AS394119eXperimental Computing Facility FoundationUnclassifiedIPv638
AS62623Cofractal, Inc.UnclassifiedIPv636
AS205479Luke Eiji Granger-BrownUnclassifiedIPv4 IPv635
AS20473The Constant Company, LLCHostingIPv422
AS54429Local Connectivity LabUnclassifiedIPv421
AS6424EDGOO NETWORKS UNIPESSOAL LDAHostingIPv45

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 AS26073, 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. Recorded at 5 exchanges across 2 countries and 2 regions.

ExchangeLocationTheir addressMember ports
Seattle Internet ExchangeSeattle, United States206.81.81.220350
Speed Internet ExchangeDronten, Netherlands185.1.222.221292
Fremont Cabal Internet ExchangeFremont, United States206.80.238.15182
San Francisco Metropolitan Internet ExchangeSan Francisco, United States206.197.187.71106
Kansas City Internet ExchangeKansas City, United States206.51.7.21972

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 2026-08-08 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 74.02M 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 2026-08-08 by Packet Clearing House (https://www.pch.net/ixp/data), covering 1,327 exchanges and 93,137 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.