subnet.im

AS26073Cofractal, Inc.

United StatesRegistryARIN

As of 27th September 2026, AS26073 (Cofractal, Inc.), a network registered in the United States with ARIN, originates 19 IPv4 prefixes covering 7.9k addresses and 21 IPv6 prefixes. By IPv4 address space that makes it the 12,564th-largest of the 79,525 networks we see originating IPv4, and the 3,685th-largest of 18,428 in the United States. It is seen behind 5 upstream networks, most often AS1299 (Arelion (fka. Telia Carrier)) and AS6939 (Hurricane Electric LLC), and in front of 15 downstream networks. 45% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. 100% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

19

IPv6 prefixes

21

IPv4 addresses

7.9k

IPv6 /64s

73B

Upstream graph

The networks AS26073 is seen behind, one and two hops out, drawn from real AS paths.

AS26073Toward the internet core
Upstream graph for AS26073: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS26073Cofractal, Inc.This networkAS174Cogent Communicat…AS1299Arelion (fka. Tel…AS6939Hurricane Electri…AS49544i3D.net B.VAS60011Mythic Beasts LtdAS151326DCConnect Communi…AS8888xTom Pty LtdAS13030Init7 (Switzerlan…AS18106Viewqwest Pte LtdAS20130Depaul UniversityAS2914NTT America, Inc.AS3356Lumen (Level 3)

Networks observed one and two hops upstream of AS26073 in real AS paths. A thicker line means more vantage points saw that adjacency, so weight tracks how well attested it is — not how much traffic it carries. Adjacency is an observation; whether it is a transit purchase or a settlement-free peering is an inference, and is labelled as one wherever we show it.

Neighbouring networks

53

adjacent networks

Upstreams
59%
Peers
3362%
Downstreams
1528%

Networks carrying this one's traffic toward the rest of the internet.

Upstreams of AS26073
NetworkCountryRelationshipPathsVantage pts
AS1299Arelion (fka. Telia Carrier)SEPeer2,078136
AS6939Hurricane Electric LLCUSPeer1,492106
AS174Cogent Communications, LLCUSPeer1,389104
AS49544i3D.net B.VNLPeer322
AS60011Mythic Beasts LtdGBPeer41

Prefixes

All 40

The largest blocks AS26073 originates, widest first.

Largest prefixes originated by AS26073
PrefixAddressesVisibility
23.165.224.0/221k81/81
158.51.16.0/221k81/81
208.80.44.0/221k81/81
23.165.224.0/2351281/81
23.165.226.0/2351281/81
208.80.44.0/2351280/81
23.139.160.0/2425681/81
23.165.224.0/2425681/81
23.165.225.0/2425681/81
23.165.227.0/2425680/81

Routing health

How AS26073's own announcements validate against RPKI and how far they propagate. The same measures for the whole routing table are on the routing table in numbers.

RPKI origin validation

  • Valid45.0%18
  • Invalid0.0%0
  • No ROA55.0%22

Propagation

  • Globally propagated90% of full-feed peers or more100.0%40
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 19 prefixes

IPv6 — 21 prefixes

  • /2868.7B × /644.8%1
  • /324.3B × /644.8%1
  • /441M × /6428.6%6
  • /4865.5k × /6461.9%13

Recent changes

Announcements that started or stopped since 28th Aug 2026.

No announcement by AS26073 started or stopped in this period.

Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.