subnet.im

AS8001Cologix, Inc

United StatesRegistryARIN

As of 10th November 2026, AS8001 (Cologix, Inc), a network registered in the United States with ARIN, originates 55 IPv4 prefixes covering 442k addresses and 6 IPv6 prefixes. By IPv4 address space that makes it the 781st-largest of the 80,723 networks we see originating IPv4, and the 196th-largest of 18,750 in the United States. It is seen behind 19 upstream networks, most often AS6461 (Zayo Bandwidth) and AS3356 (Lumen (Level 3)), and in front of 23 downstream networks. None of its announcements have a valid RPKI ROA; 1 is RPKI-invalid. 95% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

55

IPv6 prefixes

6

IPv4 addresses

442k

IPv6 /64s

4.8B

Upstream graph

The networks AS8001 is seen behind, one and two hops out, drawn from real AS paths.

AS8001Toward the internet core
Upstream graph for AS8001: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS8001Cologix, IncThis networkAS174Cogent Communicat…AS1299Arelion (fka. Tel…AS3356Lumen (Level 3)AS6461Zayo BandwidthAS9002RETN LimitedAS151326DCConnect Communi…AS13030Init7 (Switzerlan…AS16552Tiggee LLCAS3549Lumen (fka. Globa…AS2914NTT America, Inc.AS32590Valve CorporationAS6667Elisa Oyj

Networks observed one and two hops upstream of AS8001 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

119

adjacent networks

Upstreams
1916%
Peers
7765%
Downstreams
2319%

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

Upstreams of AS8001
NetworkCountryRelationshipPathsVantage pts
AS6461Zayo BandwidthUSPeer2,387110
AS3356Lumen (Level 3)USPeer2,05768
AS174Cogent Communications, LLCUSPeer88170
AS1299Arelion (fka. Telia Carrier)SEPeer87330
AS9002RETN LimitedGBPeer1667
AS2497Internet Initiative Japan Inc.JPPeer1563
AS13030Init7 (Switzerland) Ltd.CHPeer1184
AS14537Continent 8 LLCUSPeer1104
AS6667Elisa OyjFIPeer1102
AS24482SG.GSSGPeer572

Prefixes

All 61

The largest blocks AS8001 originates, widest first.

Largest prefixes originated by AS8001
PrefixAddressesVisibility
66.246.0.0/1665.5k76/76
67.196.0.0/1665.5k76/76
70.47.0.0/1665.5k76/76
209.123.0.0/1665.5k76/76
64.21.0.0/1732.8k76/76
66.29.0.0/1732.8k76/76
207.99.0.0/1732.8k76/76
64.247.0.0/1816.4k76/76
207.192.64.0/1816.4k76/76
216.118.64.0/1816.4k76/76

Routing health

How AS8001'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

  • Valid0.0%0
  • Invalid1.6%1
  • No ROA98.4%60

Propagation

  • Globally propagated90% of full-feed peers or more95.1%58
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%4.9%3

Prefix sizes

IPv4 — 55 prefixes

IPv6 — 6 prefixes

  • /324.3B × /6416.7%1
  • /36268M × /6433.3%2
  • /4865.5k × /6450.0%3

Recent changes

Announcements that started or stopped since 11th Oct 2026.

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