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AS395383Cologuard

United StatesRegistryARIN

As of 12th November 2026, AS395383 (Cologuard), a network registered in the United States with ARIN, originates 25 IPv4 prefixes covering 43.5k addresses and 2 IPv6 prefixes. By IPv4 address space that makes it the 4,781st-largest of the 80,772 networks we see originating IPv4, and the 1,684th-largest of 18,759 in the United States. It is seen behind 12 upstream networks, most often AS6939 (Hurricane Electric LLC) and AS1299 (Arelion (fka. Telia Carrier)), and in front of 8 downstream networks. 89% of its announcements have a valid RPKI ROA; 2 are RPKI-invalid. 93% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

25

IPv6 prefixes

2

IPv4 addresses

43.5k

IPv6 /64s

4.3B

Upstream graph

The networks AS395383 is seen behind, one and two hops out, drawn from real AS paths.

AS395383Toward the internet core
Upstream graph for AS395383: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS395383CologuardThis networkAS1299Arelion (fka. Tel…AS6939Hurricane Electri…AS30666Xchange Telecom C…AS46450Pilot Fiber, Inc.AS46887Zayo (fka. Crown …AS13030Init7 (Switzerlan…AS16552Tiggee LLCAS20130Depaul UniversityAS132337AxclusiveAS2914NTT America, Inc.AS6461Zayo BandwidthAS3356Lumen (Level 3)

Networks observed one and two hops upstream of AS395383 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

63

adjacent networks

Upstreams
1219%
Peers
4368%
Downstreams
813%

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

Upstreams of AS395383
NetworkCountryRelationshipPathsVantage pts
AS6939Hurricane Electric LLCUSPeer1,795105
AS1299Arelion (fka. Telia Carrier)SEPeer54140
AS46887Zayo (fka. Crown Castle)USPeer23129
AS30666Xchange Telecom Corp.USPeer17878
AS46450Pilot Fiber, Inc.USPeer8484
AS27257Webair Internet Development Company Inc.USPeer4221
AS999CORIX NETWORKSUSAdjacent112
AS24482SG.GSSGPeer112
AS25091IP-Max SACHPeer112
AS49544i3D.net B.VNLPeer102

Prefixes

All 27

The largest blocks AS395383 originates, widest first.

Largest prefixes originated by AS395383
PrefixAddressesVisibility
209.104.192.0/198.2k78/78
64.118.80.0/204.1k78/78
66.109.16.0/204.1k78/78
70.34.96.0/204.1k78/78
206.71.48.0/204.1k78/78
208.96.160.0/204.1k78/78
209.151.160.0/204.1k78/78
70.34.104.0/212k78/78
70.34.100.0/221k78/78
192.157.84.0/221k78/78

Routing health

How AS395383'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

  • Valid88.9%24
  • Invalid7.4%2
  • No ROA3.7%1

Propagation

  • Globally propagated90% of full-feed peers or more92.6%25
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%7.4%2

Prefix sizes

IPv4 — 25 prefixes

IPv6 — 2 prefixes

  • /324.3B × /6450.0%1
  • /4865.5k × /6450.0%1

Recent changes

Announcements that started or stopped since 13th Oct 2026.

No announcement by AS395383 started or stopped in this period.

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