subnet.im

AS39944Telecom North America Inc.

United StatesRegistryARIN

As of 27th September 2026, AS39944 (Telecom North America Inc.), a network registered in the United States with ARIN, originates 45 IPv4 prefixes covering 13.8k addresses and 4 IPv6 prefixes. By IPv4 address space that makes it the 8,840th-largest of the 79,540 networks we see originating IPv4, and the 2,778th-largest of 18,430 in the United States. It is seen behind 6 upstream networks, most often AS174 (Cogent Communications, LLC) and AS8220 (COLT), and in front of 1 downstream network. 37% 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

45

IPv6 prefixes

4

IPv4 addresses

13.8k

IPv6 /64s

38.7B

Upstream graph

The networks AS39944 is seen behind, one and two hops out, drawn from real AS paths.

AS39944Toward the internet core
Upstream graph for AS39944: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS39944Telecom North Ame…This networkAS174Cogent Communicat…AS2914NTT America, Inc.AS3356Lumen (Level 3)AS7473Singapore Telecom…AS8220COLTAS1299Arelion (fka. Tel…AS151326DCConnect Communi…AS3130RGnet OUAS49544i3D.net B.VAS3549Lumen (fka. Globa…AS6461Zayo BandwidthAS15576NTS workspace AG

Networks observed one and two hops upstream of AS39944 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

16

adjacent networks

Upstreams
638%
Peers
956%
Downstreams
16%

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

Upstreams of AS39944
NetworkCountryRelationshipPathsVantage pts
AS174Cogent Communications, LLCUSPeer1,459141
AS8220COLTGBPeer1,06558
AS3356Lumen (Level 3)USPeer90856
AS2914NTT America, Inc.USPeer27674
AS7473Singapore Telecommunications LtdSGPeer25788
AS8966Etisalat (E&)AEPeer24682

Prefixes

All 49

The largest blocks AS39944 originates, widest first.

Largest prefixes originated by AS39944
PrefixAddressesVisibility
139.28.84.0/221k80/82
38.52.194.0/2351281/82
38.123.62.0/2351281/82
139.28.86.0/2351280/82
149.2.84.0/2351282/82
154.51.8.0/2351281/82
154.56.122.0/2351281/82
38.2.136.0/2425680/82
38.2.137.0/2425681/82
38.2.138.0/2425681/82

Routing health

How AS39944'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

  • Valid36.7%18
  • Invalid0.0%0
  • No ROA63.3%31

Propagation

  • Globally propagated90% of full-feed peers or more100.0%49
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 45 prefixes

IPv6 — 4 prefixes

  • /2934.4B × /6425.0%1
  • /324.3B × /6425.0%1
  • /3933.6M × /6450.0%2

Recent changes

Announcements that started or stopped since 29th Aug 2026.

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