subnet.im

AS3737PenTeleData Inc.

United StatesRegistryARINTypeEyeball

As of 23rd October 2026, AS3737 (PenTeleData Inc.), an access network registered in the United States with ARIN, originates 1,229 IPv4 prefixes covering 1.2M addresses and 160 IPv6 prefixes. By IPv4 address space that makes it the 401st-largest of the 79,659 networks we see originating IPv4, and the 96th-largest of 18,482 in the United States. It is seen behind 11 upstream networks, most often AS6461 (Zayo Bandwidth) and AS3356 (Lumen (Level 3)), and in front of 37 downstream networks. Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 2% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

1,229

IPv6 prefixes

160

IPv4 addresses

1.2M

IPv6 /64s

4.6B

Upstream graph

The networks AS3737 is seen behind, one and two hops out, drawn from real AS paths.

AS3737Toward the internet core
Upstream graph for AS3737: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS3737PenTeleData Inc.This networkAS3257GTT Communication…AS3356Lumen (Level 3)AS6461Zayo BandwidthAS6939Hurricane Electri…AS49544i3D.net B.VAS6667Elisa OyjAS398465Rackdog LLCAS3549Lumen (fka. Globa…AS32590Valve CorporationAS2914NTT America, Inc.AS18106Viewqwest Pte LtdAS20130Depaul University

Networks observed one and two hops upstream of AS3737 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

256

adjacent networks

Upstreams
114%
Peers
20881%
Downstreams
3714%

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

Upstreams of AS3737
NetworkCountryRelationshipPathsVantage pts
AS6461Zayo BandwidthUSPeer3,47176
AS3356Lumen (Level 3)USPeer2,14693
AS3257GTT Communications Inc.USPeer1,59749
AS49544i3D.net B.VNLPeer1,5342
AS6939Hurricane Electric LLCUSPeer34913
AS24482SG.GSSGPeer282
AS7195EdgeUnoCOPeer272
AS13786Seaborn (Seabras USA, LLC)USPeer251
AS35280F5 Networks SARLFRPeer251
AS293ESnetUSPeer251

Prefixes

All 1,389

The largest blocks AS3737 originates, widest first.

Largest prefixes originated by AS3737
PrefixAddressesVisibility
24.115.0.0/1665.5k77/77
24.229.0.0/1665.5k77/77
64.67.0.0/1665.5k77/77
70.15.0.0/1665.5k77/77
70.44.0.0/1665.5k77/77
75.97.0.0/1665.5k77/77
204.186.0.0/1665.5k77/77
24.102.128.0/1732.8k77/77
50.29.128.0/1732.8k77/77
146.12.0.0/1732.8k77/77

Routing health

How AS3737'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

  • Valid100.0%1,389
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more2.0%28
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%98.0%1,361

Prefix sizes

IPv4 — 1,229 prefixes

IPv6 — 160 prefixes

  • /324.3B × /640.6%1
  • /424.2M × /6448.1%77
  • /441M × /6411.3%18
  • /46262k × /641.3%2
  • /4865.5k × /6438.8%62

Recent changes

Announcements that started or stopped since 23rd Sept 2026.

21 announced and 8 withdrawn in all; the most recent are shown.

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