subnet.im

AS19331Twin Lakes Telephone Cooperative Corporation

United StatesRegistryARIN

As of 22nd October 2026, AS19331 (Twin Lakes Telephone Cooperative…), a network registered in the United States with ARIN, originates 39 IPv4 prefixes covering 169k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 1,518th-largest of the 79,655 networks we see originating IPv4, and the 434th-largest of 18,475 in the United States. It is seen behind 7 upstream networks, most often AS2914 (NTT America, Inc.) and AS11758 (IRIS Networks), and in front of 8 downstream networks. 98% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. 68% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

39

IPv6 prefixes

1

IPv4 addresses

169k

IPv6 /64s

68.7B

Upstream graph

The networks AS19331 is seen behind, one and two hops out, drawn from real AS paths.

AS19331Toward the internet core
Upstream graph for AS19331: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS19331Twin Lakes Teleph…This networkAS174Cogent Communicat…AS2914NTT America, Inc.AS6939Hurricane Electri…AS11758IRIS NetworksAS11979Bluegrass Network…AS1299Arelion (fka. Tel…AS151326DCConnect Communi…AS49544i3D.net B.VAS215859Hetzner Cloud - S…AS20130Depaul UniversityAS6461Zayo BandwidthAS3356Lumen (Level 3)

Networks observed one and two hops upstream of AS19331 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

39

adjacent networks

Upstreams
718%
Peers
2462%
Downstreams
821%

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

Upstreams of AS19331
NetworkCountryRelationshipPathsVantage pts
AS2914NTT America, Inc.USPeer1,77493
AS11758IRIS NetworksUSPeer1,159125
AS174Cogent Communications, LLCUSPeer48158
AS11979Bluegrass Network LLCUSPeer19276
AS6939Hurricane Electric LLCUSPeer18612
AS49544i3D.net B.VNLPeer532
AS137409GSL Networks Pty LTDAUPeer443

Prefixes

All 40

The largest blocks AS19331 originates, widest first.

Largest prefixes originated by AS19331
PrefixAddressesVisibility
149.149.0.0/1732.8k77/77
149.149.128.0/1732.8k77/77
91.85.160.0/198.2k77/77
135.129.192.0/198.2k77/77
148.170.96.0/198.2k77/77
149.106.32.0/198.2k77/77
150.252.160.0/198.2k77/77
169.150.160.0/198.2k77/77
63.135.176.0/204.1k77/77
67.212.240.0/204.1k77/77

Routing health

How AS19331'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

  • Valid97.5%39
  • Invalid0.0%0
  • No ROA2.5%1

Propagation

  • Globally propagated90% of full-feed peers or more67.5%27
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%32.5%13

Prefix sizes

IPv4 — 39 prefixes

IPv6 — 1 prefixes

  • /2868.7B × /64100.0%1

Recent changes

Announcements that started or stopped since 22nd Sept 2026.

No announcement by AS19331 started or stopped in this period.

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