subnet.im

AS2381WiscNet

United StatesRegistryARINTypeEyeball

As of 10th November 2026, AS2381 (WiscNet), an access network registered in the United States with ARIN, originates 36 IPv4 prefixes covering 451k addresses and 2 IPv6 prefixes. By IPv4 address space that makes it the 770th-largest of the 80,733 networks we see originating IPv4, and the 190th-largest of 18,751 in the United States. It is seen behind 14 upstream networks, most often AS6939 (Hurricane Electric LLC) and AS1299 (Arelion (fka. Telia Carrier)), and in front of 35 downstream networks. 16% 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

36

IPv6 prefixes

2

IPv4 addresses

451k

IPv6 /64s

4.3B

Upstream graph

The networks AS2381 is seen behind, one and two hops out, drawn from real AS paths.

AS2381Toward the internet core
Upstream graph for AS2381: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS2381WiscNetThis networkAS1299Arelion (fka. Tel…AS3257GTT Communication…AS6939Hurricane Electri…AS11164Internet2 I2PXAS24482SG.GSAS13030Init7 (Switzerlan…AS16552Tiggee LLCAS6667Elisa OyjAS398465Rackdog LLCAS20130Depaul UniversityAS132337AxclusiveAS38623Metfone (Viettel …

Networks observed one and two hops upstream of AS2381 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

270

adjacent networks

Upstreams
145%
Peers
22182%
Downstreams
3513%

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

Upstreams of AS2381
NetworkCountryRelationshipPathsVantage pts
AS6939Hurricane Electric LLCUSPeer14,418111
AS1299Arelion (fka. Telia Carrier)SEPeer1,46159
AS3257GTT Communications Inc.USPeer73263
AS24482SG.GSSGPeer4854
AS11164Internet2 I2PXUSPeer2899
AS137409GSL Networks Pty LTDAUPeer2402
AS49544i3D.net B.VNLPeer2022
AS293ESnetUSPeer1821
AS11537Internet2USPeer1811
AS4775Globe TelecomsPHAdjacent1651

Prefixes

All 38

The largest blocks AS2381 originates, widest first.

Largest prefixes originated by AS2381
PrefixAddressesVisibility
140.189.0.0/1665.5k76/76
165.128.0.0/1665.5k76/76
170.125.0.0/1665.5k76/76
198.150.0.0/1665.5k76/76
205.213.0.0/1665.5k76/76
216.56.0.0/1665.5k76/76
144.89.0.0/1816.4k76/76
199.197.64.0/1816.4k76/76
143.109.64.0/198.2k76/76
143.109.192.0/198.2k76/76

Routing health

How AS2381'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

  • Valid15.8%6
  • Invalid0.0%0
  • No ROA84.2%32

Propagation

  • Globally propagated90% of full-feed peers or more100.0%38
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 36 prefixes

IPv6 — 2 prefixes

  • /324.3B × /6450.0%1
  • /4016.8M × /6450.0%1

Recent changes

Announcements that started or stopped since 12th Oct 2026.

  • Withdrawn140.104.0.0/1617th Oct 2026

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