$ query “AS2381” --type=asn → 1 result(s)

AS2381 — WISCNET1-AS

WiscNet

AS2381 is a mid-size transit provider run by WiscNet, based in the United States since 1993. The network announces a solid 515 328 IPv4 addresses, including a /16. Supports IPv6.

  • Top 5% — Top 5% of all autonomous systems by reach and degree
  • Pioneer — Registered before the year 2000

Basic Information

Country
🇺🇸 United States
Category
Hosting
Network Role
Mid-size Transit
Data Origin
Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
Registered
February 03, 1993
Last Changed
March 04, 2026
Last Seen
March 04, 2026

Prefix Summary

IPv4 Prefixes (raw / aggregated)
37 / 30
IPv6 Prefixes (raw / aggregated)
2 / 2
IPv4 Addresses
515 328
Largest IPv4 Prefix
/16 (65 536 addresses)
Largest IPv6 Prefix
/32
Geolocated Countries
🇺🇸 US (35 IPs)
Prefix Changed
March 04, 2026

Reputation

Reputation
Pristine — 0 flagged IPs out of 515 328 total (0.00%)

Connectivity Summary

Upstream Providers
5 upstream autonomous systems providing transit
Peers
181 autonomous systems exchanging traffic without transit fees
Downstream Customers
34 downstream autonomous systems buying transit
Degree
220 unique BGP neighbors (providers + customers + peers)
Reach
229 — customer cone size measuring network influence
Degree Rank
#591
Reach Rank
#804

Upstream Providers (5)

  • AS6939 — HURRICANE
  • AS1299 — TWELVE99 (Tier-1 transit)
  • AS3257 — GTT-BACKBONE (Tier-1 transit)
  • AS11164 — INTERNET2-I2PX (Tier-1 transit)
  • AS11537 — INTERNET2-RESEARCH-EDU

Prefix Lists

IPv4 Prefixes (37 total)

  • 140.104.0.0/16 (65 536 addresses)
  • 140.189.0.0/16 (65 536 addresses)
  • 165.128.0.0/16 (65 536 addresses)
  • 170.125.0.0/16 (65 536 addresses)
  • 198.150.0.0/16 (65 536 addresses)
  • 205.213.0.0/16 (65 536 addresses)
  • 216.56.0.0/16 (65 536 addresses)
  • 144.89.0.0/18 (16 384 addresses)
  • 199.197.64.0/18 (16 384 addresses)
  • 143.109.64.0/19 (8 192 addresses)
  • 143.109.192.0/19 (8 192 addresses)
  • 160.32.0.0/22 (1 024 addresses)
  • 208.85.28.0/22 (1 024 addresses)
  • 199.233.44.0/23 (512 addresses)
  • 204.128.234.0/23 (512 addresses)
  • 204.128.236.0/23 (512 addresses)
  • 204.128.240.0/23 (512 addresses)
  • 64.189.15.0/24 (256 addresses)
  • 148.59.44.0/24 (256 addresses)
  • 192.156.230.0/24 (256 addresses)
  • 192.206.48.0/24 (256 addresses)
  • 199.233.84.0/24 (256 addresses)
  • 199.233.86.0/24 (256 addresses)
  • 199.233.142.0/24 (256 addresses)
  • 199.242.176.0/24 (256 addresses)
  • 199.248.186.0/24 (256 addresses)
  • 204.128.233.0/24 (256 addresses)
  • 204.128.238.0/24 (256 addresses)
  • 204.128.242.0/24 (256 addresses)
  • 204.145.232.0/24 (256 addresses)

IPv6 Prefixes (2 total)

  • 2001:4e0::/32
  • 2620:11f:f000::/40