$ query “AS31500” --type=asn → 1 result(s)

AS31500 · GNM-AS

Global Network Management Inc

AS31500 is owned by Global Network Management Inc and is a major transit provider, based in Antigua & Barbuda since 2004. The system announces a respectable 18 944 IPv4 addresses, and supports IPv6. Most of its address space is geolocated to Russia, with additional presence in the Netherlands and Antigua & Barbuda, and smaller footprints in 3 additional countries.

  • Top 5% — Top 5% of all autonomous systems by reach and degree
  • #100 by Reach — Top 100 by customer cone size
  • #1 in Antigua & Barbuda — Top 10 by reach within country

Basic Information

Country
🇦🇬 Antigua & Barbuda
Category
Hosting
Network Role
Major Transit
Data Origin
Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
Registered
May 28, 2004
Last Changed
March 04, 2026
Last Seen
April 14, 2026 (active)

Prefix Summary

IPv4 Prefixes (raw / aggregated)
38 / 14
IPv6 Prefixes (raw / aggregated)
7 / 2
IPv4 Addresses
18 944
Largest IPv4 Prefix
/20 (4 096 addresses)
Largest IPv6 Prefix
/32
Geolocated Countries
🇷🇺 Russia (15 616 IPs), 🇳🇱 Netherlands (15 360 IPs), 🇦🇬 Antigua & Barbuda (512 IPs) and 3 more
Prefix Changed
March 13, 2026

Reputation

Reputation
Good — 1 flagged IPs out of 18 944 total (0.01%)

Connectivity Summary

Upstream Providers
10 upstreams providing transit
Peers
262 networks exchanging traffic without transit
Downstream Customers
172 downstreams buying transit
Unclassified
497 unclassified BGP neighbors
Degree
941 unique BGP neighbors
Reach
37 093 networks in customer cone

Upstream Providers (10)

Prefix Lists

IPv4 Prefixes (38 total)

  • 81.27.240.0/20 (4 096 addresses (/20 prefix))
  • 95.140.80.0/20 (4 096 addresses (/20 prefix))
  • 95.161.240.0/20 (4 096 addresses (/20 prefix))
  • 109.239.128.0/21 (2 048 addresses (/21 prefix))
  • 109.239.140.0/22 (1 024 addresses (/22 prefix))
  • 94.124.180.0/22 (1 024 addresses (/22 prefix))
  • 178.18.228.0/23 (512 addresses (/23 prefix))
  • 109.239.138.0/23 (512 addresses (/23 prefix))
  • 91.108.50.0/24 (256 addresses (/24 prefix))
  • 95.161.128.0/24 (256 addresses (/24 prefix))
  • 91.108.40.0/24 (256 addresses (/24 prefix))
  • 83.243.69.0/24 (256 addresses (/24 prefix))
  • 178.18.232.0/24 (256 addresses (/24 prefix))
  • 185.26.75.0/24 (256 addresses (/24 prefix))

IPv6 Prefixes (7 total)

  • 2001:b28::/32
  • 2a03:5f80::/46