$ query “AS42004” --type=asn → 1 result(s)

AS42004 · ULGRP-AS

VOIP-UN LIMITED

AS42004 is operated by VOIP-UN LIMITED and serves as a content network, established in the United Kingdom in 2006. The system announces a respectable 11 776 IPv4 addresses, and supports IPv6. Most of its address space is geolocated to the United Kingdom.

Basic Information

Country
🇬🇧 United Kingdom
Category
Hosting
Network Role
Content Network
Data Origin
Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
Registered
December 01, 2006
Last Changed
March 04, 2026
Last Seen
April 30, 2026 (active)

Prefix Summary

IPv4 Prefixes (raw / aggregated)
8 / 7
IPv6 Prefixes (raw / aggregated)
1 / 1
IPv4 Addresses
11 776
Largest IPv4 Prefix
/20 (4 096 addresses)
Largest IPv6 Prefix
/32
Geolocated Countries
🇬🇧 United Kingdom (22 528 IPs)
Prefix Changed
March 04, 2026

Reputation

Reputation
Pristine — 0 flagged IPs

Connectivity Summary

Upstream Providers
5 upstreams providing transit
Peers
79 networks exchanging traffic without transit
Unclassified
2 unclassified BGP neighbors
Degree
86 unique BGP neighbors
Reach
0 networks in customer cone

Upstream Providers (5)

  • AS174 — COGENT-174 (Tier-1 transit)
  • AS1299 — TWELVE99 (Tier-1 transit)
  • AS3257 — GTT-BACKBONE (Tier-1 transit)
  • AS2914 — NTT-DATA-2914 (Tier-1 transit)
  • AS286 — KPN

Prefix Lists

IPv4 Prefixes (8 total)

  • 31.10.32.0/20 (4 096 addresses (/20 prefix))
  • 91.151.0.0/20 (4 096 addresses (/20 prefix))
  • 85.91.32.0/22 (1 024 addresses (/22 prefix))
  • 185.91.128.0/22 (1 024 addresses (/22 prefix))
  • 194.105.154.0/23 (512 addresses (/23 prefix))
  • 194.143.154.0/23 (512 addresses (/23 prefix))
  • 195.8.192.0/23 (512 addresses (/23 prefix))

IPv6 Prefixes (1 total)

  • 2a00:19d8::/32