AS42004 ULGRP-AS VOIP-UN LIMITED

ULGRP-AS VOIP-UN LIMITED · registered in the United Kingdom

IPv4 addresses11,7767 prefixes · <0.001% of announced IPv4

Rank in United Kingdom#264largest network in GB by IPv4 space, of 2,074 · 0.02% of GB

Rank worldwide#8,365of 79,396 networks with IPv4

IPv61 x /32 (65,536 x /48)1 prefixes

CountryUnited Kingdom2,261 ASNs registered there

Open AS42004 in ASN lookup Look up an IP in this network (31.10.32.1) All networks in United Kingdom

IPv4 prefixes

All 7 prefixes, in address order.

31.10.32.0/20
85.91.32.0/22
91.151.0.0/20
185.91.128.0/22
194.105.154.0/23
194.143.154.0/23
195.8.192.0/23

IPv6 prefixes

All 1 prefix.

2a00:19d8::/32

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IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources