AS213671 FOURTHUTILITY-AS Vision Fibre Media Ltd.

FOURTHUTILITY-AS Vision Fibre Media Ltd. · registered in the United Kingdom

IPv4 addresses9,21615 prefixes · <0.001% of announced IPv4

Rank in United Kingdom#310largest network in GB by IPv4 space, of 2,074 · 0.01% of GB

Rank worldwide#9,556of 79,396 networks with IPv4

IPv612,288 x /482 prefixes

CountryUnited Kingdom2,261 ASNs registered there

Open AS213671 in ASN lookup Look up an IP in this network (38.44.104.1) All networks in United Kingdom

IPv4 prefixes

All 15 prefixes, in address order.

38.44.104.0/22
38.49.104.0/24
81.2.136.0/22
81.2.140.0/23
82.129.8.0/24
95.142.148.0/24
149.5.59.0/24
149.13.184.0/24
149.119.0.0/22
150.237.32.0/21
154.47.7.0/24
154.51.80.0/23
154.51.84.0/22
192.48.111.0/24
213.146.161.0/24

IPv6 prefixes

All 2 prefixes.

2a05:b100:1000::/36
2a05:b100:2000::/35

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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