AS204731 fibrenest FIBRENEST LIMITED

fibrenest FIBRENEST LIMITED · registered in the United Kingdom

IPv4 addresses7,1684 prefixes · <0.001% of announced IPv4

Rank in United Kingdom#362largest network in GB by IPv4 space, of 2,074 · 0.01% of GB

Rank worldwide#11,444of 79,396 networks with IPv4

IPv61 x /32 (65,536 x /48)12 prefixes

CountryUnited Kingdom2,261 ASNs registered there

Open AS204731 in ASN lookup Look up an IP in this network (38.126.80.1) All networks in United Kingdom

IPv4 prefixes

All 4 prefixes, in address order.

38.126.80.0/20
154.62.164.0/22
154.62.168.0/22
185.241.224.0/22

IPv6 prefixes

All 12 prefixes.

2a0c:b381::/38
2a0c:b381:400::/39
2a0c:b381:600::/39
2a0c:b381:800::/38
2a0c:b381:c00::/38
2a0c:b381:1000::/37
2a0c:b381:1800::/39
2a0c:b381:1a00::/39
2a0c:b381:1c00::/38
2a0c:b381:2000::/35
2a0c:b381:4000::/34
2a0c:b381:8000::/33

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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