AS51263 COUNTYBB County Broadband Ltd

COUNTYBB County Broadband Ltd · registered in the United Kingdom

IPv4 addresses20,4807 prefixes · <0.001% of announced IPv4

Rank in United Kingdom#177largest network in GB by IPv4 space, of 2,074 · 0.03% of GB

Rank worldwide#6,036of 79,396 networks with IPv4

IPv68 x /32 (524,288 x /48)1 prefixes

CountryUnited Kingdom2,261 ASNs registered there

Open AS51263 in ASN lookup Look up an IP in this network (62.56.176.1) All networks in United Kingdom

IPv4 prefixes

All 7 prefixes, in address order.

62.56.176.0/20
136.148.152.0/21
168.86.192.0/19
178.251.176.0/21
185.25.56.0/22
185.164.180.0/22
213.244.200.0/21

IPv6 prefixes

All 1 prefix.

2a0b:4c00::/29

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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