AS58273 B4RN-AS Broadband for the Rural North Limited.

B4RN-AS Broadband for the Rural North Limited. · registered in the United Kingdom

IPv4 addresses23,29615 prefixes · <0.001% of announced IPv4

Rank in United Kingdom#161largest network in GB by IPv4 space, of 2,074 · 0.03% of GB

Rank worldwide#5,655of 79,396 networks with IPv4

IPv610 x /32 (688,136 x /48)23 prefixes

CountryUnited Kingdom2,261 ASNs registered there

Open AS58273 in ASN lookup Look up an IP in this network (5.83.8.1) All networks in United Kingdom

IPv4 prefixes

All 15 prefixes, in address order.

5.83.8.0/21
88.97.112.0/20
88.97.128.0/20
88.97.144.0/21
88.97.152.0/22
88.97.156.0/24
148.252.16.0/20
185.89.32.0/22
185.159.91.0/24
185.201.32.0/22
185.217.156.0/23
185.243.104.0/22
194.31.184.0/23
194.31.187.0/24
194.113.44.0/22

IPv6 prefixes

All 23 prefixes.

2a01:6240::/48
2a01:6240:19::/48
2a01:6240:22::/47
2a01:6240:24::/48
2a01:6240:26::/48
2a01:6240:30::/48
2a01:6240:80::/48
2a01:6241:8000::/34
2a01:6242::/34
2a01:6242:8000::/34
2a01:6243::/34
2a01:6244::/34
2a01:6244:8000::/34
2a01:6245::/34
2a01:6246::/34
2a01:6247::/34
2a01:6247:8000::/34
2a10:cb80::/32
2a10:cb81::/34
2a10:cb81:4000::/34
2a10:cb81:8000::/33
2a10:cb82::/31
2a10:cb84::/30

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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