AS58273 Broadband for the Rural North (B4RN)
AS58273 is operated by Broadband for the Rural North (B4RN) and registered with RIPE NCC (GB) since 2012-06-12.
It announces 48 IPv4 and 21 IPv6 prefixes, 100% of them RPKI valid.
RIPE RIS sees 50 upstream and peer networks and 1 downstream networks next to it.
PeeringDB lists it as a Non-Profit network at 5 internet exchanges and 5 facilities. Its peering policy is open.
| Name | Broadband for the Rural North (B4RN) |
|---|---|
| Registry (RIR) | RIPE NCC |
| Country | United Kingdom (GB) |
| Delegated on | 2012-06-12 |
| Network type | Non-Profit, Regional |
| Peering policy | Open |
| IRR as-set | AS-B4RN |
| Prefixes (IPv4 / IPv6) | 48 / 21 |
| RPKI valid | 100% (69 / 69) |
| Upstreams and peers | 50 |
| Downstream networks | 1 |
| Website | b4rn.org.uk |
Routing health
- AS58273 announces 48 IPv4 and 21 IPv6 prefixes.
- All 69 announced prefixes are RPKI valid.
- 50 upstreams and peers, 1 downstream networks seen.
For every check with the fix (IRR route objects, the RPKI state of each route, reverse DNS and the registration), run the full network report.
Announced prefixes 69
- 5.83.8.0/23
- 5.83.8.0/24
- 5.83.9.0/24
- 5.83.10.0/23
- 5.83.12.0/22
- 88.97.112.0/22
- 88.97.116.0/22
- 88.97.120.0/21
- 88.97.120.0/22
- 88.97.124.0/22
- 88.97.128.0/21
- 88.97.128.0/22
- 88.97.132.0/22
- 88.97.136.0/21
- 88.97.136.0/22
- 88.97.140.0/22
- 88.97.144.0/22
- 88.97.148.0/22
- 88.97.152.0/22
- 88.97.156.0/24
- 148.252.16.0/23
- 148.252.16.0/24
- 148.252.17.0/24
- 148.252.18.0/23
- 148.252.20.0/23
- 148.252.22.0/23
- 148.252.24.0/22
- 148.252.28.0/22
- 185.89.32.0/22
- 185.159.91.0/24
- 185.201.32.0/24
- 185.201.33.0/24
- 185.201.34.0/23
- 185.217.156.0/24
- 185.217.157.0/24
- 185.243.104.0/22
- 185.243.104.0/24
- 185.243.105.0/24
- 185.243.106.0/24
- 185.243.107.0/24
- 194.31.184.0/23
- 194.31.184.0/24
- 194.31.185.0/24
- 194.31.187.0/24
- 194.113.44.0/23
- 194.113.44.0/24
- 194.113.45.0/24
- 194.113.46.0/23
- 2a01:6240:19::/48
- 2a01:6240:22::/48
- 2a01:6240:23::/48
- 2a01:6240:24::/48
- 2a01:6240:26::/48
- 2a01:6240:30::/48
- 2a01:6240:80::/48
- 2a01:6240::/48
- 2a01:6241:8000::/34
- 2a01:6242:8000::/34
- 2a01:6242::/34
- 2a01:6243::/34
- 2a01:6244:8000::/34
- 2a01:6244::/34
- 2a01:6245::/34
- 2a01:6246::/34
- 2a01:6247:8000::/34
- 2a01:6247::/34
- 2a10:cb80::/29
- 2a10:cb80::/48
- 2a10:cb81::/34
Upstreams and peers 50
The networks RIPE RIS sees next to AS58273 in BGP paths, the most visible first.
Peering
Peering policy: Open. Suggested max-prefix limits: 60 IPv4, 40 IPv6. PeeringDB record
| Exchange | Ports | Speed | Route server |
|---|---|---|---|
| IXLeeds | 1 | 10G | Yes |
| LINX LON1: Main | 1 | 100G | Yes |
| LINX Manchester | 1 | 100G | Yes |
| LINX Scotland: LINX Scotland | 1 | 10G | Yes |
| NCL-IX | 1 | 10G | Yes |
| Facility | City | Country |
|---|---|---|
| aql DC5 | Leeds | GB |
| Equinix MA1 - Manchester, Williams/Kilburn | Manchester | GB |
| Pulsant Edinburgh SC-1 (South Gyle) | Edinburgh | GB |
| Stellium 1 | Newcastle | GB |
| Telehouse - London (Docklands North) | London | GB |
More about AS58273
Sources: RIR delegation data and PeeringDB (updated daily); routing from RIPEstat (RIPE NCC RIS and RPKI), refreshed daily. Routing data from 2026-11-12 18:23 UTC. The country is where the AS number was registered, not necessarily where the network operates.