Network · data from 2026-11-12
AS58273 Broadband for the Rural North (B4RN)
Registry name: B4RN-AS Broadband for the Rural North Limited., GB · PeeringDB
Announced routes
Every prefix a peer of the route collectors sees with origin AS58273, things to look at first. Visibility = full-table peers that see it, of 673 (IPv4) and 636 (IPv6) on 75 collectors. Also as routes.csv.
| 5.83.8.0/23 | Valid | Nonecovered by 5.83.8.0/21 | 672 100% |
| 88.97.156.0/24 | Valid | Nonecovered by 88.97.156.0/22 | 672 100% |
| 2a01:6246::/34 | Valid | Nonecovered by 2a01:6240::/29 | 635 100% |
| 185.243.107.0/24 | Valid | Nonecovered by 185.243.104.0/22 | 380 56% |
| 5.83.10.0/23 | Valid | RIR databaseRIPE | 672 100% |
| 5.83.12.0/22 | Valid | RIR databaseRIPE | 672 100% |
| 88.97.112.0/22 | Valid | RIR databaseRIPE | 672 100% |
| 88.97.116.0/22 | Valid | RIR databaseRIPE | 672 100% |
| 88.97.120.0/21 | Valid | RIR databaseRIPE | 672 100% |
| 88.97.128.0/21 | Valid | RIR databaseRIPE | 672 100% |
| 88.97.128.0/22 | Valid | RIR databaseRIPE | 672 100% |
| 88.97.132.0/22 | Valid | RIR databaseRIPE | 672 100% |
| 88.97.136.0/21 | Valid | RIR databaseRIPE | 672 100% |
| 88.97.144.0/22 | Valid | RIR databaseRIPE | 672 100% |
| 88.97.148.0/22 | Valid | RIR databaseRIPE | 672 100% |
| 88.97.152.0/22 | Valid | RIR databaseRIPE | 672 100% |
| 148.252.16.0/23 | Valid | RIR databaseRIPE | 672 100% |
| 148.252.18.0/23 | Valid | RIR databaseRIPE | 672 100% |
| 148.252.20.0/23 | Valid | RIR databaseRIPE | 672 100% |
| 148.252.22.0/23 | Valid | RIR databaseRIPE | 672 100% |
| 148.252.24.0/22 | Valid | RIR databaseRIPE | 672 100% |
| 148.252.28.0/22 | Valid | RIR databaseRIPE | 672 100% |
| 185.89.32.0/22 | Valid | RIR databaseRIPE | 672 100% |
| 185.159.91.0/24 | Valid | RIR databaseRIPE | 672 100% |
| 185.201.32.0/24 | Valid | RIR databaseRIPE | 672 100% |
| 185.201.33.0/24 | Valid | RIR databaseRIPE | 672 100% |
| 185.201.34.0/23 | Valid | RIR databaseRIPE | 672 100% |
| 185.217.156.0/24 | Valid | RIR databaseRIPE | 672 100% |
| 185.217.157.0/24 | Valid | RIR databaseRIPE | 672 100% |
| 185.243.104.0/22 | Valid | RIR databaseRIPE | 672 100% |
| 194.31.184.0/23 | Valid | RIR databaseRIPE | 672 100% |
| 194.113.44.0/23 | Valid | RIR databaseRIPE | 672 100% |
| 194.113.46.0/23 | Valid | RIR databaseRIPE | 672 100% |
| 5.83.8.0/24 | Valid | RIR databaseRIPE | 671 100% |
| 194.31.187.0/24 | Valid | RIR databaseRIPE | 668 99% |
| 2a01:6240::/48 | Valid | RIR databaseRIPE | 635 100% |
| 2a01:6240:80::/48 | Valid | RIR databaseRIPE | 635 100% |
| 2a01:6241:8000::/34 | Valid | RIR databaseRIPE | 635 100% |
| 2a01:6243::/34 | Valid | RIR databaseRIPE | 635 100% |
| 2a01:6244::/34 | Valid | RIR databaseRIPE | 635 100% |
| 2a01:6244:8000::/34 | Valid | RIR databaseRIPE | 635 100% |
| 2a10:cb81::/34 | Valid | RIR databaseRIPE | 634 100% |
| 2a01:6240:19::/48 | Valid | RIR databaseRIPE | 633 100% |
| 2a01:6240:22::/48 | Valid | RIR databaseRIPE | 633 100% |
| 2a01:6240:23::/48 | Valid | RIR databaseRIPE | 633 100% |
| 2a01:6240:24::/48 | Valid | RIR databaseRIPE | 633 100% |
| 2a01:6240:26::/48 | Valid | RIR databaseRIPE | 633 100% |
| 2a01:6240:30::/48 | Valid | RIR databaseRIPE | 633 100% |
| 2a01:6242::/34 | Valid | RIR databaseRIPE | 633 100% |
| 2a01:6242:8000::/34 | Valid | RIR databaseRIPE | 633 100% |
| 2a01:6245::/34 | Valid | RIR databaseRIPE | 633 100% |
| 2a01:6247::/34 | Valid | RIR databaseRIPE | 633 100% |
| 2a01:6247:8000::/34 | Valid | RIR databaseRIPE | 633 100% |
| 2a10:cb80::/48 | Valid | RIR databaseRIPE | 631 99% |
| 2a10:cb80::/29 | Valid | RIR databaseRIPE | 630 99% |
| 185.243.104.0/24 | Valid | RIR databaseRIPE | 380 56% |
| 185.243.105.0/24 | Valid | RIR databaseRIPE | 380 56% |
| 185.243.106.0/24 | Valid | RIR databaseRIPE | 380 56% |
| 194.113.44.0/24 | Valid | RIR databaseRIPE | 380 56% |
| 194.113.45.0/24 | Valid | RIR databaseRIPE | 380 56% |
| 88.97.120.0/22 | Valid | RIR databaseRIPE | 379 56% |
| 88.97.124.0/22 | Valid | RIR databaseRIPE | 379 56% |
| 148.252.16.0/24 | Valid | RIR databaseRIPE | 379 56% |
| 148.252.17.0/24 | Valid | RIR databaseRIPE | 379 56% |
| 194.31.184.0/24 | Valid | RIR databaseRIPE | 379 56% |
| 194.31.185.0/24 | Valid | RIR databaseRIPE | 379 56% |
| 5.83.9.0/24 | Valid | RIR databaseRIPE | 378 56% |
| 88.97.136.0/22 | Valid | RIR databaseRIPE | 120 18% |
| 88.97.140.0/22 | Valid | RIR databaseRIPE | 120 18% |
AS-SET
PeeringDB's irr_as_set for AS58273: AS-B4RN. Expanded from the day's IRR dumps the way bgpq4 does against whois.radb.net: a name with a database is read from that database only, one without from the first database in RADB's order. "Not covered" = this network's own routes that a filter built from the set would leave out (AS58273 isn't in the set, or no route object for AS58273 covers the route; more-specifics of a route object are accepted down to /24 and /48, as with bgpq4 -A -R 24 / -R 48). Customers' routes aren't counted: the collectors show each route's origin, not which network it came through.
| Name | Database | ASNs | Sets | AS58273 in it | Not covered |
|---|---|---|---|---|---|
| AS-B4RN | RIPE | 2 | 1 | Yes | 0 |
Fix list
The changes that would bring RPKI, the IRR and what's announced into line. Some are deliberate (a route object kept for a backup route, say); the network decides. All 22 are in fix.csv.
- Route object: none4
- Route object: not announced18
| Change | Prefix or set | Detail |
|---|---|---|
| Route object: none | 5.83.8.0/23 | No route object for it. A route object for 5.83.8.0/21 with origin AS58273 covers it (filters allowing more-specifics accept it). Add a route object with origin AS58273 in the RIR database for the space. |
| Route object: none | 88.97.156.0/24 | No route object for it. A route object for 88.97.156.0/22 with origin AS58273 covers it (filters allowing more-specifics accept it). Add a route object with origin AS58273 in the RIR database for the space. |
| Route object: none | 2a01:6246::/34 | No route object for it. A route object for 2a01:6240::/29 with origin AS58273 covers it (filters allowing more-specifics accept it). Add a route object with origin AS58273 in the RIR database for the space. |
| Route object: none | 185.243.107.0/24 | No route object for it. A route object for 185.243.104.0/22 with origin AS58273 covers it (filters allowing more-specifics accept it). Add a route object with origin AS58273 in the RIR database for the space. |
Route objects not announced
Route objects with origin AS58273 whose prefix no peer sees AS58273 announce. Many are kept on purpose (backup routes, space announced only in some places).
| 5.83.8.0/21 | RIPE | Valid |
| 88.97.112.0/20 | RIPE | Valid |
| 88.97.128.0/19 | RIPE | Valid |
| 88.97.152.0/21 | RIPE | Valid |
| 88.97.156.0/22 | RIPE | Valid |
| 148.252.16.0/20 | RIPE | Valid |
| 149.86.240.0/20 | RADB | No ROA |
| 185.201.32.0/22 | RIPE | Valid |
| 185.217.156.0/23 | RIPE | Valid |
| 185.217.158.0/23 | RIPE | Valid |
| 194.31.184.0/22 | RIPE | Valid |
| 194.31.186.0/23 | RIPE | Valid |
| 194.31.186.0/24 | RIPE | Valid |
| 194.113.44.0/22 | RIPE | Valid |
| 2a01:6240::/29 | RIPE | Valid |
| 2a09:1880::/29 | RIPE | Valid |
| 2a0b:cac0::/29 | RIPE | Valid |
| 2a0d:f80::/29 | RIPE | Valid |
Routes: the 08:00 UTC snapshots of 2026-11-12 from 75 RIPE RIS and RouteViews collectors. RPKI: our rpki-client run before the snapshot. IRR: the day's dumps of the five RIR databases and RADB's mirrors. The LEVEL3 and IDNIC databases publish no dump and aren't read, so route objects only there count as none.