AS51809 BRSK Limited 🇬🇧 GB
Announcing 40 prefixes, seen at the RIS collectors.
IPv4 prefixes
39
30,976 (121 × /24)
IPv6 prefixes
1
8 × /32
Upstreams
1
transit providers observed
Peers
0
settlement-free adjacencies
Downstreams
1
transit customers observed
Customer cone
2
ASes reachable through it
Registry and operator data
- AS number
- AS51809
- Name
- BRSK Limited
- Organisation
- BRSK
- Country
- 🇬🇧 GB
- RIR
- RIPENCC
- Allocated
- 2021-01-15
- Network type
- Cable/DSL/ISP
- Traffic levels
- 1-5Tbps
- Scope
- Regional
- Peering policy
- Open
- IRR as-set
- AS-BRSK
- Website
- https://www.brsk.co.uk/
- PeeringDB
- net/25697
- Facilities
- 1
RPKI coverage of this AS
Its own announcements, validated against the current ROA set
Announced prefixes
40 in total
| Prefix | RPKI | Peers | Sample path | First seen |
|---|---|---|---|---|
| 31.98.72.0/21 v4 | no ROA | 42 | 3454921265551809 | 2026-09-18 |
| 31.98.80.0/20 v4 | no ROA | 42 | 3454921265551809 | 2026-09-18 |
| 45.41.148.0/22 v4 | no ROA | 42 | 3454921265551809 | 2026-09-18 |
| 45.61.104.0/21 v4 | no ROA | 42 | 3454921265551809 | 2026-09-18 |
| 45.82.140.0/22 v4 | RPKI valid | 42 | 3454921265551809 | 2026-09-18 |
| 63.135.72.0/21 v4 | RPKI valid | 42 | 3454921265551809 | 2026-09-18 |
| 67.208.52.0/22 v4 | RPKI valid | 42 | 3454921265551809 | 2026-09-18 |
| 88.97.160.0/21 v4 | RPKI valid | 42 | 3454921265551809 | 2026-09-18 |
| 88.97.176.0/20 v4 | RPKI valid | 42 | 3454921265551809 | 2026-09-18 |
| 89.127.224.0/22 v4 | RPKI valid | 42 | 3454921265551809 | 2026-09-18 |
| 104.238.40.0/21 v4 | no ROA | 42 | 3454921265551809 | 2026-09-18 |
| 104.238.58.0/23 v4 | no ROA | 42 | 3454921265551809 | 2026-09-18 |
| 104.238.62.0/23 v4 | no ROA | 42 | 3454921265551809 | 2026-09-18 |
| 185.138.196.0/22 v4 | RPKI valid | 42 | 3454921265551809 | 2026-09-18 |
| 185.232.119.0/24 v4 | RPKI valid | 42 | 3454921265551809 | 2026-09-18 |
| 195.40.32.0/24 v4 | RPKI valid | 42 | 3454921265551809 | 2026-09-18 |
| 195.40.33.0/24 v4 | RPKI valid | 42 | 3454921265551809 | 2026-09-18 |
| 195.40.34.0/24 v4 | RPKI valid | 42 | 3454921265551809 | 2026-09-18 |
| 195.40.35.0/24 v4 | RPKI valid | 42 | 3454921265551809 | 2026-09-18 |
| 195.40.36.0/24 v4 | RPKI valid | 42 | 3454921265551809 | 2026-09-18 |
| 195.40.37.0/24 v4 | RPKI valid | 42 | 3454921265551809 | 2026-09-18 |
| 195.40.38.0/24 v4 | RPKI valid | 42 | 3454921265551809 | 2026-09-18 |
| 195.40.39.0/24 v4 | RPKI valid | 42 | 3454921265551809 | 2026-09-18 |
| 195.40.40.0/24 v4 | RPKI valid | 42 | 3454921265551809 | 2026-09-18 |
| 195.40.41.0/24 v4 | RPKI valid | 42 | 3454921265551809 | 2026-09-18 |
| 195.40.42.0/24 v4 | RPKI valid | 42 | 3454921265551809 | 2026-09-18 |
| 195.40.43.0/24 v4 | RPKI valid | 42 | 3454921265551809 | 2026-09-18 |
| 195.40.44.0/24 v4 | RPKI valid | 42 | 3454921265551809 | 2026-09-18 |
| 195.40.45.0/24 v4 | RPKI valid | 42 | 3454921265551809 | 2026-09-18 |
| 195.40.46.0/24 v4 | RPKI valid | 42 | 3454921265551809 | 2026-09-18 |
| 195.40.47.0/24 v4 | RPKI valid | 42 | 3454921265551809 | 2026-09-18 |
| 195.40.48.0/24 v4 | RPKI valid | 42 | 3454921265551809 | 2026-09-18 |
| 195.40.49.0/24 v4 | RPKI valid | 42 | 3454921265551809 | 2026-09-18 |
| 195.40.50.0/24 v4 | RPKI valid | 42 | 3454921265551809 | 2026-09-18 |
| 195.40.51.0/24 v4 | RPKI valid | 42 | 3454921265551809 | 2026-09-18 |
| 195.40.52.0/24 v4 | RPKI valid | 42 | 3454921265551809 | 2026-09-18 |
| 195.40.53.0/24 v4 | RPKI valid | 42 | 3454921265551809 | 2026-09-18 |
| 195.40.54.0/24 v4 | RPKI valid | 42 | 3454921265551809 | 2026-09-18 |
| 195.40.55.0/24 v4 | RPKI valid | 42 | 3454921265551809 | 2026-09-18 |
| 2a10:d580::/29 v6 | RPKI valid | 34 | 3454921265551809 | 2026-09-18 |