AS13205 British Telecommunications Limited 🇬🇧 GB
Announcing 14 prefixes, seen at the RIS collectors.
IPv4 prefixes
14
20,224 (79 × /24)
IPv6 prefixes
0
-
Upstreams
2
transit providers observed
Peers
0
settlement-free adjacencies
Downstreams
0
transit customers observed
Customer cone
0
ASes reachable through it
Registry and operator data
- AS number
- AS13205
- Name
- British Telecommunications Limited
- Organisation
- British Telecommunications Limited
- Country
- 🇬🇧 GB
- RIR
- RIPENCC
- Allocated
- 2000-05-04
RPKI coverage of this AS
Its own announcements, validated against the current ROA set
Announced prefixes
14 in total
| Prefix | RPKI | Peers | Sample path | First seen |
|---|---|---|---|---|
| 31.11.56.0/23 v4 | no ROA | 40 | 3333540013205 | 2026-09-18 |
| 78.109.0.0/20 v4 | no ROA | 40 | 3333540013205 | 2026-09-18 |
| 78.109.0.0/24 v4 | no ROA | 40 | 3333540013205 | 2026-09-18 |
| 78.109.5.0/24 v4 | no ROA | 40 | 3333540013205 | 2026-09-18 |
| 78.109.6.0/24 v4 | no ROA | 40 | 3333540013205 | 2026-09-18 |
| 78.109.7.0/24 v4 | no ROA | 40 | 3333540013205 | 2026-09-18 |
| 78.109.9.0/24 v4 | no ROA | 40 | 3333540013205 | 2026-09-18 |
| 78.109.10.0/24 v4 | no ROA | 40 | 3333540013205 | 2026-09-18 |
| 78.109.11.0/24 v4 | no ROA | 40 | 3333540013205 | 2026-09-18 |
| 217.140.0.0/20 v4 | no ROA | 40 | 3333540013205 | 2026-09-18 |
| 217.140.12.0/22 v4 | no ROA | 40 | 3333540013205 | 2026-09-18 |
| 217.140.12.0/24 v4 | no ROA | 40 | 3333540013205 | 2026-09-18 |
| 217.140.13.0/24 v4 | no ROA | 40 | 3333540013205 | 2026-09-18 |
| 217.140.32.0/19 v4 | no ROA | 41 | 50304285613205 | 2026-09-18 |