AS2856 British Telecommunications 🇬🇧 GB
British Telecommunications Limited. Announcing 546 prefixes, seen at the RIS collectors.
IPv4 prefixes
539
18,481,664 (72,194 × /24)
IPv6 prefixes
7
136 × /32
Upstreams
2
transit providers observed
Peers
10
settlement-free adjacencies
Downstreams
147
transit customers observed
Customer cone
153
ASes reachable through it
Registry and operator data
- AS number
- AS2856
- Name
- British Telecommunications
- Organisation
- BTnet (BT's UK IP Network - AS2856)
- Country
- 🇬🇧 GB
- RIR
- RIPENCC
- Allocated
- 1993-12-22
- Network type
- NSP
- Traffic levels
- 1-5Tbps
- Scope
- Regional
- Peering policy
- Selective
- IRR as-set
- RIPE::AS-BTGB
- Website
- http://www.bt.net
- PeeringDB
- net/281
- Exchanges
- 2
- Facilities
- 3
RPKI coverage of this AS
Its own announcements, validated against the current ROA set
Announced prefixes
546 in total
| Prefix | RPKI | Peers | Sample path | First seen |
|---|---|---|---|---|
| 5.35.192.0/21 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 5.80.0.0/15 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 5.81.0.0/16 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 5.181.136.0/24 v4 | no ROA | 42 | 503042856 | 2026-09-18 |
| 9.151.0.0/19 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 9.151.208.0/20 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 9.151.248.0/21 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 9.232.192.0/18 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 9.233.48.0/20 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 9.237.96.0/19 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 9.237.128.0/18 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 9.237.192.0/19 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 15.145.20.0/22 v4 | no ROA | 42 | 503042856 | 2026-09-18 |
| 23.26.70.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 23.26.108.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 23.26.117.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 23.26.131.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 23.26.192.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 23.27.32.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 23.27.33.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 23.27.34.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 23.27.35.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 23.27.36.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 23.27.37.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 23.27.38.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 23.27.39.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 23.27.40.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 23.27.102.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 23.27.103.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 23.27.104.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 23.27.105.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 23.27.106.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 23.27.107.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 23.27.108.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 23.230.82.0/23 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 23.230.242.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 23.230.252.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 31.48.0.0/13 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 31.90.0.0/15 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 31.92.0.0/15 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 31.94.0.0/16 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 31.96.0.0/16 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 31.100.0.0/14 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 31.104.0.0/16 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 31.106.0.0/15 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 31.112.0.0/14 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 31.116.0.0/14 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 31.116.0.0/16 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 31.117.0.0/16 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 31.118.0.0/16 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 31.119.0.0/16 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 31.120.0.0/16 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 31.121.0.0/16 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 31.122.0.0/15 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 31.124.0.0/16 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 31.126.0.0/15 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 31.130.240.0/23 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 37.44.229.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 37.44.230.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 37.44.231.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 37.97.112.0/22 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 37.143.0.0/22 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 37.230.61.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 40.27.28.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 40.27.72.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 45.39.116.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 45.39.188.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 45.149.7.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 45.149.168.0/23 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 45.149.170.0/23 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 46.68.0.0/15 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 46.68.66.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 46.248.96.0/22 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 46.248.102.0/23 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 46.248.104.0/23 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 46.248.120.0/22 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 50.117.7.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 50.117.51.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 50.118.154.0/23 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 51.14.0.0/16 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 51.64.32.0/24 v4 | no ROA | 42 | 503042856 | 2026-09-18 |
| 51.64.34.0/24 v4 | no ROA | 36 | 503042856 | 2026-09-18 |
| 51.64.35.0/24 v4 | no ROA | 36 | 503042856 | 2026-09-18 |
| 51.146.44.0/22 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 51.146.128.0/22 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 51.146.136.0/22 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 51.146.235.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 51.146.252.0/22 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 51.149.18.0/24 v4 | no ROA | 42 | 503042856 | 2026-09-18 |
| 51.149.19.0/24 v4 | no ROA | 42 | 503042856 | 2026-09-18 |
| 51.194.36.0/23 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 51.194.100.0/22 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 51.230.0.0/20 v4 | no ROA | 42 | 503042856 | 2026-09-18 |
| 51.230.16.0/20 v4 | no ROA | 42 | 503042856 | 2026-09-18 |
| 51.230.32.0/20 v4 | no ROA | 42 | 503042856 | 2026-09-18 |
| 51.230.48.0/20 v4 | no ROA | 42 | 503042856 | 2026-09-18 |
| 51.230.64.0/20 v4 | no ROA | 42 | 503042856 | 2026-09-18 |
| 51.230.80.0/20 v4 | no ROA | 42 | 503042856 | 2026-09-18 |
| 51.230.96.0/20 v4 | no ROA | 42 | 503042856 | 2026-09-18 |
| 51.230.112.0/20 v4 | no ROA | 42 | 503042856 | 2026-09-18 |
| 51.230.255.0/24 v4 | no ROA | 42 | 503042856 | 2026-09-18 |
| 51.241.3.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 51.241.201.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 62.6.0.0/16 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 62.7.0.0/16 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 62.172.0.0/16 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 62.192.124.0/23 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 62.239.0.0/16 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 62.244.11.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 62.244.12.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 62.244.29.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 62.244.36.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 62.244.37.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 62.244.41.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 62.244.43.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 62.244.45.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 62.244.56.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 64.205.136.0/22 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 64.205.144.0/22 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 72.9.180.0/22 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 77.90.135.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 77.90.138.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 77.90.145.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 77.90.151.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 77.90.153.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 77.90.164.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 77.90.184.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 77.94.224.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 78.105.97.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 78.105.136.0/22 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 78.105.151.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 78.105.175.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 78.105.179.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 78.105.188.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 78.105.191.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 78.105.194.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 78.105.198.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 78.105.200.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 78.105.202.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 79.132.64.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 79.132.65.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 79.139.52.0/23 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 79.139.54.0/23 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 80.81.58.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 81.128.0.0/11 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 81.128.0.0/12 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 81.161.52.0/22 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 82.38.9.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 82.38.56.0/22 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 82.39.173.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 82.41.112.0/22 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 82.108.4.0/22 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 82.108.32.0/21 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 82.108.44.0/22 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 82.108.52.0/22 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 82.108.68.0/22 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 82.108.88.0/23 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 82.108.92.0/22 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 82.108.102.0/23 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 82.108.116.0/22 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 82.108.140.0/22 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 82.108.152.0/23 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 82.136.54.0/23 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 82.140.134.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 82.140.138.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 82.140.143.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 82.140.170.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 82.153.33.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 82.153.85.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 82.153.88.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 82.153.179.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 82.153.181.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 82.153.190.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 82.153.238.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 83.223.153.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 83.223.154.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 83.245.16.0/21 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 83.245.24.0/22 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 84.23.0.0/19 v4 | no ROA | 42 | 503042856 | 2026-09-18 |
| 84.46.177.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 84.46.181.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 84.46.183.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 84.46.188.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 84.46.190.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 84.46.191.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 84.46.194.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 84.55.17.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 84.55.22.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 85.88.224.0/20 v4 | no ROA | 42 | 503042856 | 2026-09-18 |
| 85.88.240.0/23 v4 | no ROA | 42 | 503042856 | 2026-09-18 |
| 85.189.72.0/23 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 85.189.74.0/23 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 85.189.76.0/23 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 85.189.78.0/23 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 85.189.132.0/23 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 85.189.153.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 85.189.154.0/23 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 85.189.156.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 85.189.159.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |
| 85.189.160.0/24 v4 | RPKI valid | 42 | 503042856 | 2026-09-18 |