AS3300 British Telecommunications Limited 🇬🇧 GB
Announcing 152 prefixes, seen at the RIS collectors.
IPv4 prefixes
123
604,416 (2,361 × /24)
IPv6 prefixes
29
3 × /32
Upstreams
11
transit providers observed
Peers
12
settlement-free adjacencies
Downstreams
19
transit customers observed
Customer cone
21
ASes reachable through it
Registry and operator data
- AS number
- AS3300
- Name
- British Telecommunications Limited
- Organisation
- British Telecom GIIB
- Country
- 🇬🇧 GB
- RIR
- RIPENCC
- Allocated
- 1994-10-28
- Network type
- Cable/DSL/ISP
- Traffic levels
- 100-1000Mbps
- Scope
- Global
- Peering policy
- Selective
- IRR as-set
- AS-BT-GLOBAL
- Website
- http://www.bt.net
- PeeringDB
- net/257
- Exchanges
- 16
RPKI coverage of this AS
Its own announcements, validated against the current ROA set
Announced prefixes
152 in total
| Prefix | RPKI | Peers | Sample path | First seen |
|---|---|---|---|---|
| 61.14.0.0/18 v4 | RPKI valid | 40 | 244823300 | 2026-09-18 |
| 61.14.1.0/24 v4 | RPKI valid | 39 | 557203300 | 2026-09-18 |
| 61.14.2.0/23 v4 | RPKI valid | 39 | 244823300 | 2026-09-18 |
| 61.14.4.0/22 v4 | RPKI valid | 39 | 244823300 | 2026-09-18 |
| 61.14.7.0/24 v4 | RPKI valid | 39 | 244823300 | 2026-09-18 |
| 61.14.8.0/22 v4 | RPKI valid | 39 | 557203300 | 2026-09-18 |
| 61.14.11.0/24 v4 | RPKI valid | 39 | 244823300 | 2026-09-18 |
| 61.14.12.0/22 v4 | RPKI valid | 39 | 557203300 | 2026-09-18 |
| 61.14.15.0/24 v4 | RPKI valid | 39 | 557203300 | 2026-09-18 |
| 61.14.20.0/22 v4 | RPKI valid | 39 | 557203300 | 2026-09-18 |
| 61.14.24.0/22 v4 | RPKI valid | 39 | 244823300 | 2026-09-18 |
| 61.14.28.0/22 v4 | RPKI valid | 40 | 557203300 | 2026-09-18 |
| 61.14.31.0/24 v4 | RPKI valid | 40 | 557203300 | 2026-09-18 |
| 61.14.32.0/22 v4 | RPKI valid | 40 | 244823300 | 2026-09-18 |
| 61.14.34.0/24 v4 | RPKI valid | 40 | 557203300 | 2026-09-18 |
| 61.14.36.0/22 v4 | RPKI valid | 39 | 557203300 | 2026-09-18 |
| 61.14.36.0/24 v4 | RPKI valid | 39 | 557203300 | 2026-09-18 |
| 61.14.39.0/24 v4 | RPKI valid | 39 | 244823300 | 2026-09-18 |
| 61.14.40.0/22 v4 | RPKI valid | 41 | 34549308443300 | 2026-09-18 |
| 61.14.44.0/22 v4 | RPKI valid | 41 | 34549308443300 | 2026-09-18 |
| 61.14.48.0/22 v4 | RPKI valid | 41 | 34549308443300 | 2026-09-18 |
| 61.14.52.0/24 v4 | RPKI valid | 39 | 244823300 | 2026-09-18 |
| 63.250.128.0/18 v4 | RPKI valid | 41 | 226523300 | 2026-09-18 |
| 63.250.128.0/22 v4 | RPKI valid | 40 | 226523300 | 2026-09-18 |
| 63.250.131.0/24 v4 | RPKI valid | 40 | 3454912993300 | 2026-09-18 |
| 63.250.132.0/22 v4 | RPKI valid | 40 | 3454912993300 | 2026-09-18 |
| 63.250.132.0/24 v4 | RPKI valid | 40 | 3454912993300 | 2026-09-18 |
| 63.250.135.0/24 v4 | RPKI valid | 40 | 3454912993300 | 2026-09-18 |
| 63.250.136.0/23 v4 | RPKI valid | 40 | 226523300 | 2026-09-18 |
| 63.250.138.0/24 v4 | RPKI valid | 41 | 377213300 | 2026-09-18 |
| 63.250.139.0/24 v4 | RPKI valid | 40 | 226523300 | 2026-09-18 |
| 63.250.140.0/22 v4 | RPKI valid | 40 | 226523300 | 2026-09-18 |
| 63.250.144.0/22 v4 | RPKI valid | 41 | 377213300 | 2026-09-18 |
| 63.250.144.0/24 v4 | RPKI valid | 41 | 377213300 | 2026-09-18 |
| 63.250.147.0/24 v4 | RPKI valid | 41 | 377213300 | 2026-09-18 |
| 63.250.148.0/22 v4 | RPKI valid | 40 | 226523300 | 2026-09-18 |
| 63.250.151.0/24 v4 | RPKI valid | 39 | 226523300 | 2026-09-18 |
| 63.250.152.0/22 v4 | RPKI valid | 40 | 3454912993300 | 2026-09-18 |
| 63.250.155.0/24 v4 | RPKI valid | 40 | 3454912993300 | 2026-09-18 |
| 63.250.156.0/22 v4 | RPKI valid | 40 | 226523300 | 2026-09-18 |
| 63.250.159.0/24 v4 | RPKI valid | 40 | 226523300 | 2026-09-18 |
| 63.250.160.0/22 v4 | RPKI valid | 41 | 226523300 | 2026-09-18 |
| 63.250.163.0/24 v4 | RPKI valid | 41 | 226523300 | 2026-09-18 |
| 63.250.164.0/24 v4 | RPKI valid | 40 | 226523300 | 2026-09-18 |
| 63.250.165.0/24 v4 | RPKI valid | 40 | 226523300 | 2026-09-18 |
| 63.250.168.0/22 v4 | RPKI valid | 40 | 226523300 | 2026-09-18 |
| 63.250.171.0/24 v4 | RPKI valid | 40 | 226523300 | 2026-09-18 |
| 63.250.172.0/24 v4 | RPKI valid | 40 | 3454912993300 | 2026-09-18 |
| 63.250.173.0/24 v4 | RPKI valid | 41 | 377213300 | 2026-09-18 |
| 63.250.174.0/24 v4 | RPKI valid | 40 | 226523300 | 2026-09-18 |
| 63.250.176.0/22 v4 | RPKI valid | 40 | 226523300 | 2026-09-18 |
| 63.250.180.0/22 v4 | RPKI valid | 40 | 226523300 | 2026-09-18 |
| 63.250.184.0/22 v4 | RPKI valid | 40 | 226523300 | 2026-09-18 |
| 63.250.187.0/24 v4 | RPKI valid | 40 | 226523300 | 2026-09-18 |
| 63.250.189.0/24 v4 | RPKI valid | 40 | 226523300 | 2026-09-18 |
| 63.250.191.0/24 v4 | RPKI valid | 40 | 226523300 | 2026-09-18 |
| 72.29.128.0/20 v4 | RPKI valid | 41 | 226523300 | 2026-09-18 |
| 72.29.132.0/22 v4 | RPKI valid | 40 | 226523300 | 2026-09-18 |
| 136.238.168.0/24 v4 | no ROA | 40 | 226523300 | 2026-09-18 |
| 136.238.185.0/24 v4 | no ROA | 40 | 557203300 | 2026-09-18 |
| 136.238.187.0/24 v4 | no ROA | 40 | 557203300 | 2026-09-18 |
| 136.238.229.0/24 v4 | no ROA | 41 | 377213300 | 2026-09-18 |
| 136.238.232.0/24 v4 | no ROA | 40 | 226523300 | 2026-09-18 |
| 136.238.238.0/24 v4 | no ROA | 40 | 226523300 | 2026-09-18 |
| 136.238.239.0/24 v4 | no ROA | 40 | 226523300 | 2026-09-18 |
| 136.238.240.0/24 v4 | no ROA | 40 | 226523300 | 2026-09-18 |
| 136.238.241.0/24 v4 | no ROA | 40 | 226523300 | 2026-09-18 |
| 136.238.243.0/24 v4 | no ROA | 41 | 377213300 | 2026-09-18 |
| 185.249.5.0/24 v4 | no ROA | 40 | 226523300 | 2026-09-18 |
| 185.249.6.0/24 v4 | no ROA | 40 | 557203300 | 2026-09-18 |
| 192.92.18.0/24 v4 | no ROA | 40 | 226523300 | 2026-09-18 |
| 192.92.19.0/24 v4 | no ROA | 39 | 557203300 | 2026-09-18 |
| 192.92.20.0/22 v4 | RPKI valid | 40 | 226523300 | 2026-09-18 |
| 192.92.24.0/21 v4 | RPKI valid | 41 | 226523300 | 2026-09-18 |
| 192.92.32.0/19 v4 | RPKI valid | 41 | 226523300 | 2026-09-18 |
| 192.92.80.0/23 v4 | RPKI valid | 40 | 226523300 | 2026-09-18 |
| 192.92.82.0/24 v4 | RPKI valid | 40 | 226523300 | 2026-09-18 |
| 192.157.130.0/23 v4 | RPKI valid | 40 | 226523300 | 2026-09-18 |
| 192.157.132.0/22 v4 | RPKI valid | 40 | 226523300 | 2026-09-18 |
| 192.157.136.0/21 v4 | RPKI valid | 41 | 226523300 | 2026-09-18 |
| 192.157.144.0/20 v4 | RPKI valid | 41 | 226523300 | 2026-09-18 |
| 192.157.160.0/23 v4 | RPKI valid | 40 | 226523300 | 2026-09-18 |
| 192.237.64.0/18 v4 | RPKI valid | 41 | 226523300 | 2026-09-18 |
| 194.33.52.0/24 v4 | no ROA | 40 | 557203300 | 2026-09-18 |
| 195.206.69.0/24 v4 | RPKI valid | 41 | 226523300 | 2026-09-18 |
| 195.206.70.0/24 v4 | RPKI valid | 41 | 226523300 | 2026-09-18 |
| 198.137.75.0/24 v4 | no ROA | 40 | 226523300 | 2026-09-18 |
| 198.178.237.0/24 v4 | no ROA | 40 | 557203300 | 2026-09-18 |
| 198.178.239.0/24 v4 | no ROA | 40 | 226523300 | 2026-09-18 |
| 198.207.64.0/18 v4 | RPKI valid | 41 | 226523300 | 2026-09-18 |
| 198.207.64.0/22 v4 | RPKI valid | 40 | 226523300 | 2026-09-18 |
| 198.207.67.0/24 v4 | RPKI valid | 40 | 226523300 | 2026-09-18 |
| 198.207.68.0/22 v4 | RPKI valid | 40 | 226523300 | 2026-09-18 |
| 198.207.72.0/22 v4 | RPKI valid | 40 | 226523300 | 2026-09-18 |
| 198.207.74.0/24 v4 | RPKI valid | 40 | 226523300 | 2026-09-18 |
| 198.207.75.0/24 v4 | RPKI valid | 40 | 226523300 | 2026-09-18 |
| 198.207.76.0/22 v4 | RPKI valid | 40 | 226523300 | 2026-09-18 |
| 198.207.78.0/24 v4 | RPKI valid | 40 | 226523300 | 2026-09-18 |
| 198.207.79.0/24 v4 | RPKI valid | 40 | 226523300 | 2026-09-18 |
| 198.207.80.0/22 v4 | RPKI valid | 41 | 377213300 | 2026-09-18 |
| 198.207.127.0/24 v4 | RPKI valid | 40 | 226523300 | 2026-09-18 |
| 199.6.64.0/18 v4 | RPKI valid | 41 | 226523300 | 2026-09-18 |
| 203.187.128.0/19 v4 | RPKI valid | 40 | 244823300 | 2026-09-18 |
| 203.187.128.0/22 v4 | RPKI valid | 40 | 557203300 | 2026-09-18 |
| 203.187.145.0/24 v4 | RPKI valid | 39 | 244823300 | 2026-09-18 |
| 203.187.146.0/24 v4 | RPKI valid | 39 | 557203300 | 2026-09-18 |
| 204.52.187.0/24 v4 | no ROA | 40 | 226523300 | 2026-09-18 |
| 204.79.84.0/24 v4 | no ROA | 40 | 226523300 | 2026-09-18 |
| 204.140.64.0/18 v4 | RPKI valid | 41 | 226523300 | 2026-09-18 |
| 204.231.0.0/17 v4 | RPKI valid | 41 | 226523300 | 2026-09-18 |
| 204.231.128.0/18 v4 | RPKI valid | 41 | 226523300 | 2026-09-18 |
| 205.248.0.0/16 v4 | RPKI valid | 41 | 226523300 | 2026-09-18 |
| 206.182.0.0/16 v4 | RPKI valid | 41 | 226523300 | 2026-09-18 |
| 206.182.128.0/18 v4 | RPKI valid | 41 | 226523300 | 2026-09-18 |
| 206.182.134.0/24 v4 | RPKI valid | 40 | 226523300 | 2026-09-18 |
| 206.182.164.0/24 v4 | RPKI valid | 40 | 226523300 | 2026-09-18 |
| 206.182.192.0/18 v4 | RPKI valid | 41 | 226523300 | 2026-09-18 |
| 207.117.0.0/16 v4 | no ROA | 41 | 226523300 | 2026-09-18 |
| 207.209.0.0/16 v4 | no ROA | 41 | 226523300 | 2026-09-18 |
| 207.209.0.0/19 v4 | no ROA | 41 | 226523300 | 2026-09-18 |
| 207.209.64.0/19 v4 | no ROA | 41 | 226523300 | 2026-09-18 |
| 209.28.0.0/16 v4 | RPKI valid | 41 | 226523300 | 2026-09-18 |
| 209.28.174.0/24 v4 | RPKI valid | 40 | 226523300 | 2026-09-18 |
| 2402:fb00::/32 v6 | RPKI valid | 38 | 244823300 | 2026-09-18 |
| 2402:fb00::/36 v6 | RPKI valid | 38 | 244823300 | 2026-09-18 |
| 2402:fb00:f00::/40 v6 | RPKI valid | 38 | 244823300 | 2026-09-18 |
| 2402:fb00:1000::/36 v6 | RPKI valid | 38 | 244823300 | 2026-09-18 |
| 2402:fb00:1f00::/40 v6 | RPKI valid | 38 | 244823300 | 2026-09-18 |
| 2402:fb00:2000::/36 v6 | RPKI valid | 38 | 244823300 | 2026-09-18 |
| 2402:fb00:2f00::/40 v6 | RPKI valid | 38 | 244823300 | 2026-09-18 |
| 2402:fb00:3000::/36 v6 | RPKI valid | 38 | 244823300 | 2026-09-18 |
| 2402:fb00:3f00::/40 v6 | RPKI valid | 38 | 244823300 | 2026-09-18 |
| 2606:f100::/32 v6 | no ROA | 34 | 226523300 | 2026-09-18 |
| 2606:f100::/36 v6 | no ROA | 34 | 226523300 | 2026-09-18 |
| 2606:f100:f00::/40 v6 | no ROA | 34 | 226523300 | 2026-09-18 |
| 2606:f100:1000::/36 v6 | no ROA | 34 | 226523300 | 2026-09-18 |
| 2606:f100:1f00::/40 v6 | no ROA | 38 | 244823300 | 2026-09-18 |
| 2606:f100:2000::/36 v6 | no ROA | 33 | 3800190023300 | 2026-09-18 |
| 2606:f100:2f00::/40 v6 | no ROA | 33 | 3800190023300 | 2026-09-18 |
| 2606:f100:3000::/36 v6 | no ROA | 34 | 226523300 | 2026-09-18 |
| 2606:f100:3f00::/40 v6 | no ROA | 34 | 226523300 | 2026-09-18 |
| 2606:f100:4000::/36 v6 | no ROA | 34 | 226523300 | 2026-09-18 |
| 2606:f100:4f00::/40 v6 | no ROA | 34 | 226523300 | 2026-09-18 |
| 2606:f100:5000::/36 v6 | no ROA | 34 | 226523300 | 2026-09-18 |
| 2606:f100:5f00::/40 v6 | no ROA | 34 | 226523300 | 2026-09-18 |
| 2606:f100:6000::/36 v6 | no ROA | 34 | 38001308443300 | 2026-09-18 |
| 2606:f100:7000::/36 v6 | no ROA | 34 | 226523300 | 2026-09-18 |
| 2606:f100:7f00::/40 v6 | no ROA | 34 | 226523300 | 2026-09-18 |
| 2606:f100:8000::/36 v6 | no ROA | 34 | 226523300 | 2026-09-18 |
| 2606:f100:8f00::/40 v6 | no ROA | 33 | 149073300 | 2026-09-18 |
| 2606:f100:9000::/36 v6 | no ROA | 34 | 226523300 | 2026-09-18 |
| 2606:f100:c000::/36 v6 | no ROA | 34 | 226523300 | 2026-09-18 |