AS6871 — British Telecommunications PLC
IP Ranges
| Prefix | Company | Number of IPs |
|---|---|---|
| 31.108.0.0/14 | Plusnet Broadband | 262,144 |
| 31.125.0.0/16 | PlusNet Plc | 65,536 |
| 31.185.32.0/19 | British Telecommunications PLC | 8,192 |
| 31.185.128.0/17 | British Telecommunications PLC | 32,768 |
| 37.152.192.0/18 | British Telecommunications PLC | 16,384 |
| 46.208.0.0/16 | British Telecommunications PLC | 65,536 |
| 51.6.0.0/15 | British Telecommunications PLC | 131,072 |
| 51.9.0.0/16 | British Telecommunications PLC | 65,536 |
| 80.189.0.0/16 | British Telecommunications PLC | 65,536 |
| 80.229.0.0/16 | British Telecommunications PLC | 65,536 |
| 81.140.0.0/17 | BT-MBB | 32,768 |
| 81.140.128.0/19 | adamatk1-mbb-dsl | 8,192 |
| 81.174.128.0/17 | British Telecommunications PLC | 32,768 |
| 83.216.128.0/19 | British Telecommunications PLC | 8,192 |
| 84.51.128.0/18 | British Telecommunications PLC | 16,384 |
| 84.92.0.0/15 | British Telecommunications PLC | 131,072 |
| 87.112.0.0/16 | British Telecommunications PLC | 65,536 |
| 87.113.0.0/16 | PlusNet Plc | 65,536 |
| 87.114.0.0/16 | PlusNet Plc | 65,536 |
| 87.115.0.0/16 | PlusNet Plc | 65,536 |
| 91.125.0.0/16 | British Telecommunications PLC | 65,536 |
| 143.159.0.0/16 | INFONET Services Corporation | 65,536 |
| 146.66.32.0/19 | British Telecommunications PLC | 8,192 |
| 146.90.0.0/16 | British Telecommunications PLC | 65,536 |
| 146.198.0.0/16 | INFONET Services Corporation | 65,536 |
| 146.199.0.0/16 | INFONET Services Corporation | 65,536 |
| 146.200.0.0/16 | INFONET Services Corporation | 65,536 |
| 147.147.0.0/16 | British Telecommunications PLC | 65,536 |
| 150.143.0.0/16 | BT Americas, Inc | 65,536 |
| 194.75.0.0/19 | Plusnet PLC | 8,192 |
| 194.75.80.0/20 | Plusnet PLC | 4,096 |
| 194.75.220.0/22 | Plusnet PLC | 1,024 |
| 195.99.8.0/21 | Plusnet PLC | 2,048 |
| 195.99.32.0/19 | Plusnet PLC | 8,192 |
| 195.99.88.0/21 | Plusnet PLC | 2,048 |
| 195.99.224.0/20 | Plusnet PLC | 4,096 |
| 195.166.128.0/19 | British Telecommunications PLC | 8,192 |
| 195.213.0.0/16 | British Telecommunications PLC | 65,536 |
| 209.93.0.0/16 | INFONET Services Corporation | 65,536 |
| 212.56.64.0/18 | British Telecommunications PLC | 16,384 |
| 212.140.0.0/19 | BT Infrastructure Layer | 8,192 |
| 212.140.32.0/20 | BT Infrastructure Layer | 4,096 |
| 212.140.48.0/21 | BT Infrastructure Layer | 2,048 |
| 212.159.0.0/19 | British Telecommunications PLC | 8,192 |
| 212.159.8.0/23 | Virtual ISP Portal servers | 512 |
| 212.159.32.0/19 | PlusNet Plc | 8,192 |
| 212.159.64.0/18 | PlusNet Technologies Ltd | 16,384 |
| 213.31.0.0/17 | British Telecommunications PLC | 32,768 |
| 213.31.128.0/19 | British Telecommunications PLC | 8,192 |
| 213.31.160.0/20 | British Telecommunications PLC | 4,096 |
| 213.31.176.0/22 | British Telecommunications PLC | 1,024 |
| 213.31.180.0/24 | British Telecommunications PLC | 256 |
| 213.31.182.0/23 | British Telecommunications PLC | 512 |
| 213.31.184.0/21 | British Telecommunications PLC | 2,048 |
| 213.31.192.0/18 | British Telecommunications PLC | 16,384 |
| 213.162.96.0/19 | British Telecommunications PLC | 8,192 |
| 217.32.30.0/23 | Plusnet PLC | 512 |
| 217.32.32.0/20 | Plusnet PLC | 4,096 |
| 217.32.112.0/22 | Plusnet PLC | 1,024 |
| 217.32.148.0/22 | Plusnet PLC | 1,024 |
| 217.32.152.0/21 | Plusnet PLC | 2,048 |
| 217.32.160.0/22 | Plusnet PLC | 1,024 |
| 217.32.176.0/22 | Plusnet PLC | 1,024 |
| 217.39.16.0/20 | Plusnet PLC | 4,096 |
| 217.39.112.0/20 | Plusnet PLC | 4,096 |
| 217.45.24.0/21 | Plusnet PLC | 2,048 |
| 217.45.96.0/20 | Plusnet PLC | 4,096 |
| 217.46.24.0/22 | Plusnet PLC | 1,024 |
| 217.46.128.0/20 | Plusnet PLC | 4,096 |
| 2a02:16c8::/32 | British Telecommunications PLC | 7.92 × 1028 |
| 2a02:16c8::/35 | British Telecommunications PLC | 9.9 × 1027 |
IP ranges are the different blocks of IP addresses advertised by an Autonomous System (AS). These ranges can be used by the same organization operating the AS, or by different organizations.
Peers of AS6871
AS6871 has no peers recorded.
Peering is a direct, often free, traffic exchange between Autonomous Systems (ASNs). They share routes only to their own networks and customers, making connections faster and cheaper for that specific traffic, without providing full internet access to each other.
Upstreams of AS6871
AS6871 uses these Autonomous Systems as its upstreams.
An upstream (or transit provider) is another AS that AS6871 pays for full internet connectivity, allowing it to reach all global destinations and be reachable by them.
Downstreams of AS6871
AS6871 has no downstreams recorded.
A downstream is a customer Autonomous System that pays another AS (its provider) for internet access. The provider AS carries the downstream's traffic and makes its network reachable.
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