| Country | United Kingdom |
| ASN | AS5400 |
| Description | AS5400 route |
| Organisation | British Telecommunications PLC ORG-CNS3-RIPE |
| IP Range | 212.21.192.0 — 212.21.223.255 |
| Num of IPs | 8192 |
| ASN | AS5400 |
| Name | BT |
| Organisation | British Telecommunications PLC ORG-CNS3-RIPE |
| Range | 212.21.192.0 — 212.21.223.255 |
| CIDR | 212.21.192.0/19 |
