| UK-BT-20050207 | ||||
| 86.128.0.0 — 86.191.255.255 | United Kingdom | 86.128.0.0/10 | 4194304 | |
| UK-BT-20020725 | ||||
| 81.128.0.0 — 81.159.255.255 | United Kingdom | 81.128.0.0/11 | 2097152 | |
| UK-BT-20090806 | ||||
| 109.144.0.0 — 109.159.255.255 | United Kingdom | 109.144.0.0/12 | 1048576 | |
| UK-BT-20000920 | ||||
| 217.32.0.0 — 217.47.255.255 | Provider Local Registry | United Kingdom | 217.32.0.0/12 | 1048576 |
| UK-BT-20101231 | ||||
| 31.48.0.0 — 31.55.255.255 | United Kingdom | 31.48.0.0/13 | 524288 | |
| UK-BT-961016 | ||||
| 194.72.0.0 — 194.75.255.255 | United Kingdom | 194.72.0.0/14 | 262144 | |
| 195.99.0.0 — 195.99.255.255 | United Kingdom | 195.99.0.0/16 | 65536 | |
| UK-BT-20050729 | ||||
| 87.112.0.0 — 87.115.255.255 | United Kingdom | 87.112.0.0/14 | 262144 | |
| UK-BT-20000403 | ||||
| 213.120.0.0 — 213.123.255.255 | PROVIDER Local Internet Registry | United Kingdom | 213.120.0.0/14 | 262144 |
| UK-FORCE9 | ||||
| 51.6.0.0 — 51.7.255.255 | PlusNet plc. | United Kingdom | 51.6.0.0/15 | 131072 |
| UK-BT-20120613 | ||||
| 5.80.0.0 — 5.81.255.255 | United Kingdom | 5.80.0.0/15 | 131072 | |
| UK-BT-990701 | ||||
| 62.6.0.0 — 62.7.255.255 | PROVIDER | United Kingdom | 62.6.0.0/15 | 131072 |
| UK-BT-20040518 | ||||
| 84.92.0.0 — 84.93.255.255 | United Kingdom | 84.92.0.0/15 | 131072 | |
| BT-Retail | ||||
| 31.126.0.0 — 31.127.255.255 | BT Retail | United Kingdom | 31.126.0.0/15 | 131072 |
| UK-BT-20110711 | ||||
| 146.90.0.0 — 146.90.255.255 | United Kingdom | 146.90.0.0/16 | 65536 | |
| 146.66.32.0 — 146.66.63.255 | United Kingdom | 146.66.32.0/19 | 8192 | |
| UK-BT-20101201 | ||||
| 46.208.0.0 — 46.208.255.255 | United Kingdom | 46.208.0.0/16 | 65536 | |
| UK-BT-20020708 | ||||
| 80.189.0.0 — 80.189.255.255 | United Kingdom | 80.189.0.0/16 | 65536 | |
| UK-BT-20031017 | ||||
| 80.229.0.0 — 80.229.255.255 | United Kingdom | 80.229.0.0/16 | 65536 | |
| BT-CENTRAL-PLUS | ||||
| 51.14.0.0 — 51.14.255.255 | BT-CENTRAL-PLUS | United Kingdom | 51.14.0.0/16 | 65536 |
| 31.104.0.0 — 31.104.255.255 | BT-CENTRAL-PLUS | United Kingdom | 31.104.0.0/16 | 65536 |
| UK-BT-20061009 | ||||
| 91.125.0.0 — 91.125.255.255 | United Kingdom | 91.125.0.0/16 | 65536 | |
| FORCE9 | ||||
| 51.9.0.0 — 51.9.255.255 | PlusNet plc. | United Kingdom | 51.9.0.0/16 | 65536 |
| UK-BT-991111 | ||||
| 213.1.0.0 — 213.1.255.255 | PROVIDER | United Kingdom | 213.1.0.0/16 | 65536 |
| UK-BT-981124 | ||||
| 212.140.0.0 — 212.140.255.255 | PROVIDER | United Kingdom | 212.140.0.0/16 | 65536 |
| UK-BT-971021 | ||||
| 195.171.0.0 — 195.171.255.255 | United Kingdom | 195.171.0.0/16 | 65536 | |
| UK-BT-971003 | ||||
| 62.172.0.0 — 62.172.255.255 | United Kingdom | 62.172.0.0/16 | 65536 | |
| UK-BT-990412 | ||||
| 212.159.0.0 — 212.159.127.255 | United Kingdom | 212.159.0.0/17 | 32768 | |
| UK-BT-20110315 | ||||
| 31.185.128.0 — 31.185.255.255 | United Kingdom | 31.185.128.0/17 | 32768 | |
| 31.185.32.0 — 31.185.63.255 | United Kingdom | 31.185.32.0/19 | 8192 | |
| UK-BT-20030228 | ||||
| 81.174.128.0 — 81.174.255.255 | United Kingdom | 81.174.128.0/17 | 32768 | |
| UK-BT-980608 | ||||
| 212.56.64.0 — 212.56.127.255 | United Kingdom | 212.56.64.0/18 | 16384 | |
| UK-BT-20041028 | ||||
| 84.51.128.0 — 84.51.191.255 | United Kingdom | 84.51.128.0/18 | 16384 | |
| UK-BT-20120312 | ||||
| 37.152.192.0 — 37.152.255.255 | United Kingdom | 37.152.192.0/18 | 16384 | |
| UK-BT-981015 | ||||
| 212.82.0.0 — 212.82.31.255 | United Kingdom | 212.82.0.0/19 | 8192 | |
| UK-BT-20040226 | ||||
| 83.216.128.0 — 83.216.159.255 | United Kingdom | 83.216.128.0/19 | 8192 | |
| UK-BT-20021015 | ||||
| 213.162.96.0 — 213.162.127.255 | United Kingdom | 213.162.96.0/19 | 8192 | |
| UK-BT-961211 | ||||
| 195.166.128.0 — 195.166.159.255 | United Kingdom | 195.166.128.0/19 | 8192 | |
| IEUNET2 | ||||
| 192.122.217.0 — 192.122.234.255 | United Kingdom | 192.122.217.0/24, 192.122.218.0/23, 192.122.220.0/22, 192.122.224.0/21, 192.122.232.0/23, 192.122.234.0/24 | 4608 | |
| BT-UK | ||||
| 193.37.160.0 — 193.37.175.255 | United Kingdom | 193.37.160.0/20 | 4096 | |
| UK-BT-20090223 | ||||
| 95.129.184.0 — 95.129.191.255 | United Kingdom | 95.129.184.0/21 | 2048 | |
| UK-BT-20150326 | ||||
| 185.93.168.0 — 185.93.171.255 | United Kingdom | 185.93.168.0/22 | 1024 | |
| UK-BT-20140331 | ||||
| 185.52.108.0 — 185.52.111.255 | United Kingdom | 185.52.108.0/22 | 1024 | |
| UK-BT-20210322 | ||||
| 2a06:7200:: — 2a06:7207:ffff:ffff:ffff:ffff:ffff:ffff | United Kingdom | 2a06:7200::/29 | 299 | |
| UK-BT-20100609 | ||||
| 2a02:16c8:: — 2a02:16c8:ffff:ffff:ffff:ffff:ffff:ffff | United Kingdom | 2a02:16c8::/32 | 296 | |
| UK-BT-20140114 | ||||
| 2a01:7ae0:: — 2a01:7ae0:ffff:ffff:ffff:ffff:ffff:ffff | United Kingdom | 2a01:7ae0::/32 | 296 | |
