| GTL | ||||
| 164.39.128.0 — 164.39.255.255 | Gamma Telecom Limited GB | United Kingdom | 164.39.128.0/17 | 32768 |
| UK-GAMMAREG-20060120 | ||||
| 88.215.0.0 — 88.215.63.255 | United Kingdom | 88.215.0.0/18 | 16384 | |
| UK-GAMMAREG-20110105 | ||||
| 188.66.64.0 — 188.66.127.255 | United Kingdom | 188.66.64.0/18 | 16384 | |
| UK-GAMMAREG-20120427 | ||||
| 5.2.96.0 — 5.2.127.255 | United Kingdom | 5.2.96.0/19 | 8192 | |
| UK-GAMMAREG-20060609 | ||||
| 89.213.8.0 — 89.213.39.255 | United Kingdom | 89.213.8.0/21, 89.213.16.0/20, 89.213.32.0/21 | 8192 | |
| UK-GAMMAREG-970909 | ||||
| 195.162.96.0 — 195.162.127.255 | United Kingdom | 195.162.96.0/19 | 8192 | |
| UK-GAMMAREG-20011207 | ||||
| 80.252.64.0 — 80.252.79.255 | United Kingdom | 80.252.64.0/20 | 4096 | |
| UK-GAMMAREG-20030113 | ||||
| 213.218.192.0 — 213.218.207.255 | United Kingdom | 213.218.192.0/20 | 4096 | |
| UK-GAMMAREG-20130319 | ||||
| 185.21.208.0 — 185.21.211.255 | United Kingdom | 185.21.208.0/22 | 1024 | |
| UK-GAMMAREG-20120927 | ||||
| 185.4.196.0 — 185.4.199.255 | United Kingdom | 185.4.196.0/22 | 1024 | |
| UK-GAMMAREG-20120712 | ||||
| 5.144.156.0 — 5.144.159.255 | United Kingdom | 5.144.156.0/22 | 1024 | |
| UK-GAMMAREG-20120917 | ||||
| 2a02:c1c0:: — 2a02:c1c7:ffff:ffff:ffff:ffff:ffff:ffff | United Kingdom | 2a02:c1c0::/29 | 299 | |
