| UK-HIGHSPEEDOFFICE-20010606 | ||||
| 80.71.0.0 — 80.71.31.255 | United Kingdom | 80.71.0.0/19 | 8192 | |
| UK-HIGHSPEEDOFFICE-20010502 | ||||
| 217.196.224.0 — 217.196.255.255 | United Kingdom | 217.196.224.0/19 | 8192 | |
| UK-HIGHSPEEDOFFICE-20060622 | ||||
| 89.248.16.0 — 89.248.31.255 | United Kingdom | 89.248.16.0/20 | 4096 | |
| UK-HIGHSPEEDOFFICE-20080403 | ||||
| 93.89.80.0 — 93.89.95.255 | United Kingdom | 93.89.80.0/20 | 4096 | |
| UK-HIGHSPEEDOFFICE-20101014 | ||||
| 46.17.56.0 — 46.17.63.255 | United Kingdom | 46.17.56.0/21 | 2048 | |
| UK-HIGHSPEEDOFFICE-20120113 | ||||
| 37.46.200.0 — 37.46.207.255 | United Kingdom | 37.46.200.0/21 | 2048 | |
| 2a01:348:: — 2a01:348:ffff:ffff:ffff:ffff:ffff:ffff | United Kingdom | 2a01:348::/32 | 296 | |
| UK-HIGHSPEEDOFFICE-20070509 | ||||
| 77.75.104.0 — 77.75.111.255 | United Kingdom | 77.75.104.0/21 | 2048 | |
| UK-HIGHSPEEDOFFICE-20141028 | ||||
| 185.75.28.0 — 185.75.31.255 | United Kingdom | 185.75.28.0/22 | 1024 | |
| 194.0.76.0 — 194.0.79.255 | United Kingdom | 194.0.76.0/22 | 1024 | |
| GOSCOMB-NET | ||||
| 195.90.120.0 — 195.90.121.255 | United Kingdom | 195.90.120.0/23 | 512 | |
| 195.238.232.0 — 195.238.232.255 | United Kingdom | 195.238.232.0/24 | 256 | |
| HSO-PMI | ||||
| 217.196.246.160 — 217.196.246.167 | HighSpeed Office Limited | United Kingdom | 217.196.246.160/29 | 8 |
| UK-HIGHSPEEDOFFICE-20021115 | ||||
| 2001:a08:: — 2001:a08:ffff:ffff:ffff:ffff:ffff:ffff | United Kingdom | 2001:a08::/32 | 296 | |
| UK-HIGHSPEEDOFFICE-20170419 | ||||
| 2001:678:418:: — 2001:678:418:ffff:ffff:ffff:ffff:ffff | United Kingdom | 2001:678:418::/48 | 280 | |
