| Network Name | MMC | | MNC |
|---|
| BT Group | 234 | | 77 |
| Cable and Wireless | 234 | | 7 |
| Everyth. Ev.wh./Orange | 234 | | 34 |
| Everyth. Ev.wh./T-Mobile | 234 | | 31 |
| FlexTel | 234 | | 17 |
| H3G Hutchinson | 234 | | 94 |
| HaySystems | 234 | | 14 |
| Inquam Telecom Ltd | 234 | | 75 |
| JSC Ingenicum | 234 | | 35 |
| Lebara | 234 | | 87 |
| Lleida.net Serveis Telematics Limited | 234 | | 99 |
| Lycamobile | 234 | | 26 |
| MASS Response Service GmbH | 234 | | 40 |
| Mapesbury C. Ltd | 234 | | 1 |
| O2 Ltd. | 234 | | 10 |
| OnePhone | 234 | | 8 |
| Opal Telecom | 234 | | 16 |
| PMN/Teleware | 234 | | 19 |
| Railtrack Plc | 234 | | 12 |
| Routotelecom | 234 | | 22 |
| SSE Energy Supply Limited / Gamma telecom Holdings Ltd | 234 | | 39 |
| Sky UK Limited | 234 | | 57 |
| Stour Marine | 234 | | 24 |
| Synectiv Ltd. | 234 | | 37 |
| Tismi | 234 | | 9 |
| Truphone | 234 | | 25 |
| Vectofone Mobile Wifi | 234 | | 23 |
| Virgin Mobile Telecoms Limited | 234 | | 38 |
| Vodafone | 234 | | 27 |
| Wave Telecom Ltd | 234 | | 78 |
