Dial code+44
Operators21
| Network | MCC | MNC | Coverage |
|---|---|---|---|
| O2 (Telefonica UK Ltd) | 234 | 10 | Full |
| Vectone Mobile (Mundio Mobile Limited) | 234 | 30 | Unavailable |
| 3 (Hutchison 3G UK Ltd) | 234 | 20 | Full |
| T-Mobile UK (Everything Everywhere Limited) | 234 | 30 | Full |
| Orange (Everything Everywhere Limited) | 234 | 33 | Full |
| Vodafone UK | 234 | 15 | Full |
| BT | — | — | Unavailable |
| 24 Seven Communications Ltd | 234 | 55 | Full |
| Tismi BV | — | — | Full |
| Swiftnet Ltd | 310 | 630 | Limited |
| aql Wholesale Limited | 234 | 73 | Unavailable |
| Telesign Mobile Limited (Routo Telecommunications) | — | — | Unavailable |
| HSL (Hay Systems Ltd) | — | — | Full |
| Truphone (Software Cellular Network Ltd) | — | — | Unavailable |
| Lycamobile UK Limted | — | — | Full |
| Sound Advertising Ltd | — | — | Full |
| Telna (Telecom North America Mobile Inc) | 310 | 840 | Limited |
| Gamma Telecom Holdings Ltd | 234 | 30 | Unavailable |
| (aq) Limited | 234 | 73 | Unavailable |
| Voxbone SA | 234 | 39 | Limited |
| Sky UK Limited | 234 | 57 | Full |