| Region | Distribution Network Operator | Phone number |
|---|
| Eastern England | EDF Energy | 0870 196 3082 |
| East Midlands | Central Networks | 0845 603 0618 |
| London | EDF Energy | 0845 600 0102 |
| Northern Wales | Scottish Power | 0845 729 2292 |
| West Midlands | Central Networks | 0845 603 0618 |
| North Eastern England | CE Electric | 0845 330 0889 |
| North Western England | United Utilities | 0870 751 0093 |
| Northern Scotland | Scottish & Southern Energy | 0845 744 4555 |
| Southern Scotland | Scottish Power | 0845 729 2292 |
| South Eastern England | EDF Energy | 0845 601 5467 |
| Southern England | Scottish & Southern Energy | 0845 744 4555 |
| Southern Wales | Western Power Distribution | 0845 601 5972 |
| South Western England | Western Power Distribution | 0845 601 5972 |
| Yorkshire | CE Electric | 0845 330 0889 |
