For more information about the charge group a number is in, and what groups it is local to, find the first few digits in the following list:
01420 01422 014232 014233 014235 014236 014237 014238 01424 01425 01427 01428 01429
If the number you are interested in is not shown, it is not a geographical number or is non-existent.
Numbers beginning 01426 have a number of special uses, such as radio paging. According to recent reports, BT charge for calls to these numbers as follows:
| 01426 | 0 | Free |
| 01426 | 1 | Free |
| 01426 | 2 | Fixed fee #5 (29.7p or 46.8p) |
| 01426 | 3 | Fixed fee #1 (21p) |
| 01426 | 4 | Regional |
| 01426 | 5 | Regional |
| 01426 | 6 | Fixed fee #1 (21p) |
| 01426 | 7 | Fixed fee #3 (12.7p or 25.5p) |
| 01426 | 8 | Local |
| 01426 | 9 | Regional |