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Определение оператора сотовой связи по номеру (весь мир)
Операторы сотовой связи, номера которых начинаются на 12
| Оператор сотовой связи | Диапазон номеров | |
| Начало | Конец | |
| Anguilla Mobile | 1264497 | 1264497 |
| Anguilla Proper | 1264 | 1264 |
| Antigua and Barbuda Mobile | 1268464 | 1268464 |
| Antigua and Barbuda Mobile | 1268723 | 1268724 |
| Antigua and Barbuda Mobile | 1268727 | 1268729 |
| Antigua and Barbuda Mobile | 1268773 | 1268773 |
| Antigua and Barbuda Proper | 1268 | 1268 |
| Bahamas Mobile | 1242357 | 1242357 |
| Bahamas Mobile | 1242359 | 1242359 |
| Bahamas Mobile | 1242457 | 1242457 |
| Bahamas Mobile | 1242557 | 1242557 |
| Bahamas Proper | 1242 | 1242 |
| Barbados Mobile | 124623 | 124623 |
| Barbados Proper | 1246 | 1246 |
| British Virgin Islands Proper | 1284 | 1284 |
| Canada 204 Manitoba | 12040 | 12049 |
| Canada 250 British Columbia | 12500 | 12509 |
| Canada 289 Ontario | 12890 | 12899 |
| Canada Proper | 1204 | 1204 |
| Canada Proper | 1250 | 1250 |
| Canada Proper | 1289 | 1289 |
| United States 201 | 1201 | 1201 |
| United States 206 | 1206 | 1206 |
| United States 210 | 1210 | 1210 |
| United States 212 | 1212 | 1212 |
| United States 213 | 1213 | 1213 |
| United States 215 | 1215 | 1215 |
| United States 228 | 1228 | 1228 |
| United States 248 | 1248 | 1248 |
| United States 251 | 1251 | 1251 |
| United States 253 | 1253 | 1253 |
| United States 281 | 1281 | 1281 |