This utility checks a list of UK telephone numbers and returns the same list amended for any number changes required by the Big Number Change. Entered numbers are also checked for validity against the UK Specified Numbering Scheme, published by Ofcom. Finally, the error report also identifies any duplicate phone numbers which may be present in your list. Numbers may be of any UK type, including standard terrestrial PSTN, mobiles, pagers, nationally dialed 'lo-call', and premium rate services.
Enter the list of UK telephone numbers to be checked, including dialing codes, but please note that a list in excess of 1,000 telephone numbers may cause the browser to time out: