THE CALLER CONFIDENCE LIBRARY
UK phone numbers
Make sense of UK area codes, number formats and telephone preferences.
UK phone numbers
What the Telephone Preference Service can do
The TPS can reduce unsolicited live marketing calls. Understand its scope before expecting it to stop every nuisance call.
Read the guide →UK phone numbers
UK telephone area codes and number formats
Understand geographic prefixes, +44 formatting and why a number’s allocation is different from a caller’s identity.
Read the guide →