What is Personal numbering?

Personal numbering is the name for the virtual telephone number service in the UK. Typically the national destination code used for this service is 70. The service provides a flexible virtual telephone number able to be routed to any other number, including international mobiles. For example, the UK number +44 70 0585 0070 might route to an Inmarsat satellite phone number, allowing the user to have a UK number while roaming globally.

This service has however been reported as having "significant scamming activity" of various sorts as users can mistakenly assume they are calling a UK mobile telephone number that generally costs far less.