Welcome to Active Numbers. This site offers a presentation of the Specified Numbering Scheme published by the Office of Telecommunications in the United Kingdom. Numbers Telephone number allocation in the United Kingdom is administered by Oftel .
Information concerning UK telephone numbers is published weekly.
This site presents that information in a form that is easier to understand. Click here to enter the UK telephone number database. You can make queries against specific telephone numbers or partial telephone numbers to find out status of that number and, if it has been allocated, which operator currently holds the range to which it belongs. We have made some changes to this site which we hope will make it easier to use. Navigation has been improved, and the layout has been simplified to enabled faster loading.