One of the easiest ways to find the owner of a mobile number in the United Kingdom is to use a reverse look-up service on the Internet. Websites such as MobileNumbers.org and the service UKPhoneNumber.net allow you to type in the mobile number to see if it is registered in their system.
The success of using the online services varies depending upon things such as whether they require mobile numbers to be registered before they are listed; some services charge a fee to reveal the information about the owner of the mobile number to others. Some of these services allow users to upload photos with their phone numbers, enabling you to see the person who owns the mobile number.
If you are trying to locate the owner of a mobile number in the United Kingdom and you are in another country, you must remember to include the country code +44, which is the code for the UK.
The easiest way to find out who owns a particular mobile telephone number is to simply call the number and ask. Sending a text message to the phone may also work, but be sure to identify yourself and describe why you are trying to locate the owner of the phone number, or the recipient may ignore your text.