UK Area Code Finder
Quick and easy telephone dialling code information
07803 numbers are for mobile phones in the United Kingdom.
All UK 07 numbers are for mobiles, pagers and personal numbering.
07803 numbers are allocated to O2.
Although these numbers are issued to this operator, customers are free to take their number with them when they change networks. The 07803 prefix is not a reliable indicator of which network a phone is currently connected to, only which network issued it originally.
There is no set format for UK mobile phone numbers, but the commonest format is: 07803 xxxxxx
For international callers, use: +44 7803 xxxxxx