Originally Posted by BoBaDoB:
“there are 3 formats: 0044, +44 or the 0**********”
Yes, for calls from and to mobiles in the United Kingdom. The 00 prefix is the international prefix for calls originating in the UK (and a number of other countries - including most of Europe.) and as most people know the country code for the UK is 44. However, using 0044xxxx... from UK landlines won't work, neither will it work from countries which have international access codes other than 00 eg USA which us 011 and Belarus which uses 810