For both mobile and fixed line numbers, the first digit is repeated. So numbers that began with 3 will now start with 33. Those starting with 7 are now 77, and so on. The only affected numbers will be those beginning with 3, 4, 5, 6 and 7.
For example:
3152145 became 33152145
4856986 became 44856986
5319734 became 55319734
6226881 became 66226881
7925522 became 77925522
Please note: Emergency telephone numbers in Qatar, including 999 and 112, are not affected by the change. Numbers used for SMS, toll free and paging services, short codes, and the numbers owned by the Ministry of Interior will also remain the same. These are numbers beginning with 1, 2, 8 and 9.