Instructions for calling from the UK to international locations requires special calling codes that allow you to connect to countries outside of the United Kingdom.
Calling out to Mauritania
Here are the instructions on how to call the country of Canada from the United Kingdom.
To call Mauritania, dial 00222 and then enter the phone number of the person or location you’re trying to reach. If the phone number is displayed with a leading +222 omit the 222 and replace it with the UK international dialing code of 00. For example:
Phone Number in Mauritania
Dialed from the United Kingdom
+222 xx xx xx xx
00 xx xx xx xx
25 02 43 89
00 25 02 43 89
How to call the UK from Mauritania
To call a landline or mobile phone in the United Kingdon from Mauritania, dial 00 44, then dial the UK phone number, minus the leading zero. For example: