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 Tanzania
Here are the instructions on how to call the country of Canada from the United Kingdom.
To call Tanzania, dial 00255 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 +255 omit the 255 and replace it with the UK international dialing code of 00. For example:
Phone Number in Tanzania
Dialed from the United Kingdom
+255 xxx xx xxxx
00 xxx xx xxxx
228 23 5637
00 228 23 5637
How to call the UK from Tanzania
To call a landline or mobile phone in the United Kingdon from Tanzania, dial 000 44, then dial the UK phone number, minus the leading zero. For example: