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 Nigeria
Here are the instructions on how to call the country of Canada from the United Kingdom.
To call Nigeria, dial 00234 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 +234 omit the 234 and replace it with the UK international dialing code of 00. For example:
Phone Number in Nigeria
Dialed from the United Kingdom
+234 xx xx xxx
00 xx xx xxx
42 37 524
00 42 37 524
How to call the UK from Nigeria
To call a landline or mobile phone in the United Kingdon from Nigeria, dial 009 44, then dial the UK phone number, minus the leading zero. For example: