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 Monaco
Here are the instructions on how to call the country of Canada from the United Kingdom.
To call Monaco, dial 00377 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 +377 omit the 377 and replace it with the UK international dialing code of 00. For example:
Phone Number in Monaco
Dialed from the United Kingdom
+377 xxx xxx xx
00 xxx xxx xx
923 423 22
00 923 423 22
How to call the UK from Monaco
To call a landline or mobile phone in the United Kingdon from Monaco, dial 00 44, then dial the UK phone number, minus the leading zero. For example: