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 Costa Rica
Here are the instructions on how to call the country of Canada from the United Kingdom.
To call Costa Rica, dial 00506 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 +506 omit the 506 and replace it with the UK international dialing code of 00. For example:
Phone Number in Costa Rica
Dialed from the United Kingdom
+506 xxxx xxxx
00 xxxx xxxx
00 2072 4564
How to call the UK from Costa Rica
To call a landline or mobile phone in the United Kingdon from Costa Rica, dial 00 44, then dial the UK phone number, minus the leading zero. For example: