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 Bulgaria
Here are the instructions on how to call the country of Canada from the United Kingdom.
To call Bulgaria, dial 00359 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 +359 omit the 359 and replace it with the UK international dialing code of 00. For example:
Phone Number in Bulgaria
Dialed from the United Kingdom
+359 x x xx xx
00 x x xx xx
2 3 72 79
00 2 3 72 79
How to call the UK from Bulgaria
To call a landline or mobile phone in the United Kingdon from Bulgaria, dial 00 44, then dial the UK phone number, minus the leading zero. For example: