Why do we use 44?
The "+44" in a phone number is the international dialing code for the United Kingdom. It is used when dialing a UK phone number from outside the country.
Where is 44 used?
United Kingdom Country Code 44 - Worldometer.
Do I replace +44 with 0?
Sometimes you will see a phone number in an ad with a plus in front of it, for example +44 123 456 789. This means the phone number is in the country with country code 44 (UK). You can normally dial this number from your phone by simply replacing the plus (+) with 00 (zero zero).
What is +44 on a phone?
United Kingdom Country Code 44 Country Code GB.