+351 21 Area Code
What is the +351 21 prefix region?
If you receive a call with the area code +351 21, it belongs to a phone located in Portugal, specifically in the region of:
In this case this area code is composed of the Portugal area code (+351) and the region indicator code (21).
Do these regions always use the same area code?
Yes, this phone prefix originates from the same country, in this case Portugal, and will belong to the area(s) indicated above.
So if you receive a call or need to make a call to a phone with area code +351 21 and you ask yourself What is the country of the area code +351 21?, the answer will be Portugal.
How to call from abroad to a phone in Portugal phone using local area code 21?
To call from abroad to a region in Portugal that uses the 21 area code, you must dial the international prefix of Portugal (+351), the 21 area code and the local phone number you wish to call.
+351 21 [Phone number]
It is important to remember that all calls from a foreign country to another country will have a higher cost than calls made in the same country. The final cost of the call will be defined by the telephone company with which the call is made.