331 Area Code
Where is the 331 area code?
The 331 area code corresponds to telephone numbers located in Illinois.
This means that if you want to make a call to a telephone number from Illinois region or a call is received from this area, the phone number would have the prefix 331.
Does the 331 area code always has the same location?
Yes, a telephone prefix always has the same location, in the case of 331, it will always be a telephone located in Illinois.
Today's mobile phones usually automatically indicate the location from which the call was made, but older phones do not. In this case, if you receive a call or need to place a call to a phone with a 331 area code and you ask yourself Where is the 331 area code?, the answer will be Illinois.
How to call from abroad to a phone located with area code 331?
To call a telephone from abroad using the 331 area code, you must dial the international prefix of United States (+1), the 331 area code and the local telephone number you want to call. In other words, you must dial:
+1 331 [Phone number]
It should be remembered that all calls from one country to another country, for example calling from outside the USA to a 331 area code phone number, 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.