312 Area Code
Where is 312 area code in USA?
The 312 area code in USA 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 312.
Does the 312 area code always have the same location?
Yes, a telephone prefix always has the same location, in the case of 312, it will always be a telephone located the 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 312 area code and you ask yourself: Where is the 312 area code?, the answer will be Illinois.
How to call from abroad to a phone located with area code 312?
To call a telephone from abroad using the 312 area code, you must dial the international prefix of the United States (+1), the 312 area code and the local telephone number you wish to call. In other words, you must dial:
+1 312 [Phone number]
It should be remembered that all calls from one country to another country, for example calling from outside the USA to a 312 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.