The city of Chicago has a new telephone area code, and that means more numbers to dial across the city.

The new 872 area code was rolled out this weekend.

Now, callers will have to dial one, plus the area code, plus the telephone number for all calls in the 312, 773 and 872 area codes. That includes local calls in the same area code.

No one's telephone number will change.

Consumers seeking additional telephone lines will still be able to get 312 and 773 telephone numbers.