3-1-4 Phone Numbers Must Dial All Ten Digits

(St. Louis) If you have a 3-1-4 area code, you must now dial all ten digits of a phone number to make a call.

There are two reasons for the change, to accommodate the national 9-8-8 crisis lifeline which began operating Saturday, and next month’s launch of a new 5-5-7 area code for the St. Louis region.

The additional 5-5-7 area code is necessary because 3-1-4 is running out of numbers.