Starting on Saturday, Texans with phone numbers in the 254, 361, 409, 806, 830, 915 and 940 area codes should get in the habit of dialing 10-digits (area code + telephone number) for all local calls.

Starting on Aug. 25, all local calls made within the 318 area code, as well as the new overlay area, will require 10-digit dialing, meaning the area code must be dialed along with a seven-digit ...