California 213 and 323 area code changes

AT&T has notified the District that beginning July 8, all local calls in the 213 and 323 area codes will require dialing a 10-digit number (1 + area code + telephone number.)  
See message from AT&T below: 
Who will be impacted?
All customers in the 213 and 323 area codes will be impacted.

What will the new dialing procedure be?
To complete local calls from a landline phone, callers in the 213 and 323 area codes must use the new dialing procedure. This means that calls currently dialed with 7 digits will need to be dialed using 1+ 10 digits (1 + area code + telephone number).

To complete local calls from within or between the 213 and 323 area codes from a cellular or mobile phone, callers may dial the area code + telephone number or 1 + area code + telephone number.

When will the changes take place?
Beginning July 8, customers in the 213 and 323 area codes must use the new dialing procedure for all local calls. If customers do not use the new dialing procedure, the call will not be completed. A recording will instruct customers to hang up and dial again.

Beginning Aug. 1, 213 numbers may be assigned the 323 area code and 323 numbers may be assigned the 213 area code.

What will customers need to do?
Besides changing the way they dial a number, customers must reprogram all services, automatic dialing equipment or other types of equipment currently programmed with a 7-digit number. All must use the new 1+ 10 digit numbers.

Some examples of services which may need to be reprogrammed include PBX, life safety systems, fax machines, internet dial-up numbers, alarm and security systems, security gates, speed dialers, call forwarding settings and voicemail services. Customers may also want to check their business stationery or advertising materials to ensure the area code + 7-digit number is included.

What will remain the same?
The customer's telephone number, including current area code, will not change.

The price of a call, coverage area and other rates and services will not change.
What is considered a local call today will remain a local call, regardless of the number of dialed digits.

Toll calls will still be dialed using 1 + area code + number; as will local calls beginning July 8. Customers will still dial 3 digits to reach 911, as well as 211, 311, 411, 511, 611, 711 and 811.

Who may customers contact with questions?
If customers have questions about the changes, they can visit