The Greater San Antonio area in Texas, currently served by NPA 210 will have a new area code overlaying the aforementioned NPA beginning October 23, 2017. The new overlay area code is 726, approved on July 20, 2016 by the Public Utilities Commission of Texas.
- March 25, 2017 – start of permissive 7/10 digit dialing for all calls in the area, local calls included (during the permissive dialing period calls may be dialed using both 7 and 10 digits although 10 digit dialing is encouraged)
- September 23, 2017 – mandatory 10 digit dialing begins
- October 23, 2017 – new area code 726 enters service
See official NANPA announcement and map of the new overlay complex 210/726 (PDF document)