Prefix information will be updated periodically from the NANPA database of
Texas prefixes in use in each area code. All prefixes listed on the Texas Area Codes site reflect NANPA numbering data through January, 2010. Because of the way
telephone data is assembled, some cities may not be on the list. If you feel any city is not
listed or is listed incorrectly, please send the city, prefix, and area code to
firstname.lastname@example.org and it will be researched and added if NANPA’s information coincides. Any questions or comments about the Texas
Area Codes section of the PUC site should also be sent to this address.