Sent TeamMar 8, 2026 / area code / Article
Area Code 940 Texas: Complete Coverage Map, Cities & Developer Guide (2025)
Complete area code 940 guide for Texas developers: 79 cities, 23 counties, Denton & Wichita Falls coverage, time zone (Central), 10-digit dialing rules, 988 implementation, NANPA regulations, and telephony integration best practices.
Frequently Asked Questions
What cities are in area code 940 Texas?
When did 940 area code become mandatory 10-digit dialing?
How to dial area code 940 after October 2021?
What is the latitude and longitude of area code 940?
Why does area code 940 require 10-digit dialing?
What is area code 940's geographic coverage?
What area code was 940 split from?
What is the regulatory body that manages area code 940?
How to validate area code 940 phone numbers in an application?
Why is understanding NANPA important for 940 area code?
What counties does the 940 area code cover in Texas?
When should developers consider the history of area code 940?