Area Code 738 – Mixquiahuala/Tepatepec, HGO
The phone area code for Mixquiahuala/Tepatepec, HGO is 738 (international format +52738). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 738
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Mixquiahuala/Tepatepec, HGO
Geographic Coverage and Administrative Context
Area code 738 is a geographic National Destination Code (NDC) assigned to the state of Hidalgo (HGO) in central Mexico. It serves the municipalities of Mixquiahuala de Juárez and Tepatepec, along with surrounding localities within the Valle del Mezquital region. The code covers both urban centers and rural communities, with Mixquiahuala being the primary commercial hub. Administratively, these areas fall under the jurisdiction of the state government of Hidalgo, and the numbering plan is regulated by the Instituto Federal de Telecomunicaciones (IFT).
Dialing Formats and Procedures
For local calls within the 738 area code, users must dial the full 10-digit number: 738 XXX XXXX. For calls originating from other area codes within Mexico, the national long-distance format is 01 738 XXX XXXX. International callers should dial +52 738 XXX XXXX (or the alternative +52 1 738 XXX XXXX when calling a mobile number from abroad, though this practice is being phased out). The area code is not an overlay; it is the sole NDC for this region, so no additional digit changes are required.
Telecom Infrastructure and Services
Both fixed-line and mobile services operate under this code. Fixed-line services are provided by Teléfonos de México (Telmex) and other licensed operators, while mobile services are offered by national carriers such as Telcel, Movistar, and AT&T Mexico. The region has seen improvements in broadband and VoIP adoption, but traditional PSTN lines remain prevalent in rural zones. Number portability is available, allowing users to retain their numbers when switching providers.
Caller Instructions
For local callers within the 738 area: simply dial the 10-digit number. For national callers outside the area: dial 01 before the 10-digit number. For international callers: dial your country's exit code, then 52, then the 10-digit number. Example: to call a business in Mixquiahuala from the United States, dial 011 52 738 123 4567. When calling from a mobile phone in Mexico, the 01 prefix is often omitted, but it is still required for landline calls to ensure proper routing.