Area Code 434 – Michoacan
The phone area code for Michoacan is 434 (international format +52434). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 434
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Michoacan
Overview of Area Code 434
Area code 434 is a geographic numbering plan area within the Mexican public switched telephone network (PSTN), assigned to the state of Michoacán de Ocampo. It serves a specific region in the northeastern part of the state, covering municipalities that include the city of Zacapu and surrounding communities. This area code is part of the national numbering plan administered by the Instituto Federal de Telecomunicaciones (IFT) under the ITU-T E.164 recommendation.
Geographic Coverage and Administrative Jurisdiction
The 434 area code encompasses a rural and semi-urban zone characterized by agricultural activity and small to medium-sized towns. The principal city within this code is Zacapu, known for its colonial architecture and the nearby Lake Zacapu. Other localities served include Naranja de Tapia, Villa Jiménez, and Panindícuaro. Administratively, these municipalities fall under the jurisdiction of the state of Michoacán, and the region is part of the larger Bajío economic region. The area is served by both fixed-line operators (such as Telmex and cable providers) and mobile networks, though mobile numbers in this region typically use the national mobile prefixes (e.g., 44x) rather than 434.
Dialing Formats
For local calls within the 434 area code, callers can dial the seven-digit local number directly, without the area code. However, for calls from other area codes within Mexico, the full national long-distance format must be used: 01 434 XXX XXXX. For international callers, the format is +52 434 XXX XXXX (or 011 52 434 XXX XXXX from the United States and Canada). It is important to note that Mexico uses an open dialing plan, and the national prefix '01' is required for domestic long-distance calls from landlines. Mobile-to-mobile calls may require the same prefix depending on the operator and the caller's location.
Overlays and Numbering Changes
As of the latest IFT updates, there is no overlay code for 434, meaning that the area code is exclusively used for this geographic region. However, due to growing demand for telecommunication services, the IFT periodically reviews numbering resources, and future overlays or changes are possible. Users should consult official IFT announcements for any modifications.
Caller Instructions
For local callers within the 434 area: simply dial the seven-digit number. For callers from other parts of Mexico, dial 01 434 followed by the seven-digit number. For international callers, dial your country's exit code (e.g., 011 from the US), then 52, then 434, and the seven-digit number. Always verify the number length; local numbers in this area are seven digits, and the total international number length is 12 digits (including the country code).