Area Code 465 – Aguascalientes

Overview of Area Code 465

Area code 465 is a geographic numbering plan area (NPA) within the Mexican national numbering plan, conforming to ITU-T E.164 standards. It serves the state of Aguascalientes, specifically the municipalities of Calvillo and its surrounding rural and semi-urban communities. This code is assigned to fixed-line PSTN services, though some local carriers may also offer VoIP-based fixed telephony under this prefix. The region is known for its agricultural production, particularly guava, and its growing tourism sector centered on the Pueblo Mágico of Calvillo.

Geographic Coverage and Jurisdiction

The 465 area code covers the western portion of Aguascalientes state, with Calvillo as the principal city. Other localities within this code include Malpaso, La Labor, and smaller ejidos. The administrative jurisdiction falls under the Federal Telecommunications Institute (IFT), which oversees numbering resources in Mexico. Calvillo is approximately 50 kilometers west of the state capital, Aguascalientes City, which uses area code 449.

Dialing Formats and Procedures

For local calls within the 465 area code, users must dial the 10-digit national number, which includes the three-digit area code followed by a seven-digit local number. For example, to call a fixed line in Calvillo, you would dial 465 123 4567 (where 123 4567 is the local subscriber number). For calls from other parts of Mexico, dial the national long-distance prefix '01' followed by the 10-digit number: 01 465 123 4567. International callers should dial Mexico's country code +52, then the 10-digit number: +52 465 123 4567. Note that the '+' sign represents the international access code used in the caller's country (e.g., 011 from the US/Canada).

Overlay and Numbering Considerations

Currently, there is no overlay code for 465; it is the sole area code for this region. However, as demand grows, the IFT may introduce an overlay in the future, which would require 10-digit dialing for all local calls. As of now, all calls within Mexico, including local calls, require 10-digit dialing since 2019, when the national numbering plan eliminated the distinction between local and long-distance dialing for fixed lines. This simplifies dialing for users.

Caller Instructions

• Local callers (within 465): Dial the 10-digit number (465 + 7-digit local number).
• National callers (outside 465): Dial 01 + 465 + 7-digit local number.
• International callers: Dial your country's exit code + 52 + 465 + 7-digit local number.

For example, a caller from the United States would dial 011 52 465 123 4567. A caller from the United Kingdom would dial 00 52 465 123 4567.

This area code is used exclusively for fixed-line services; mobile numbers in Aguascalientes use the non-geographic mobile prefixes 449 and others, which are not tied to a specific geographic area. When dialing a Mexican mobile number, always include the 10-digit number preceded by +52 for international calls.