Mexico Dial Plan Change

Problem Description

Mexico’s IFT (Federal Communications Institute) has announced a new standardized dialing plan that will simplify Mexico’s current dial plan. The new dial plan will implement 10-digit uniform dialing country wide and will go into effect August 3, 2019.

The new dial plan includes the elimination of several well-known calling prefixes. The prefixes to be removed include:

  • 01 – used as a prefix for dialing to landlines nationwide.
  • 044 – used to dial from landlines to mobile national numbers
  • 045 – used for national long-distance calls
  • 1 – international callers will no longer need to dial the extra 1 that was required when dialing cellphone numbers

The new dial plan will also include a migration of emergency services numbers to a single emergency number 911. The emergency numbers that will be consolidated are listed below:

  • 060 Local police
  • 061 State judicial police
  • 065 Red Cross
  • 066 National Citizen's Emergency Response System
  • 068 Firemen
  • 080 Safety and emergency

Note: These numbers have already migrated to emergency number 911 as of 2016.

Latest version of the Instituto Federal de Telecomunicaciones (IFT) published changes can be accessed via the following URLs:

Problem Symptom

Users are unable to complete calls via LAN or mobile lines. Caller receives a busy tone signal.


Reconfigure the dial plan and or dial peer on the platform(s) that route to the PSTN. This must be done in order to comply with the new 10-digit dialing plan.

This new plan consists of a combination of the Long-Distance code + Local Number. For example, in order to call a cellphone or landline located in Mexico City you will need to dial as seen below:

Mexico City long distance code (55) + Local number (1234 5678) = 55 1234 5678


Cisco recommends CUCDM customers update their dial plan workflow in order to resolve this issue.  Please update the necessary workflow using the Mexico-CUCDM_CountryDialPlanMex-V7-T3 schema file.

Schema File Download URL:


If you are unable to access the schema file using the provided URL, please contact and request file access.

Please refer to the Instituto Federal de Telecomunicaciones (IFT) via the following URLs in order to view the latest published changes: