How to Make Phone Calls Edit page

Mexico’s New Telephone System

The new standardized dialing system in Mexico means that the prefixes 01 for national long-distance calls, 044 for calls to mobile phones, and 045 for long distance calls from land lines to mobile phones has now been phased out. 

It does not matter what type of telephone (mobile or land line), or where it is located (local or long distance), callers must dial the area code (2 or 3 digits) + the local number (7 or 8 digits) for all phone numbers inside the country.

Callers from abroad can also stop using the extra 1 that was required when dialing cell hone numbers. After accessing an international line (by dialing 011 or, if using a mobile phone, by dialing “+”) such calls from abroad will only require entering Mexico’s two-digit country code (52) before dialing the area code and phone number.

Foreign cell phones while in Mexico will need to put +52 before dialing the area code and phone number of a Mexican phone number.

Use the “001”or “+1” prefix before calling US or Canadian phone numbers.

Special Services:

Service failure report:  050

Emergencies:                   911

Information:                     040

Operator in Mexico:  020

Operator in English:  040

Telmex Numbers

Telephone Bill & Info  (800) 716-8700
Telmex  (800) 123-0000
Internet  (800)123-2222

Dialing Guide: US/Canada Toll-Free from Mexico:

800 numbers are not free, but will go through.

                  for                       dial

• 1-800-XXX-XXXX ---- 001-880-XXX-XXXX
• 1-888-XXX-XXXX ---- 001-881-XXX-XXXX
• 1-877-XXX-XXXX ---- 001-882-XXX-XXXX
• 1-866-XXX-XXXX ----  001-883-XXX-XXXX
• 1-855-XXX-XXXX ---- 001-884-XXX-XXXX
• 1-844-XXX-XXXX ---- 001-885-XXX-XXXX 

Important Tips

• Costs: Calling an 800 number from a Mexican landline or local cell phone is not toll-free and will likely incur international rates.
• Alternative Methods: Using Wi-Fi calling with a U.S. carrier, or VoIP services like Skype, WhatsApp, or Google Voice can avoid charges.
• Within Mexico: If you are calling a Mexican 800 number from a Mexican phone, simply dial the 10-digit number directly (e.g., 800-XXX-XXXX).

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