What is the Area Code for Monterrey?
The association describes fixed-line numbering coverage and should not be treated as proof of a caller’s current location.
🇲🇽 Nuevo LeónMonterrey Area Code
Monterrey Area Code
in Mexico
Monterrey is associated with 81 in this selected fixed-line directory. The code must be combined with country calling code +52 when called internationally.
Featured area code81
Nuevo León
Monterrey and Nuevo León
Monterrey is listed under Nuevo León in this directory. Administrative borders and telephone numbering areas can differ.
How to Call Monterrey
From within Mexico: 81 + subscriber number
From abroad: +52 81 + subscriber number
Do not add an obsolete domestic trunk prefix.
Time Zone in Monterrey
Multiple IANA time zones; rules vary by location
America/Mexico_City: Calculated in your browser
For multi-zone countries, confirm the destination city’s IANA zone before scheduling a call.
Nearby directory entries
Related Cities in Mexico
Related means a shared featured region or telephone code; it does not imply a precise geographic boundary.
No related priority entry yet
The country directory will expand as current official geographic data is verified.
Common questions
Monterrey Calling FAQ
What is the area code for Monterrey?
Monterrey is associated with 81 in the featured fixed-line directory.
What country code is used for Monterrey?
Monterrey is in Mexico, which uses country calling code +52.
Can the code prove a caller is in Monterrey?
No. Numbering association is not live geolocation, and portability, forwarding or internet telephony can change where a call is received.