Tlalnepantla shares the 55 area code (LADA) with Mexico City and the surrounding metropolitan municipalities in the State of Mexico (Edomex).
How to Call Tlalnepantla from Overseas
Calls to the 55 area code require a 10-digit national number. To reach Tlalnepantla from abroad:
- Dial your country's international exit code (e.g., 011 for US/Canada, 00 for UK/Europe)
- Dial 52 (Mexico country code)
- Dial the area code (55)
- Dial the 8-digit local number
Example: Calling Tlalnepantla from the USA
011 52 55 1234 5678
Where:
011 = US exit code
52 = Mexico country code
55 = Tlalnepantla/Mexico City area code
1234 5678 = Local phone number
Quick Facts
Area Code 55 Coverage (Metropolitan Area)
The 55 area code is the most widely used in Mexico, covering the capital and several major industrial municipalities:
Tlalnepantla de Baz
Major industrial and residential hub in the State of Mexico
Mexico City (CDMX)
The entire capital district uses area code 55 (and recently 56)
Naucalpan
Adjacent industrial and commercial municipality
Ecatepec
Highly populated area in the northeast of the metro zone
Tlalnepantla East
The San Juan Ixhuatepec enclave, also served by code 55