Saturday, March 03, 2007

Central American

[edit] Mexico
Country Code: 52

In 1999 Mexico introduced the following new prefixes for use when making long distance calls from telephones in Mexico:

00 - international direct dialing (00 + country code + nat'l number)
including USA and Canada.
01 - domestic direct dialing (01 + area code + number)
02 - domestic operator dialing (02 + area code + number)
09 - international operator dialing (09 + country code + number)
including USA and Canada.
These codes are not used when calling Mexico from other contries. Such calls should be dialed using whatever international call prefix (such as +, 00, or 011) is required when making international calls from the country where the call originates.)

Mexican area codes are 3 digits long, except for Mexico City (55), Monterrey (81), Guadalajara (33) and their respective outlying areas.

Likewise, local numbers are 7 digits long, while Mexico City, Monterrey, and Guadalajara use 8 digit numbers. 8 digit numbers are commonly written two ways:

xxxx xxxx
xx xx xx xx
When dialed within its local area, calling-party-pays mobile phone numbers have a designated prefix: 044 - mobile phone (044 + area code + number) For example, when calling within area code 33, a Guadalajara mobile phone would be dialed as: 044 33 xxxx xxxx This prefix is dropped when the number is dialed from another city in Mexico and the domestic prefix 01 is used since calling-party-pays calls can only be made when the mobile subscriber is being called from the same local area. This regulation changed since November 8, 2006, enabling calling-party-pays nationwide (prefix 045). However, some telco operators have refused the new scheme. Outside the country, mobiles are dialed in the same way as regular lines: +52 33 xxxx xxxx

It is common to see businesses with multiple lines on the same telephone exchange list their alternate lines without repeating the common numbers. For example, "(55) xxxx xx10, 19, 22 y 24" would signify a series of lines in Mexico City:

(55) xxxx xx10
(55) xxxx xx19
(55) xxxx xx22
(55) xxxx xx24