Answer: Category I codes
Codes with a plus sign are additional codes that must be used with which of the following?

International country code prefix for Mexico is 52. When dialing a number it must be formatted as " plus sign + country code + 10 digits number" e.g.: +52 NNN ABC XXXX. Central America

Plus codes are designed to be used like street addresses and may be especially useful in places where there is no formal system to identify buildings such as street names house numbers and post codes. Plus codes are derived from latitude and longitude coordinates so they already exist everywhere. They are similar in length to a telephone number – 849VCWC8+R9 for example – but can often be …

ITU-T recommendation E.123 describes how to represent an international telephone number in writing or print starting with a plus sign ("+") and the coun...


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