Does mexico have the same official cb band as the usa does ??
With all that goes on in Mexico, I would imagine everything goes.
One reference I found stated: Operation of Citizen's Band (CB) Equipment
American tourists are permitted to operate CB radios in Mexico. You
must, however, obtain a 180 day permit for a nominal fee by presenting
your U.S. citizen's band radio authorization at a Mexican consulate or
Mexican Government Tourist Office. This permit cannot be obtained at
the border.
Transmissions on CB equipment are allowed only on channels 9, 10, and
11, and only for personal communication and emergency road assistance.
Any device which increases transmission power to over 5 watts is
prohibited. CB equipment may not be used near radio installations of the
aeronautical and marine services.