Cuauhtemoc Roma is not a city, but rather one of the districts (delegacion) within Mexico City. The Cuauhtemoc Roma Phone Book is only one of twelve directories published to cover the high-density metropolis of Mexico City.

The Cuauhtemoc Roma commercial directory contains Yellow Pages for the businesses in this district. Many companies have advertisements listing their email and/or web site address. This directory is excellent for creating a targeted email campaign to potential buyers.