Embassies in Mexico City are mostly located in the northwest of the city, especially in Polanco and Lomas. They represent their country in Mexico and mostly work on developing political and economic ties between Mexico and their respective countries. The embassy is the first stop for any foreign national who has lost their passport, needs a visa, or has found themselves in some sort of legal trouble in Mexico.

It should also be noted that most embassies generally only work from 9 am to 2 pm or 3 pm, so that's the time in which to take care of consular affairs. The issuance of a visa usually takes up to a week, depending on the nationality, and a new passport might take more or less time, depending on the embassy.

Note that some of the biggest embassies are located in the Cuauhtemoc part of town, including the U.S. Embassy in Mexico and the British Embassy in Mexico.