For most sites, an IP address here identifies as Mexico first and Unidad Habitacional Instituto Mexicano del Seguro Social Narvarte second. Checks that stop at the country, and that is prices, catalogs, language and most geo-blocks, behave the same whether your exit sits in Unidad Habitacional Instituto Mexicano del Seguro Social Narvarte or in Mexico City.
City targeting starts to matter when the question is genuinely local: store stock and pickup, delivery estimates, local search results, regional pricing, or anything a map decides for you. If that is your task, ask for Unidad Habitacional Instituto Mexicano del Seguro Social Narvarte specifically. If it is not, the country exit is cheaper and far more stable.
City-level residential supply moves week to week everywhere, ours included. If nothing is live in Unidad Habitacional Instituto Mexicano del Seguro Social Narvarte the moment you ask, the reliable fallback is a Mexico exit, and the free Mexico list shows the public pool measured live.