What a Instituto del Fondo Nacional de la Vivienda para los Trabajadores San Isidro exit buys you over any other Mexico address is locality, not identity. A site that only reads the country treats Instituto del Fondo Nacional de la Vivienda para los Trabajadores San Isidro and Cavas identically, and the great majority of geo-checks work exactly that way.
The difference shows up on local questions: search results with a map pack, stock in nearby stores, delivery windows, prices that vary by area. For those, request Instituto del Fondo Nacional de la Vivienda para los Trabajadores San Isidro. For everything else a plain Mexico exit does the same job with none of the supply constraints.
City-level residential supply moves week to week everywhere, ours included. If nothing is live in Instituto del Fondo Nacional de la Vivienda para los Trabajadores San Isidro the moment you ask, the reliable fallback is a Mexico exit, and the free Mexico list shows the public pool measured live.