I follow flights in and out of the Dallas area. Many of these flights are going to or coming from airports in Mexico. It’s been frustrating to me that FlightAware does not have a ‘mouse-hover’ label giving the cities for these airports. Typically I go to Google and try to figure it out from there.
I’ve just found that Wikipedia has a complete tabulation of ICAO codes, alphabetically, on a world-wide basis. Perhaps some of you would like to bookmark this Wikipedia list of Mexican airports. Codes for other frequently used letters [T, E, etc.] can be reached from the letter index at the top of the web page.
It’s sure more convenient that Google.