I’m always running to the googler to find an APO for a bare spot on a mountain in Vietnam… or Laos or wherever. It’s nice to have an alphabetical order to the system as well. Here’s the First MOB’s-short for 1st Mobile Communications Group . They were technically part of GEEIA (Ground Electrical Installation Installation Agency) out of Clark Airbase PI. They were just as convinced it stood for the Greatest Electrical Engineers in Asia.
You can visit their site here https://1stmob.com.
The list below is there. I find sometimes someone forgets to pay the bills and these treasures are lost forever-thus I copy them to preserve them.
I ran into these guys in some of the most out of the way places I may talk about some day. I shared Box L APO Seattle 96243 with them in 70. Thank you 1st MOB for putting this list up for us. I include it as a widget above as well for quick references