There was a post from last year outlining 11 airports with adult-sized changing tables, and now there are 15! Hopefully the pace will pick up, but at least there is progress.
https://wheelchairtravel.org/airports-with-adult-changing-tables-usa/
wheelchairtravel.org
15 Airports in the USA That Have Adult Changing Tables - Wheelchair Travel
A number of airports in the United States are installing adult changing tables, so that every passenger can use the bathroom with dignity while traveling.
