So I was curious and poked around the Common App website and Google Maps. I found the address of their HQ:
The Common Application, Inc.
13135 Lee Jackson Highway, Suite 300
Fairfax, VA 22033
and proceeded to plug it into Maps: apparently it's a building containing suites for several other companies as well.
3 Phoenix Inc
Apply Yourself Inc
CDM Federal Programs Corporation
Common Application Inc
First Financial Title Agency
Janet Watts For Re/Max Premier
Long & Foster Real Estate
Long & Foster Realtors
Re/Max Premier: Gales Karen
Shapiro & Burson Llp
State Farm Insurance
Vascular Center of Nephrology
Vienna Real Estate - Kevin D Dugan
Then I clicked on the Common App link, and found this phone number: (703) 378-9788
Although the Common App officially doesn't provide phone support, it would be interesting to call this number and wheedle some answers out of them...is there anyone (who either has long distance or lives in the area) who feels adventurous enough to try calling them?