K Southern 3 Region
The address for the FAA Southern 3 Region office is as follows:
 
278A
2850 E Valencia Rd
Mail Drop 33N1
Tucson AZ 85706
 
Phone: (855) 432-7587
FAX:
(602) 257-7031 (Area codes 602, 480, and 623)
(844) 680-9840 (Toll Free from any other area code)
 
Processing Center teams managed by the Southern 3 Region are as follows:
 
Mesa Processing Center (168C)
Tucson Processing Center A (280C)
Tucson Processing Center B (281C)
Tucson Processing Center C (265C)