Contact Us

National Headquarters

KS&A
11 Keats Court
Coto de Caza, CA 92679

Phone (Toll-Free):  (888) 999-9428

   (888) XXY-WHAT – Klinefelter syndrome (47,XXY) Support Line
   (888) XXX-WHAT – Trisomy X Support Line
   (888) XYY-WHAT – 47,XYY syndrome Support Line

Outside U.S. / Canada:  (949) 858-9428

Facsimile: (949) 858-3443

Email: 




KS&A, 11 Keats Court, Coto de Caza, CA 92679
Call Toll-Free: (888) 999-9428 • Outside USA & Canada: (949) 858-9428