​California State Teachers' Retirement System (CalSTRS)

 P.O. Box 15275 MS-11

Sacramento, CA  95851-0275

(800) 228-5453

 

California Public Employees Retirement System (CalPERS)

P.O. Box 942704

Sacramento, CA  94229-2704 

(888) 428-2980

 

Public Agency Retirement Services (PARS)

(use website's Contact Us page for address)

(800) 540-6369

 

Social Security Administration

Contact your local office or call (800) 772-1213