FOS Headquarters:
3975 McMann Road
Cincinnati, OH 45245-2395 
Phone: 513.943.2000
Fax: 513.943.2317
US/Domestic E-Mail: FOS.Cincinnati@L-3com.com
International E-Mail: FOS.Intlsales@L-3com.com

FOS Pennsylvania Operations:
1650 Manheim Pike, Suite 201
Lancaster, PA 17601-3088
Phone: 717.735.0300
Fax: 717.397.8510
E-Mail: FOS.Lancaster@L-3com.com

FOS Arizona Operations:
2727 West Frye Road, Suite 220
Chandler, AZ  85224
Phone: 480.963.5500
Fax: 480.963.5502
E-Mail: FOS.Chandler@L-3com.com