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800MHz Transition Administrator
8000 Tower Crescent Dr., 14th Fl.
Tysons Corner, VA 22182-2700
TEL: +1-888-800-8220

Department of Homeland Security
4601 N. Fairfax Dr.
Arlington, VA 22203

Department of Homeland Security (DHS) Science and Technology Directorate (S&T)/First Responders Group
245 Murray Lane SW
Washington, DC 20528
TEL: 202-254-2385

Federal Aviation Administration (FAA)
800 Independence Ave. SW
Washington DC 20591
TEL: +1-202-366-4000/FAX: +1-202-267-5039

Federal Communications Commission (FCC)
445 12th St., SW
Washington, DC 20554
TEL: +1-202-418-0600/FAX: +1-202-418-2082

First Responder Network Authority (FirstNet)

Joint Interoperability Test Command
3341 Strauss Ave., Ste. 236
Indian Head, MD 20640
TEL: 301-744-2602

National Communications Systems (NCS)
14151 Newbrook Dr., Ste. 400
Chantilly, VA 20151 USA
TEL: +1-703-235-5516

National Telecommnications & Information Administration (NTIA)
1401 Constitution Ave. NW
Washington DC 20230
TEL: +1-202-482-7002/FAX: +1-202-219-2077

NTIA/Office of Spectrum Management

Office for Emergency Communications (OEC)
Department of Homeland Security (DHS)
1920 N St., N.W., Washington, DC 20036
TEL: 202-449-7180

Public Safety Communication Management Services (PSCMS)
5365 S. Cody St.
Littleton, CO 80123
TEL: 303-948-7900/FAX: 303-948-7907

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