When dialing from a Travelers Aid desk, just dial the last 5 digits

Non-EMERGENCY703-41(7-2400)
Travelers Aid Office703-41(7-3975)
Terminal A Desk703-41(7-3972/73)
Terminal B Desk703-41(7-1816/17)
Terminal C Desk703-41(7-1818/19)
Baggage North703-41(7-2667/2668)
Baggage South703-41(7-2664/2665)