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

MWAA Police/EMT/Fire703-41(7-2400)
Terminal 1 Desk703-41(7-3972)
South Checkpoint Desk703-910-8114
703-41(7-1806)
North Checkpoint Desk703-910-8113
703-41(7-1806)
South Baggage Desk703-41(7-2664)
North Baggage Desk703-41(7-2667)
Travelers Aid Office703-41(7-3975)