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Bray Telephone Co
200 Attestation Blvd (202) 479-9178
 
Chesapeake & Potomac Telephone
7th St & Florida Ave Neamp; (202) 544-8766
 
American Society-Cybernetics
2121 I St Nw # 230 (202) 994-5203
 
Bell South
1133 21st St Nw # 900 (202) 463-4100
 
Broadwing Communications
1120 Vermont Ave Nw (202) 293-1182
 
Cambrian Communication
900 2nd St Ne # 9-10 (202) 266-2160
 
Contact One Communications
1015 Independence Ave Se (202) 543-6662
 
Crg West Llc
1275 K St Nw # 700 (202) 216-0595
 
Future Communications
666 Pennsylvania Ave Se (202) 546-8818
 
General Communication Inc
1130 17th St Nw (202) 457-8812
 
Hannibal Communications
2128 Wyoming Ave Nw (202) 483-1241
 
Hasty Connections
1612 7th St Nw (202) 986-1814
 
In-Flight Phone Corp
1101 17th St Nw (202) 659-0300
 
Interactive Telecom Group
1081 Wisconsin Ave Nw (202) 625-1625
 
Just Jacks Co Inc
1301 Vermont Ave Nw # 308 (202) 462-2759
 
Mci
2500 Calvert St Nw (202) 588-7104
 
Mci Intl
2030 M St Nw # 200 (202) 822-8705
 
Mfs-Icc
1120 G St Nw (202) 637-9580
 
Mid-Atlantic Telecom
2021 L St Nw (202) 659-4646
 
National Telephone Enterprises
1275 K St Nw (202) 682-5837
 
Ntt America Inc
1300 Pennsylvania Ave Nw # 450 (202) 312-1444
 
Overseas Telecommunication
1220 L St Nw (202) 682-1441
 
Powernomics Telcom
606 U St Nw (202) 518-6800
 
Primis Telecommunication Inc
1220 L St Nw # 206 (202) 789-0861
 
Qwest Communications
1275 K St Nw (202) 408-8446
 
Qwest Communications
1500 Eckington Pl Ne # 1 (202) 548-3600
 
Qwest Federal Policy & Law
1020 19th St Nw (202) 429-0303
 
Silver Star Technologies
419 Mellon St Se (202) 563-4330
 
Simply Wireless
660 Pennsylvania Ave Se (202) 546-8818
 
Starnet Corp
1025 Thomas Jefferson St Nw (202) 342-3934
 
Tbsspa Telecommunications
2300 N St Nw (202) 331-2506
 
Telecommunications Consulting
1133 20th St Nw # 800 (202) 419-3357
 
Telecommunications Consulting
1201 Pennsylvania Ave Nw (202) 419-3357
 
Telecommunications Resellers
1401 K St Nw (202) 835-9898
 
Telephone Pioneers Of America
2055 L St Nw (202) 392-6252
 
X O Communications Inc
1150 Connecticut Ave Nw (202) 296-7727
 
Xspedius Communications
1275 K St Nw # 700 (202) 370-9150
 
Zh Technologies Inc
1201 Pennsylvania Ave Nw (202) 661-4709
 
Voda Fone
2300 N St Nw (202) 659-1277
 
Bell South Dc Inc
1133 21st St Nw # 900 (202) 463-4100
 
T-Mobile
2300 Washington Pl NE (202) 269-2151
 
T-Mobile
555 11th St NW (202) 628-4095
 
T-Mobile
2460 Market St NE (202) 470-3699
 
T-Mobile
6431 Georgia Ave NW (202) 601-7286
 
T-Mobile
721 D St SE (202) 800-5607
 
T-Mobile
3204 Pennsylvania Ave SE (202) 575-0100