| Business | Phone |
| Alcatel 6701 Democracy Blvd # 300, Bethesda 20817 | (301) 571-2420 |
| Verizon Communications 6701 Democracy Blvd, Bethesda 20817 | (301) 571-9420 |
| American Tower Corp 5601 River Rd, Bethesda 20816 | (301) 229-0257 |
| Stratos Global Corp 6901 Rockledge Dr # 900, Bethesda 20817 | (301) 214-8800 |
| Columbia Wireless Facilities 9410 Holland Ave # 1000, Bethesda 20814 | (301) 571-4356 |
| Planet Telecom & Technologies 3 Bethesda Metro Ctr, Bethesda 20814 | (301) 652-1323 |
| Electra Limited 4905 Del Ray Ave # 212, Bethesda 20814 | (301) 913-0474 |
| Ficks Communications 4525 Rosedale Ave, Bethesda 20814 | (240) 601-4200 |
| Mjd Patient Communications 4915 Saint Elmo Ave # 306, Bethesda 20814 | (301) 657-8010 |