| Business | Phone |
| Arbos Communications Inc 1100 Wayne Ave, Silver Spring 20910 | (240) 494-7000 |
| Tel & Tel Pay Phones Inc 10401 Georgia Ave, Silver Spring 20902 | (301) 649-5558 |
| City Net Telecommunications 8405 Colesville Rd # 6, Silver Spring 20910 | (240) 645-1693 |
| Cyphony Communications Inc 1100 Wayne Ave, Silver Spring 20910 | (301) 585-4779 |
| Music Telecom Inc 12407 Kemp Mill Rd, Silver Spring 20902 | (301) 622-5330 |