- Marathon On-Line Services
Northwest based Telecommunications provider. Long Distance, 800, Cellular, Internet and Web Hosting Services.
- Maritime Telegraph and Telephone Co. Ltd. (MT&T)
Telecommunications supplier to homes and businesses.
- Market Communications
Full service, 24/7 telecommunications provider servicing clients in the United States. Specializes in turn-key solutions for financial trading, PBX systems, wireless, and high speed data.
Hungarian telecommunications service provider.
- Maximum Network Solutions Ltd
Official site of MCI, a provider of residential voice, advanced messaging, and commercial phone and telecommunications services in the United States.
- MED-1 Submarine Cables
Operates an undersea high-speed fiber optic cable network connecting Israel/Cyprus to Italy.
- MiDAS Management Systems
Specialises in call management and voice mail systems for businesses, hotels, and hospitals.
- Mobile Broadband 4G
Offers information about the mobile broadband plans offered by various providers, including Verizon, CLEAR, and AT&T.
Official site of Motorola, provider of mobility products and solutions across broadband and wireless networks. Products include cell phones and mobile devices, networking and broadband peripherals, and cellular network systems.
- Mpower Communications
Provider of data, telephony, Internet access, and web hosting services.
- Multi Media Communications
Provides one-way and two-way communications systems, both wired and wireless.