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      Telephone Companies in San Mateo, CA

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      1. UScellular

      UScellular
      800-331-8923Call NowVisit Website
      4.5
      4.5
      Telephone CompaniesCellular Telephone Equipment & SuppliesTelephone Equipment & Systems

      "They have the best coverage and service around! I have been a customer for 8 years, highly recommend!!!"

      YP
      42 Years
      in Business
      Learn More

      2. EarthLink Mobile

      EarthLink Mobile
      855-624-9573Call Now
      Telephone CompaniesTelecommunications ServicesCellular Telephone Service

      Serving the San Mateo Area

      OPEN 24 HOURS

      From Business: Nations largest and best 4G and 5G LTE coverage; Keep up with family and friends; check news; Keep your number and get a new number; tons of choices for cell phone plans;…

      3. AT&T

      AT&T
      855-860-3917Call NowVisit Website
      Directions
      Telephone Companies

      2727 S El Camino Real, San Mateo, CA 94403

      CLOSED NOW:11:00 am - 6:00 pm

      5. Telesys Software

      Telesys Software
      650-522-9922Call NowVisit Website
      Directions
      Telephone CompaniesTelecommunications ConsultantsTelecommunications Services

      1900 S Norfolk St, San Mateo, CA 94403

      CLOSED NOW:12:00 pm - 12:00 am

      From Business: TeleSys Software is among the premier providers of solutions for the next-generation intelligent network. The company develops open-systems software and hardware. Its products…

      6. Etheric Networks, Inc.

      Etheric Networks, Inc.
      650-376-8082Call NowVisit Website
      Directions
      Telephone CompaniesInternet Service Providers (ISP)Internet Products & Services

      1009 S Claremont St, San Mateo, CA 94402

      OPEN 24 HOURS

      From Business: We are Etheric Networks, the Bay Area's trusted high-speed internet provider since 2003. We deliver fast fixed wireless and fiber internet to homes and businesses across San…

      12. Xtelesis Corp

      Xtelesis Corp
      650-239-1400Call NowVisit Website
      Directions
      Telephone Companies

      449 Hillsborough Blvd, Hillsborough, CA 94010

      CLOSED NOW:8:00 am - 5:00 pm

      15. Rearden

      Rearden
      650-212-8400Call Now
      Directions
      Telephone Companies

      1051 E Hillsdale Blvd Ste 600, Foster City, CA 94404

      19. Ekkehart Antique Telephones

      Ekkehart Antique Telephones
      650-571-9070Call Now
      Directions
      Telephone Companies

      1128 El Camino Real, San Carlos, CA 94070

      CLOSED NOW:11:00 am - 5:00 pm

      26. Team One Solutions

      Team One Solutions
      510-357-5555Call NowVisit Website
      Directions
      Telephone CompaniesData Communication ServicesTelecommunications Services

      14729 Catalina St, San Leandro, CA 94577

      CLOSED NOW:8:00 am - 5:00 pm

      From Business: Established in 2002, Team One Solutions Inc. specializes in providing business-grade voice and data communications services. Based in San Leandro, Calif., the firm provides…

      27. Bell South City

      Bell South City
      650-866-4600Call NowVisit Website
      Directions
      Telephone Companies

      400 Cypress Ave, South San Francisco, CA 94080

      CLOSED NOW:

      From Business: Walkable South San Francisco apartments with eco-friendly features, fiber, gym, maker space, jam cafe, controlled parking, EV charging, bike repair, and easy commuter access.

      28. R Q Communications

      R Q Communications
      650-410-5980Call Now
      Directions
      Telephone Companies

      390 Swift Ave, South San Francisco, CA 94080

      30. Synertel

      Synertel
      415-970-0100Call NowVisit Website
      Directions
      Telephone Companies

      80 Tanforan Ave, South San Francisco, CA 94080

      OPEN 24 HOURS