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      Long Distance Telephone Service in Ontario, CA

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      1. Data Tel Telephone Service

      Data Tel Telephone Service
      909-390-8897Call Now
      Directions
      Telephone Equipment & Systems-Repair & ServiceTelephone CompaniesTelecommunications Consultants

      4035 E Guasti Rd Ste 312, Ontario, CA 91761

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

      From Business: What we do: Data-Tel is a one-stop shop for all your data and telephony needs. We sell, repair and maintain almost every major telephone system, voicemail, VOIP, data, call…

      YP
      33 Years
      in Business

      8. AT&T Store

      AT&T Store
      909-923-6194Call NowVisit Website
      Directions
      Telephone CompaniesCellular Telephone ServiceWireless Communication

      2200 S Grove Ave, Ontario, CA 91761

      CLOSED NOW:11:00 am - 7:00 pm

      From Business: Stay connected with AT&T in Ontario. We offer phones, tablets, smartwatches, and connected devices from all of your favorite brands. We also offer wireless data plans in…

      16. IntelesysOne

      IntelesysOne
      909-305-1500Call NowVisit Website
      Directions
      Telephone Equipment & Systems-Repair & ServiceTelephone Equipment & Systems-Wholesale & ManufacturersTelephone Equipment & Systems

      3155 Sedona Ct, Ontario, CA 91764

      CLOSED NOW:Closed

      From Business: IntelesysOne is a top phone system company that offers the highest quality communication systems throughout the Greater Los Angeles Area. We assist our clients with our VoIP…

      YP
      44 Years
      in Business

      17. Skypointe Communications

      Skypointe Communications
      310-906-5181Call NowVisit Website
      Directions
      Telephone Equipment & Systems-Repair & Service

      3200 E Guasti Rd Ste 100, Ontario, CA 91761

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

      21. Data Tel Contractors

      Data Tel Contractors
      909-605-9734Call NowVisit Website
      Directions
      Telephone Equipment & Systems-Repair & ServiceTelecommunications ServicesTelephone & Television Cable Contractors

      4035 E Guasti Rd Ste 311, Ontario, CA 91761

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

      From Business: What we do: Data-Tel is a one-stop shop for all your data and telephony needs. We sell, repair and maintain almost every major telephone system, voicemail, VOIP, data, call…

      YP
      27 Years
      in Business

      27. Caltek Technologies

      Caltek Technologies
      909-295-3400Call NowVisit Website
      Telecommunications Services

      4425 E Airport Dr Ste 100, Ontario, CA 91761

      CLOSED NOW:8:30 am - 5:00 pm

      From Business: Our broad experience helps businesses integrate their telecommunication needs and simplify their structured network cabling and telecommunications management. From cabling to…

      YP
      19 Years
      in Business

      28. One Internet America

      One Internet America
      909-457-0906Call NowVisit Website
      Directions
      Telecommunications ServicesTelephone CompaniesInternet Service Providers (ISP)

      350 S. Milliken Ave, Ontario, CA 91761

      OPEN 24 HOURS

      From Business: One Internet America is your local ISP Internet Services Provider offering Fiber Optic and Fixed Wireless Connectivity among other services which gives you an internet always…

      29. Smart Fix

      Smart Fix
      909-476-8596Call Now
      Directions
      1.0
      1.0
      Telephone Equipment & Systems-Repair & ServiceCellular Telephone ServiceCellular Telephone Equipment & Supplies

      1 Mills Cir, Ontario, CA 91764

      CLOSED NOW:11:00 am - 7:00 pm

      "went to Smart Fix at the Ontario Mills Mall. They fix broken electronics. They fully examined my phone and quoted me (in writing) that it would be $60 to fix the screen. When…"

      We found 510 results for Adding Phone Service in or near Ontario, CA.They also appear in other related business categories including Telecommunications Services, Cellular Telephone Service, and Telephone Companies. 19 of the rated businesses have 4+ star ratings.


      The businesses listed also serve surrounding cities and neighborhoods including North Corona, Diamond Bar, and Rowland Heights. These businesses offer their services in one-or-more of the following languages: Spanish, Chinese, and Italian.