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Ontario, CA Carrier Reviews & Coverage Maps

1. Verizon 2.2 star rating (2.2 stars | 5 Reviews)
2. T-Mobile 1 star rating (1 stars | 2 Reviews)
3. AT&T 0.7 star rating (0.7 stars | 3 Reviews)
4. Sprint 0 star rating (0 stars | 4 Reviews)

Total Coverage 1.3 star rating (1.3 stars | 16 Reviews)
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1 Out of 5 (1 star) | Lassen Ave. | Grove, Ontario, CA 91761 |

Told would get better if I bought a better / newer phone; SERVICE WORSE! I live 6 miles from ONTARIO INTERNATIONAL airport, 1 mile from I-60, 1 mile from a major hospital, 5 miles from I-15, about 6 miles from Chino airport. I guess DONALD Trump is right, our country is on a downward slide. Had good service until 5 months ago, now a half a pinky toe in the boot! I think 2 run cans and a string would do better!

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3 Out of 5 (3 stars) | Euclide | F St., Ontario, CA 91761 |

I want to find the location of my phone that I lost about 1 month ago. And I want 4gLTE network.

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1 Out of 5 (1 star) | Milliken Ave. | 4th St., Ontario, CA 91764 |

T-Mobile stinks in the Ontario Mills area. Especially in front of the Target / DSW Shoes shopping center on 4th Street, I get zero reception, no connection, "no service" shows on the screen. However, if you drive East down 4th St. towards Costco (near the 15 Fwy) you can connect although the signal drops in and out. Or, you can drive north on Milliken and by the time you get up around 6th St. or 8th St. you are finally getting enough signal to make a call. I can't understand how they can have such terrible service in the major shopping district of Ontario Mills, and right at the intersection of two major So. Cal. freeways (10 / 15). Get your act together, T-Mobile!

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0 Out of 5 (0 stars) | Landmark | Haven Ave.& Jurupa, Ontario, CA 91761 |

POOR reception, I loose my wireless signal ALLWAYS and comes back on but one bar and then 3g and then nothing. Why are Verizon and other carriers spending so much money boasting of their service when they still have lots of work to do?

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0 Out of 5 (0 stars) | South Ontario Area, Ontario, CA 91761 |

Sprint sucks in this area! Drops calls, late texts, no data - very very slow if it does connect. Good thing I don't live here.

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1 Out of 5 (1 star) | Archibald Off the 60 Freeway | Philadelphia, Ontario, CA 91762 |

I have the note 3 and its just an expensive paper weight when I go to work. One bar, not internet. I tried calling Verizon but they have no clue. I've asked around and it seems its common for Verizon users around that area. UNACCEPTABLE

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1 Out of 5 (1 star) | Riverside Dr. and Haven, Ontario, CA 91762 |

I am supposed to have high speed internet on my plan with T-MOBILE, EVERY OTHER 2 MINUTES THE SERVICE DROPS COMPLETELY WITH PHONE AND INTERNET EVEN AS I TYPE THIS! Why the HELL! I HAVE HAD IT! Its been going on for the last 3 YEARS!

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0 Out of 5 (0 stars) | Grove and Riverside | Euclid and Walnut, Ontario, CA 91761 |

lots of dropped calls cannot rely on Sprint Service. South Ontario area and Chino area almost no service bars. Lose calls all over CA southland. first chance I get, going back to Verizon!

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0 Out of 5 (0 stars) | Milliken and Jurupa | Milliken and Jurupa Baseline and Heritage Cir, Ontario, CA 91761 |

BAD BAD BAD. Reception is horrible at both our business, Ontario, and home, Fontana. We get our clients messages, not calls maybe up to 2 days later..how wrong is that! Our drivers can not get in touch with the office because their radio's and dispatch's radio can not connect. Emails can take 2 days too to come thru. We were told they were updating their cell sites, but then said we needed an Airave to boost the power signal, and we needed to pay for it..WRONG! Why should we pay for your lack of service?... still no help..now after several months of hassles maybe it is the phone that we gave you(Samsung Galaxy SII)you think maybe, but this isn't going to help my drivers? Well SPRINT is now holding us hostage because we are not paying for full monthly service when we are not getting even half service so I get no new phone and we are dealing with HORRIBLE SERVICE... Does anyone else know of a good carrier for walkie-talkie's and in this area?

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0 Out of 5 (0 stars) | Euclid | H, Ontario, CA 91764 |

I keep getting no service from my neighborhoodof euclid ad G st and also outside ontario mills. Wtf is going on... but when I go to the rich areas of upland its full bars... .yah nice Preference sprint. Add a tower in south ontario and Chino... .Youre calls drop and texts received late... .THIS SERVICE sucks! Wasnt like this before June 2011..something or someone really screwed everything up. SO FIX IT!!

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