| T-Mobile | 840 The City Dr S | Terrible coverage at my office. Must use WiFi or nothing comes through phone | 2015 |
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| Verizon | 3811 E Fernwood Ave | Extremely weak | 2014 |
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| Verizon | 691 S Main St | South Main Street, Orange, CA, We have a terrible signal for our work mobile phone with Verizon. The address is 1400 S. Grand Ave, Santa Ana, CA 92705. We need more cell towers around Santa Ana city. | 2019 |
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| AT&T | 211 S Grand St | Stay away from AT&T in this area!!! I remember being told by a shop owner here 15 years ago that AT&T was notorious for no service in/around the cirlce. Now I live here and it's frustrating as heck. My next door neighbor has T Mobile and zero problems. They also don't have any bad reviews in the area on this site, so about to switch to them. Fingers crossed. | 2019 |
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| T-Mobile | Building 1 | UCI Medical Center. Minimal coverage in most of the main hospital. Sitting in waiting Room .. 2nd floor. Should be a great area for coverage -- near a major mall and a major freeway, but it's completely dead. This is an area where having good coverage is important -- doctors and patients!! | 2015 |
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| AT&T | 146 N Shaffer St | No signal inside *or outside*--the area all around the Orange Circle has been an AT&T dead zone for at least 15 years since the Cingular days. We recently switched back to AT&T from Verizon and the coverage in this area is still just as atrocious as ever. Probably going to switch back soon since AT&T apparently doesn't invest in new infrastructure. | 2019 |
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| AT&T | 1123 E Maplewood Pl | phone drops out no service in my house and back yard | 2019 |
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| AT&T | 283 N Cypress St | Absolutely no signal whatsoever. I'm on the third floor of a building. | 2016 |
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| Verizon | 618 E Barkley Ave | Very little 3G and 4G. Have to walk outside and several houses to obtain 2bars. | 2015 |
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| AT&T | 361 W Grove Ave | callers cant hear me or they say its very choppy | 2019 |
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