| ZIP Code | Verizon | ATT | T-Mobile |
|---|---|---|---|
| 94518 | 100% | 100% | 100% |
| 94519 | 100% | 100% | 100% |
| 94521 | 100% | 100% | 100% |
| 94520 | 100% | 100% | 100% |
| Licensee | Address | Height | Tower Type |
|---|---|---|---|
| GTE MOBILNET OF CALIFORNIA LIMITED PARTNERSHIP | 2001-2003 Diamond Blvd, Concord, CA 94520 | 31.1 | B |
| GTE MOBILNET OF CALIFORNIA LIMITED PARTNERSHIP | 101 Avila Rd, Concord, CA 94520 | 0 |
| Carrier | Address | Comment | Date Added |
|---|---|---|---|
| Sprint | 1668 Kasba St | Reception in home is unacceptable. If you want to make calls without immediately being dropped is to have on speaker away from any physical objects including face OR take calls outside. | 2015 |
| Verizon | 5050 Crystyl Ranch Dr | Dead Spoit | 2019 |
| AT&T | 1037 Pinehurst Ct | Limited signal strength in various parts of neighborhood, dropped calls | 2014 |
| AT&T | 1124 Victory Ln | Blackberry hotspot is at 100% but web browser states I am offline. | 2019 |
| Verizon | 3816 Vintage Ct | Frequent dropped calls, slow internet connecting and data transfers | 2016 |
| AT&T | 107 Roslyn Dr | ONE BAR | 2015 |
| T-Mobile | 3643 Lolita Dr | Limited coverage at this address and no wireless coverage | 2015 |
| Carrier | Address | Phone | Directions |
|---|---|---|---|
| AT&T | 2015 Diamond Blvd Suite 125, Concord, CA, 94520 | 925-692-0068 | Directions |
| Verizon | 474 Sun Valley Mall, Concord, CA, 94520 | 925-222-2156 | Directions |
| T-Mobile | 1701 Willow Pass Road Suite B, Concord, CA, 94520 | 925-363-4597 | Directions |