State
Cell towers in California
19,305 towers and cell sites across California. Zoom in to any town, or pick a county below.
Towers with the most carriers in California
| Tower | Height | Owner | Carriers seen |
|---|---|---|---|
| Antenna on a buildingSan Francisco, CA | 820 ft | HWA 555 Owners, LLC | AT&TT-MobileVerizon5G |
| Antenna on a buildingSan Francisco, CA | 592 ft | Nextel of California, Inc | AT&TT-MobileVerizon5G |
| Antenna on a buildingSan Francisco, CA | 575 ft | American Tower | AT&TT-MobileVerizon5G |
| Pipe on a buildingSan Francisco, CA | 575 ft | Pacific Gas & Electric Company | AT&TT-MobileVerizon5G |
| BuildingSan Francisco, CA | 487 ft | Pacific Bell | AT&TT-MobileVerizon5G |
| Tower on a buildingLos Angeles, CA | 477 ft | AT&T | AT&TT-MobileVerizon5G |
| BuildingSan Francisco, CA | 439 ft | American Tower | AT&TT-MobileVerizon5G |
| BuildingLos Angeles, CA | 433 ft | Pacific & Eastern Digital Transmission Service | AT&TT-MobileVerizon5G |
| BuildingLos Angeles, CA | 353 ft | Fifth Street Funding, Inc., a Nevada corporation | AT&TT-MobileVerizon5G |
| TowerOakland, CA | 245 ft | San Francisco Bay Area Rapid Transit District | AT&TT-MobileVerizon5G |
| BuildingEmeryville, CA | 240 ft | American Tower | AT&TT-MobileVerizon5G |
| BuildingOakland, CA | 200 ft | Nextel of California, Inc | AT&TT-MobileVerizon5G |
| BuildingSan Francisco, CA | 174 ft | Pacific Bell Mobile Services | AT&TT-MobileVerizon5G |
| BuildingSan Jose, CA | 170 ft | Nextel of California, Inc | AT&TT-MobileVerizon5G |
| PoleSan Mateo, CA | 167 ft | Verizon | AT&TT-MobileVerizon5G |
| Antenna on a buildingPalo Alto, CA | 160 ft | T-Mobile | AT&TT-MobileVerizon5G |
| TowerBurbank, CA | 155 ft | Fouce Amusement Enterprises Inc | AT&TT-MobileVerizon5G |
| Lattice towerSanta Clara, CA | 123 ft | Crown Castle | AT&TT-MobileVerizon5G |
| Utility poleWalnut Creek, CA | 114 ft | T-Mobile | AT&TT-MobileVerizon5G |
| TowerBurlingame, CA | 112 ft | Pacific Gas & Electric Company | AT&TT-MobileVerizon5G |
| PoleFulton, CA | 97 ft | Pacific Gas & Electric Company | AT&TT-MobileVerizon5G |
| Lattice towerWindsor, CA | 95 ft | Verizon | AT&TT-MobileVerizon5G |
| MonopoleOakland, CA | 94 ft | Pacific Gas & Electric Company | AT&TT-MobileVerizon5G |
| Tower on a buildingSan Diego, CA | 92 ft | California, State of | AT&TT-MobileVerizon5G |
| PoleAtascadero, CA | 90 ft | Pacific Bell Mobile Services | AT&TT-MobileVerizon5G |
Showing 25 of 19,305. Every one is on the map; zoom in to tap any of them.
Carriers in California
Number of towers and sites in the state where each carrier has been seen.
Good to know
Is the company that owns a tower my carrier?
Usually not. Most towers are owned by tower companies such as American Tower, Crown Castle and SBA Communications, which rent space on them to Verizon, AT&T, T-Mobile and others. One tower often carries two or three carriers at different heights. The FCC registration names the owner; it does not list the tenants.
How do you know which carriers are on a tower?
From phones. OpenCelliD collects reports of the cell signals phones see and where they saw them. When reported cells sit within 200 meters of a registered structure, we list those carriers on that structure. It is strong evidence, not a lease record, and it can miss a carrier nobody has reported yet.
Why isn't every cell site on the map?
The FCC only requires registration for structures taller than 200 feet or close to an airport. Rooftop antennas, small cells on street poles and many shorter towers never register. Where phones report a cell site with no registered structure nearby, we show it as an approximate crowdsourced site, which can be off by a few hundred meters.