Cell towers in San Carlos, California
The FCC register lists 10 antenna structures in and around San Carlos. That is the 166th highest count of any place in California.
Overview
10 antenna structures are registered with the FCC in San Carlos, CA.
Counted against 29,261 residents, that is 34.2 per 100,000 — worth reading alongside area density, since structures cluster along roads and ridgelines rather than where people sleep.
Half the registered structures here are taller than 17 m (54 ft) and half are shorter.
The largest registered owner here is T-mobile West LLC, which holds 3 of them — 30.0% of the local total. Owner is not the same as carrier: tower companies lease space on their structures to several networks at once.
The earliest structure still on the register here dates from 1988.
Structure types
| Pole | 4 | 40% |
| Tower | 2 | 20% |
| Building | 2 | 20% |
| Monopole | 1 | 10% |
| Building with antenna | 1 | 10% |
Largest registered owners
owner is not the same as carrier| T-mobile West LLC Carrier | 3 | 30% |
| City of San Carlos Government | 1 | 10% |
| San Mateo County Airports Other | 1 | 10% |
| San Mateo County Transit District Other | 1 | 10% |
| Cctm1 LLC Other | 1 | 10% |
Tallest registered structures
| Height | Type | Built | Owner | ASR |
|---|---|---|---|---|
| 21 m (70 ft) | Pole | 2007 | City of San Carlos | 2650187 |
| 21 m (68 ft) | Tower | 2003 | San Mateo County Transit District | 2615700 |
| 20 m (66 ft) | Pole | 1994 | Crown Castle Gt Company, LLC | 120667 |
| 20 m (65 ft) | Building with antenna | 2023 | T-mobile West LLC | 2724902 |
| 17 m (57 ft) | Monopole | 1988 | Ccatt LLC | 2628066 |
| 16 m (52 ft) | Building | 2022 | T-mobile West LLC | 2717212 |
| 14 m (47 ft) | Pole | 1996 | Cctm1 LLC | 612336 |
| 14 m (45 ft) | Building | 2022 | T-mobile West LLC | 2720271 |
| 12 m (40 ft) | Pole | 2012 | At&t Mobility Spectrum LLC | 2684386 |
| 9.1 m (30 ft) | Tower | 2007 | San Mateo County Airports | 2655076 |
When they were registered
| 1980s | 1 | 10% |
| 1990s | 2 | 20% |
| 2000s | 3 | 30% |
| 2010s | 1 | 10% |
| 2020s | 3 | 30% |
Nearby places
- Redwood City 6
- San Mateo 8
- Hillsborough 5
- Burlingame 7
- Half Moon Bay 5
About this data
Figures are drawn from the FCC's public antenna structure register (2026-08-23). It covers structures that need registering — broadly those over 200 feet or close to an airport — and not the many shorter installations that carry mobile traffic.
The FCC Antenna Structure Registration database covers structures that require registration — generally those over 200 feet or near airports. Many small cells, rooftop antennas and short towers are not registered and will not appear here.
"Owner" is the entity that registered the structure, usually a tower company such as American Tower or Crown Castle. It does not indicate which carriers operate equipment on the structure.