Cell towers in Altadena, California
The FCC register lists 8 antenna structures in and around Altadena. That is the 192nd highest count of any place in California.
Overview
Altadena, CA has 8 registered antenna structures on the FCC register — the 192nd largest count among the 801 places in California that have any.
Area density is 0.95 per square mile — usually the more telling figure for infrastructure that follows terrain, roads and line of sight rather than population.
Half the registered structures here are taller than 56 m (185 ft) and half are shorter.
The largest registered owner here is American Towers LLC, which holds 4 of them — 50.0% 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 1960.
Structure types
| Tower | 3 | 38% |
| Lattice tower | 3 | 38% |
| Other | 1 | 13% |
| Guyed tower | 1 | 13% |
Largest registered owners
owner is not the same as carrier| American Towers LLC Tower company | 4 | 50% |
| Touch Tel CORP. Other | 1 | 13% |
| Los Angeles Regional Interoperable Communications System (la-rics) Joint Power Authority C/O Pyramid Network Services Government | 1 | 13% |
| US Army Corps of Engineers Other | 1 | 13% |
| Sba Towers III LLC Tower company | 1 | 13% |
Tallest registered structures
| Height | Type | Built | Owner | ASR |
|---|---|---|---|---|
| 296 m (972 ft) | Guyed tower | 1986 | American Towers LLC | 99584 |
| 141 m (464 ft) | Lattice tower | 1983 | American Towers LLC | 98482 |
| 123 m (404 ft) | Lattice tower | 2001 | American Towers LLC | 2618779 |
| 74 m (244 ft) | Other | 2003 | American Towers LLC | 2627035 |
| 38 m (125 ft) | Lattice tower | 2020 | Los Angeles Regional Interoperable Communications System (la-rics) Joint Power Authority C/O Pyramid Network Services | 2713323 |
| 24 m (80 ft) | Tower | 1960 | Touch Tel CORP. | 2682502 |
| 20 m (64 ft) | Tower | 2009 | Sba Towers III LLC | 2668232 |
| 18 m (59 ft) | Tower | 2009 | US Army Corps of Engineers | 2669899 |
When they were registered
| 1960s | 1 | 13% |
| 1980s | 2 | 25% |
| 2000s | 4 | 50% |
| 2020s | 1 | 13% |
Nearby places
- Pasadena 11
- Sierra Madre 13
- Glendale 7
- La Crescenta-Montrose 7
- Arcadia 25
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.