Cell towers in Alton, Illinois
The FCC register lists 11 antenna structures in and around Alton. That is the 89th highest count of any place in Illinois.
Overview
Alton, IL has 11 registered structures, the tallest standing 126 m (413 ft) above ground.
The 11 structures here sit at 0.70 per square mile of land.
Heights are uneven: the median is 61 m (199 ft) but the tallest is 126 m (413 ft), roughly 2.1 times that — usually the signature of a broadcast mast among shorter mobile sites.
The largest registered owner here is American Towers LLC, which holds 3 of them — 27.3% of the local total. Owner is not the same as carrier: tower companies lease space on their structures to several networks at once.
Registrations here span 1985 to 2021.
Structure types
| Tower | 5 | 45% |
| Monopole | 2 | 18% |
| Not specified | 1 | 9% |
| Mast | 1 | 9% |
| Lattice tower | 1 | 9% |
| Guyed tower | 1 | 9% |
Largest registered owners
owner is not the same as carrier| American Towers LLC Tower company | 3 | 27% |
| Liberty Christian Center Other | 1 | 9% |
| Metroplex Communications, INC. Other | 1 | 9% |
| Vertical Bridge Towers V, LLC Tower company | 1 | 9% |
| Sba Towers X, LLC Tower company | 1 | 9% |
Tallest registered structures
| Height | Type | Built | Owner | ASR |
|---|---|---|---|---|
| 126 m (413 ft) | Guyed tower | 2014 | Metroplex Communications, INC. | 125202 |
| 92 m (302 ft) | Lattice tower | 1985 | Crown Castle Gt Company, LLC | 113420 |
| 79 m (260 ft) | Tower | 2003 | Stc Five LLC | 114094 |
| 79 m (259 ft) | Tower | 2001 | American Towers LLC | 2619767 |
| 64 m (209 ft) | Tower | 2001 | American Towers LLC | 101453 |
| 61 m (199 ft) | Tower | 1992 | Liberty Christian Center | 624328 |
| 61 m (199 ft) | Tower | 2011 | Sba Towers X, LLC | 2677286 |
| 50 m (165 ft) | Monopole | 2014 | Cellco Partnership | 2692915 |
| 48 m (157 ft) | Monopole | 2021 | Tillman Infrastructure, LLC | 2717678 |
| 47 m (155 ft) | Mast | 2000 | American Towers LLC | 2603989 |
| 38 m (125 ft) | Not specified | 2004 | Vertical Bridge Towers V, LLC | 2644688 |
When they were registered
| 1980s | 1 | 9% |
| 1990s | 1 | 9% |
| 2000s | 5 | 45% |
| 2010s | 3 | 27% |
| 2020s | 1 | 9% |
Nearby places
- East Alton 6
- Wood River 7
- Godfrey 6
- Edwardsville 18
- Granite City 7
About this data
All figures on this page are aggregated from the federal antenna structure register of 2026-08-23, not from carrier coverage data. The two answer different questions.
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.