# TowerCensus

> The public census of America's antenna structures. TowerCensus catalogues every FCC-registered antenna structure in the United States — heights, locations, owners, FAA studies and lighting — as free, indexable per-tower pages built from the FCC Antenna Structure Registration database. Dataset last updated July 2026.

TowerCensus (towercensus.com) is operated by Hyder Media. All records come from the FCC Antenna Structure Registration (ASR) weekly bulk database — the federal registry of structures requiring registration (generally taller than ~60 m or near airports). One page per registration; owner portfolios grouped by stable FCC licensee identity.

## Key figures (national, updated 2026-07-09)
- 196,742 antenna structures catalogued
- Constructed structures: 141,485
- Tallest structure: 628 m (registration 1038731)
- Distinct owners: 21,798
- Largest owner: American Towers LLC — 21,672 structures

## Key pages
- [Tallest towers in the US](https://towercensus.com/rankings/tallest-towers): Top-100 national height ranking plus per-state rankings.
- [Largest tower owners](https://towercensus.com/rankings/largest-owners): Who owns America's towers, ranked by FCC registrations.
- [Towers by state](https://towercensus.com/towers): All 50 states + DC with counts, heights and per-tower pages.
- [Owner directory](https://towercensus.com/owners): Every owner with 2+ registrations, cross-linked to its towers.
- [Methodology](https://towercensus.com/methodology): Source, processing, coverage caveats and licensing.

## Data & update cadence
The dataset refreshes weekly from the FCC's complete bulk file. Every page carries a machine-readable "Dataset updated" timestamp and Dataset JSON-LD with dateModified.

## Contact & licensing
Contact: kenny@hyder.me. Content may be cited with attribution to "TowerCensus (towercensus.com)". For bulk/API access see the site.