About Pylon Plans
The FCC publishes a complete register of the antenna structures it regulates — every mast, tower, pole and rooftop installation that needs registration, with its height, its coordinates and who registered it. The data is free and it is updated every week. It is also distributed as a set of pipe-delimited files with no column headers, which is why almost nobody reads it.
Pylon Plans exists to make that register legible. Every one of the 141,542 constructed structures on file gets a page that answers the questions the raw record cannot: how tall is this compared with everything else around it, who actually owns it, what is the nearest one, and how far could a signal from the top of it possibly reach.
What this site is good for
- Finding out what the tall thing near your house is, and who registered it.
- Comparing structure density between places — a question the raw data cannot answer without aggregation.
- Understanding who owns American communications infrastructure. More than half of these structures belong to tower companies rather than to the carriers whose equipment hangs on them.
- Checking what is around a property before you buy.
What it is not good for
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.
It also will not tell you which carrier serves a given site, or predict coverage. The register records structures, not the radios mounted on them. Our coverage figures are geometric estimates from height alone and are labelled as such wherever they appear — see the methodology page for exactly how each number is derived.
Independence
Pylon Plans is an independent project. It is not affiliated with, endorsed by, or operated by the FCC, NREL, the US Census Bureau, or any wireless carrier or charging network.
The data comes from federal sources that are in the public domain. We do not accept payment to add, remove or alter a listing. Where the site is wrong, the source record is right — every page carries the registration number so you can check it against the FCC directly.