This section explains how we build the FCC provider table above for Westbrook. It is methodology—not a coverage map for the whole city and not a substitute for checking your street address in the comparison tool.
We take one sample coordinate per city from our dataset (the point we store in cities.json, usually a centroid or chosen coordinate—not an address you enter on this page). We query the FCC National Broadband Map API for residential provider filings at that latitude and longitude, then store the rows in fcc-broadband-by-city.json for this page. Each row is a brand + technology + reported max speeds; multiple rows per brand are normal (for example separate cable and fiber filings).
Filings describe what providers report at that point. They are not retail prices, promotional bundles, percent of homes served, or a guarantee that service can be installed at your driveway.
FCC data is provider-reported and may lag new construction, while shopping-tool results can vary by address, promotion, and provider eligibility. We use FCC data for technology and availability context, not final pricing.
Internet providers submit updated broadband availability to the FCC on a semiannual schedule—filing deadlines are typically March 1 and September 1 (or the next business day). Even after the FCC publishes a new dataset, filings can trail fiber overbuilds, new subdivisions, and retired copper plant by months.