Knowledge
Each source has a page with its publisher, update schedule, coverage, known limits, and request fields. Coverage tells you where a source is available, not which fields a property will return. You can get the same details as JSON at /api/knowledge/data-sources.
Last verified . That is when this list was last rebuilt from the ParcelOps source registry, not when each publisher last refreshed its own data.
Which internet providers reported fixed service at a United States coordinate and over which technology, as reported in the June 2021 filing round rather than current buildout.
Point and small-area screening against official Rural Development program maps.
