Changelog

A dated record of data refreshes, corrections, and methodology changes on PlainBroadband. We list only real, verifiable changes. See our corrections process if a figure looks wrong, or methodology for how the FCC Form 477 archive is compiled.

Accountability

Public /corrections pathway and identity CiteThis blocks

Added a public /corrections page, a dated /changelog, and Cite this page blocks on identity and legal pages so readers have a stable citation string and a clear path to report data issues.

Crawl freshness

Honest per-route sitemap lastmod

Static and related sitemap entries now stamp lastmod from git or FCC broadband data vintage per page instead of a single portal-wide fingerprint (commit e5f1cb2).

Crawl hygiene

Soft-404 hub routes become real 404s

Unknown provider, state, and technology hubs now return HTTP 404 with noindex instead of soft-redirecting into a generic not-found page (commit c7646e3).

Download the Form 477 state landscape extract cited on this page: plainbroadband-form477-state-landscape.csv (FCC public records · public domain).