Visible is owned by Verizon and runs over Verizon's network.
The map displays predicted outdoor signal quality. Indoor signal, congestion, and roaming coverage aren't mapped. Each can matter in practice.
Cell coverage data for Visible comes primarily from the October 2026 release of the FCC's Broadband Data Collection program (representing networks as of June 2026), supplemented with real-world measurements from large crowdsourcing projects.