Carrier Coverage Maps Overstate Signal Availability by Conflating Outdoor Propagation Models with Indoor Usability

Mobile carriers submit coverage maps to the FCC based on outdoor RF propagation modeling that counts an area as 'covered' if a signal theoretically reaches the exterior of a building at minimum threshold, even though the majority of phone usage occurs indoors where signals are 10-20 dB weaker. So what? Consumers purchase plans based on maps showing their home as 'covered' only to find unusable indoor service, with no grounds for contract cancellation since the carrier technically met its coverage claim. So what? The FCC's Broadband Data Collection challenge process requires consumers to submit speed test evidence to dispute coverage claims, placing the burden of proof on individual users rather than requiring carriers to validate their own maps. So what? In a documented 2025 case in Santa Cruz County, a cell tower developer claimed coverage gaps to justify a new tower while at least 20 residents testified they already had strong service and the FCC's own map confirmed coverage. So what? Overstated coverage maps distort the $12.7 billion in federal broadband subsidies allocated under BEAD, directing funds away from areas with genuinely no coverage toward areas that carriers falsely claim to already serve. So what? Rural and low-income communities that actually lack service are systematically deprioritized because carrier maps make them appear served. The structural root cause is that the FCC relies on carrier self-reported propagation models rather than empirical measurement, and the challenge process shifts the burden of proof to individual consumers who lack the technical expertise and equipment to generate the evidence the FCC requires.