Consumer Reports, National Consumer Law Center on behalf of its low-income clients, Consumer Action, Consumer Federation of America, National Association of Consumer Advocates, and Public Citizen thank the Federal Communications Commission (“FCC” or “Commission”) for soliciting input for its upcoming report on robocalls. This report is timely, as the FCC has taken welcome steps in recent years to better protect consumers from unwanted calls, including by clarifying that voice service providers can offer advanced call blocking tools on an opt-out basis. Congress also has been active on this issue, and has recently enacted legislation that requires voice service providers to implement caller ID authentication technology and directs the FCC to initiate a rulemaking to help prevent consumers from receiving spoofed calls. To ensure that consumers actually have effective protections against unwanted robocalls, it is crucial that the FCC thoroughly evaluate implementation and the efficacy of these measures taken, and take steps to remedy any gaps in protection.