An anonymous reader quotes a report from Ars Technica: The FCC in 2015 made it clear that voice service providers can offer call blocking tools to customers, but commissioners said at the time that more needed to be done about Caller ID spoofing. FCC Chairman Ajit Pai has now scheduled a preliminary vote for March 23 on new rules designed to solve the problem. "One particularly pernicious category of robocalls is spoofed robocalls -- i.e., robocalls where the caller ID is faked, hiding the caller's true identity," the proposal says. "Fraudsters bombard consumers' phones at all hours of the day with spoofed robocalls, which in some cases lure consumers into scams (e.g., when a caller claims to be collecting money owed to the Internal Revenue Service) or lead to identity theft." The proposed rules would let providers "block spoofed robocalls when the spoofed Caller ID can't possibly be valid." Providers would be able to block numbers that aren't valid under the North American Numbering Plan and block valid numbers that haven't been allocated to any phone company. They'd also be able to block valid numbers that have been allocated to a phone company but haven't been assigned to a subscriber. The proposal would also codify the FCC's previous guidance that phone companies can block calls when requested by the spoofed number's subscriber. The upcoming vote on March 23 is for a Notice of Proposed Rulemaking (NPRM), which means the rules won't take effect immediately. The FCC uses NPRMs to seek comment on proposals before issuing final rules.
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