I'm fairly convinced that the only way this gets fixed is if enough people complain loudly to the phone companies & cancel accounts. Verizon / AT&T / T-mobile / etc. absolutely have the power to fix this, and they're choosing instead to largely ignore it, and productize the solutions for anyone who cares enough - let the spammers pay to create the problem, and let the consumers pay for the remedy. Telcos win on both…
My understanding is that the regulation of phone services in the US is fairly prescriptive and it would be a violation of FTC rules for a phone company to just go ahead and cancel accounts without legal authorization. Or to proactively screen your calls and not deliver the ones the phone company thinks are spammy. Though presumably the phone company could also tell your phone "Hey, we think this is spam" and let you…
AT&T's lobbyists include Joan Marsh and Robert Quinn, and a few others:
Wayne Watts, Senior Executive Vice President and General Counsel, James W. Cicconi, Senior Executive Vice President—External and Legislative Affairs, Robert Quinn, Jr., Senior Vice President—Federal Regulatory, David Lawson, Senior Vice President and Assistant General Counsel, Hank Hultquist, Vice President—Federal Regulatory, Michael Paradise, Vice President—Global IP Operations and Infrastructure Services, and Gary Phillips, General Attorney and Associate General Counsel, of AT&T; and Richard Rosen and Maureen Jeffreys, of Arnold & Porter LLP.
https://ecfsapi.fcc.gov/file/60001116224.pdf
https://apps.fcc.gov/edocs_public/attachmatch/DOC-342942A1.p...
https://ecfsapi.fcc.gov/file/1011263448484/Status%20ATT%20ex...