In March 2020, the FCC required all originating and terminating voice service providers to implement
STIR/SHAKEN in the
Internet Protocol portions of their networks by June 2021. The FCC also set rules to designate and oversee one neutral, private-led consortium to conduct robocall traceback and set neutrality, competence, and best-practice requirements. In July 2020, they selected
USTelecom's Industry Traceback Group as the robocall traceback consortium. In September 2020, the FCC required voice and intermediate providers to deploy
STIR/SHAKEN and establishing extension/exemption and certification processes with robocall mitigation and traceback obligations for noncompliant traffic. In December 2020, the FCC required providers to better police their networks against illegal calls, expanded its existing call blocking safe harbor to cover network-based blocking of certain calls, and adopted transparency and redress requirements. In June 2021, the FCC established an online portal and formal intake mechanism so they can receive higher-quality, faster intelligence from companies and organizations that observe large-scale robocall or spoofing activity. In May 2022, the FCC adopted the Gateway Provider Order that required gateway carriers, which are the point of entry for foreign calls into the US, to implement STIR/SHAKEN to stop illegal robocalls that originate overseas. On 16 March 2023, the FCC enhanced and expanded provider obligations to implement the STIR/SHAKEN caller ID authentication framework. In May 2023, the FCC extended the 24-hour traceback requirement to cover all voice service providers and expanded traffic blocking requirements. In September 2023, the FCC strengthened requirements for
Voice over IP (VoIP) providers to obtain direct access to telephone numbers. In February 2025, the FCC broadened the use of do-not-originate lists to block calls highly likely to be illegal. ==Legislative history==