Advanced Methods To Target and Eliminate Unlawful Robocalls, Call Authentication Trust Anchor

In this document, the Federal Communications Commission (Commission or FCC) proposes and seeks comment on a number of actions aimed protecting consumers from illegal calls. The document proposes and seeks comment on a number of steps to protect American consumers from all illegal calls, whether they originate domestically or abroad. Specifically, this document proposes to require domestic intermediate providers that are not gateway providers in the call path to apply STIR/SHAKEN caller ID authentication to calls. It also seeks comment on a number of robocall mitigation requirements, enhancements to enforcement, clarifications on certain aspects of STIR/SHAKEN, and limitations on the use of U.S. North American Numbering Plan (NANP) numbers for foreign-originated calls and indirect number access.