from ars technica
The Federal Communications Commission is asking phone carriers for help blocking robocalls made from outside the US and is implementing a congressionally mandated system to trace the origin of illegal robocalls.
The FCC yesterday sent letters to seven US-based voice providers “that accept foreign call traffic and terminate it to US consumers.” Tracebacks conducted by the USTelecom trade group and the FCC found that each of these companies’ services is “being used as a gateway into the United States for many apparently illegal robocalls that originate overseas,” the FCC’s letters to the companies say.
The FCC letters were sent to All Access Telecom, Globex, Piratel, Talkie, Telcast, ThinQ, and Third Base. These are mainly wholesale voice providers rather than companies that sell phone service directly to home or business customers. For example, All Access Telecom says it provides “wholesale VoIP termination services” to phone providers.