T-Mobile and Verizon have implemented the FCC’s anti-spoofing system

T-Mobile and Verizon have implemented the FCC’s anti-spoofing system


Photo by Chris Welch / The Verge

T-Mobile announced on Wednesday that it is fully compliant with the FCC’s new anti-spoofing protocol, telling the FCC that its now certifying that calls from its network are protected against impersonation by scam callers using the STIR/SHAKEN protocol.

Verizon also announced that it’s verifying that the number that shows up on your caller ID is actually the number that’s calling you, using the same STIR/SHAKEN protocol. The two major carriers announcing their progress on the same day isn’t a coincidence — Wednesday, June 30th, is the deadline the FCC set for major carriers to implement STIR/SHAKEN.

The protocol, with its James Bond-themed name, works to…

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