The Campaign Registry along with several mobile operators have enforced registration with 10DLC starting February 4 so February 3 would have been the last day to send unregistered traffic through SMS.
We've been alerting our customers through different means about this change in the industry regulation since November 2023 through different means including emails and portal banners.
This was not a decision taken by Telnyx, this is an industry wide change that has taken effect since February 4th.
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How can you register your traffic?
What does it cost to register?
Please read article about Fees and Charges.
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If you still have questions about 10DLC check into our Frequently Asked Questions article which you can find here.