Toll-Free Verified Sender Form

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Sinch Toll-Free Sender Verification ensures better deliverability for messages from your toll-free number (TFN). TFNs that are not verified are subject to rate limits and blocking towards US and Canadian carriers.

You can find a link to the Toll-Free Verified Sender form in the Sinch customer dashboard on your toll-free number details page.

The VSF link can be found on your toll-free number details page in the Sinch customer dashboard

While using the link in the customer dashboard is the preferred method to submit a toll-free verification request, you can also verify your TFN by completing the form here: Toll-Free Verified Sender Form.

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Unverified toll-free numbers (TFNs) and Pending Verification toll-free numbers (TFNs) are subject to industry-wide message blocking. Unverified toll-free numbers are TFNs that have not completed the toll-free sender verification process. Pending Verification toll-free numbers are TFNs where a verification request has been submitted, but the request is pending review and approval. 

Note: In the past it was possible to send messages from an Unverified TFN or Pending Verification TFN. However, as a result of industry-wide changes, all toll-free numbers, regardless of the use case, must be Verified to originate traffic.

UNVERIFIED toll-free numbers (TFNs) are subject to industry-wide message blocking, effective November 8, 2023.

PENDING VERIFICATION toll-free numbers (TFNs) are subject to industry-wide message blocking, effective January 31, 2024.

All toll-free numbers (TFNs) must be in a VERIFIED state in order to originate traffic.

Unverified TFNs and TFNs pending verification will be blocked with Sinch error code 64 “Blocked due to exceeded quota”. Please see Toll-Free Delivery Report Errors for a full list of Sinch Toll-Free error codes.