Toll-free verification compliance guidance is based on the CTIA Messaging Principles and Best Practices document. By complying with the principles provided here, the toll-free sender verification process should be straightforward and your toll-free campaigns should run without issue.
Note: If your toll-free number (TFN) has significant reported end user complaints, some wireless operators may slow down or suspend your campaign or numbers to prevent unwanted messaging on the toll-free network.
Below are specific requirements you must apply to any TFN verification request. Think of this as a checklist of things you should comply with in order to keep your messaging from getting flagged as spam, and to ensure your toll-free verification request is approved in a timely manner. While it may not work 100% of the time, a thorough authenticity check can help you identify red flags early on for businesses who may intend to send spam and/or phishing text messages. All the below demonstrates the veracity of the business owners, thus strengthening their credibility and legitimacy for compliance standards within the A2P Messaging Industry.
Reference article - CTIA Messaging Principles and Best Practices
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.