TFN Verification Compliance Guidance

Sabaah_A — Wed, 08 Apr 2026 09:46:36 GMT

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.

Business Information:

Business name, address and contact info should correspond to the company who will be responsible for the content of the message.
- The business name should be the same name that is in the production message content, such as the confirmation message and HELP/STOP response messages and other production message content.

Is the business legitimate?
- Does the business have a physical office address (not a resident's home address)?
- Is the business registered in their state or country's database?
  - You can check a business registration status found in 10DLC & Toll Free Number Brand Identity Resources for reference.
  - You can search a business in Better Business Bureau to see if the business is accredited in North America.

Does the business have a business registration number (BRN)?
- BRN is crucial because it provides legal identity, ensures tax/regulatory compliance and builds credibility acting as the government's and intuition's key to verifying your business's existence and legitimacy. It separates your personal and business liability, protects the business name, and is necessary for official filings and transactions.
  - What is Business Registration Number for Toll-Free Sender Verification?

Is the business a sole proprietorship or partnership?
- Sole proprietorships or partnerships should use DBAs ("doing business as") if they want to designate the company name as something other than the last names of the company’s owners.
  - Example: "Summer Sprinkler Systems Inc." dba "John's Plowing Specialists"

Is all required information for the end business (not ISV/Reseller) provided?
- What information is required for Toll-Free sender verification?

Is the business considered an ISV (Independent Software Vendor) or Reseller?
- ISV/Reseller should NOT provide their own business info. for Toll-Free sender verification. TFN Verification is for the end business.
  - What business contact information should I provide for Toll-Free sender verification?

Is the business website the URL of the end business/content creator (not ISV/Reseller)
- Is the website accessible to the public and displaying the content on the business website?

Expected Message Volume per Month:

Is there an estimated amount provided on how many messages the end-business intend to send every month?

Use Case Summary:

Clear, understandable program description, does it match the supplied message flow?
- Explanation on exactly what service the program is providing to its customers and the purpose of the brand's messages (i.e. appointment reminders, OTP alerts, etc.).
- The more descriptive the better it is to prevent push back and processing delays with verification.
  - What are some use cases for a TFN?

Multiple TFNs listed?
- Does the use case summary provide an explanation on why the brand needs more than 5 numbers?
- Typical business cases for multiple TFNs include multiple store locations, contact centers, regional coverage or testing environments for the various stages of their development cycle (Dev Test, QA, UAT, and Pilot).
- Verification supports up to 5 toll-free numbers for a single entity without needing to provide an explanation.
  - How many Toll-Free numbers can I submit for verification?

Testing/Internal Employee Use Cases:

Must be clear that the messages will be for testing or for the end-business's internal employees only.
- Example statements:
  - “Internal SMS/MMS testing only"
  - "Internal testing only – no production traffic"
  - "Text messages will only be sent to (Business Name)'s internal employees and no production traffic will be sent out to the public"

Ineligible Use Cases:

Not all uses cases are allowed for business messaging. Deceptive, fraudulent, unwanted, or illicit content is not allowed.
- What content is not allowed to be sent from a Toll-Free number?

Confirmation or Welcome Message:

Confirmation text should include the name of your business, message frequency disclosure (if sending recurring messages), message and data rates may apply, help and opt-out instructions.
- Example: Welcome to {Business Name}. Msg freq. varies. Msg & Data rates may apply. Reply STOP to end or HELP for help.

HELP Message:

A business must respond to messages containing the HELP keyword with the program name and further information about how to contact the business.
- Example: {Business Name}: {Description}. Help at {Email} or {Phone Number}. Msg&Data rates may apply. {Message frequency}. Text STOP to cancel.

Content Messages:

Ensure the Program (brand) name is included in every message.
Do not include public URL shorteners (like bit.ly links) in message content
- What are some of the best practices when it applies to Toll-Free Messaging?

Opt-In Description ("Call to Action"):

The opt-in description should clearly describe how the business obtains the end user’s phone number in order to send a text message.
The opt-in description must be specific – not “through the website”, or “over the phone”.
Provide a link to, image of, or scanned copy of opt-in mechanism.
- What opt-in documentation is required for Toll-Free sender verification?
Opt-in consent must be specific to the end business sending the message. Ensure the business name or logo is clearly visible in the example. Lead generation is not permitted. End users can only grant one-to-one consent to a particular message sender individually. A business cannot share opt-in consent with other entities.
Marketing/Promotional Use Cases
- For marketing use cases, it’s important that users have opted-in to receive marketing content via express written consent (ex. checkbox on online form).

OTP/2FA Use Cases
- For One-Time-Passcode (OTP) and Two Factor Authentication (2FA) use cases, it’s important that users have opted-in to receive OTP/2FA content via informed consent in which the end user’s phone number is obtained/the end user is informed they will be receiving a text message at the phone number they provide.

Terms and Conditions/Privacy Policy:

It is important to review terms and conditions documents to ensure all applicable messaging terms and conditions (e.g., how to opt-out, customer care contact information, and any applicable privacy policy) are covered.
It should be clear from privacy policy documents that the end user’s personal info will not be shared or sold to third parties for the purpose of marketing, especially if found on the business's website within their global privacy policy page.
- Example statement for inclusion in privacy policy: “No mobile information will be shared with third parties/affiliates for marketing/promotional purposes. All the above categories exclude text messaging originator opt-in data and consent; this information will not be shared with any third parties."

Reference article - CTIA Messaging Principles and Best Practices.

Learn more about Toll-Free Numbers from Sinch.

article TFN Verification Compliance Guidance in Toll-Free Numbers (TFN)