SMS Campaign Registry Documentation
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Any text message transmitted via our platforms, regardless of use case or phone number type (e.g., long code, short code, or toll-free) will be considered by The Campaign Registry (TCR) to be an Application-to-Person (A2P) messaging.
Per the rules of The Campaign Registry (TCR), Application-to-Person (A2P) SMS and MMS message traffic may not be delivered to US-based end user mobile devices unless the message traffic is properly registered as a campaign.
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