The Campaign Registry (TCR) is the single source registry vendor that validates businesses & their messaging campaigns to protect mobile users from scammers and reduce the risk of SPAM.

TCR's website states that TCR is "the information hub that allows you to register 10DLC messaging campaigns" and that their mission is "to provide a simplified, fair, and unbiased service by working with carriers, messaging companies, and industry partners to establish common standards for A2P 10DLC messaging".