T-Mobile will start charging the Grey Route Noncompliance fee starting January 1, 2022. This pass-through fee applies if you attempt to route A2P messages as P2P messages after 10DLC is enabled, and is $10 per 10DLC message.


As a reminder, the following T-Mobile fees are now effective as of October 1:


NNID Registration - $2,000
Text Enablement - $10,000
10-Digit Long Code Messaging Program Evasion - $1,000
Content Violation - $10,000