Effective August 31, 2023, all SMS and MMS messages sent to U.S. phone numbers using 10DLC phone numbers will fail if not registered with an application-to-person (A2P) campaign.

A2P Registration Fee: $23.1525

Note: One time and monthly campaign fee is charged for both approved and failed campaigns. Make sure to delete the campaigns which are not in use. You can see the billing detail by navigating to Settings/Company Billing/Then select "See Transactions" under the green box.