10DLC throughput is determined by the carriers, based on a Brand Vetting Score as well as the type of campaign, not on the amount of numbers/10DLCs associated with a campaign.
The tables below explain how AT&T and T-Mobile define each message tier and map Brand vetting scores to throughput levels. As you will notice, throughput levels on T-Mobile are measured on a Brand level basis and have daily allotments. AT&T's throughput levels are based on message class, Brand vetting score, and in some cases by 10DLC number and the throughput is measured on a TPM (transactions per minute) basis.
Note: Verizon is still working on defining its process.
Carriers require a ‘special business review’ request; in case a brand is not satisfied with the defined TPM or message daily quota allotment. T-Mobile charges $5,000 USD to submit a ‘special business review’ request specifically to increase your daily volume. This fee is non-refundable but is currently waived.
Note: Russell 3000 enterprises will be placed in the highest tiers available.
Visit the Sinch 10DLC Product Page to learn more.
