10DLC

10DLC, explained

10DLC stands for 10-digit long code. It is the framework US carriers use for application-to-person business messaging sent from ordinary 10-digit local numbers. Businesses register their brand and each messaging campaign, describing what they send, such as account notifications or verification codes, through an industry registry before carriers allow normal throughput. Unregistered traffic from 10-digit numbers can be heavily filtered or blocked, and registered senders are given throughput limits based on their vetting. The system was introduced to reduce spam and scam texts while giving legitimate businesses a reliable, lower-cost alternative to short codes. As a consumer, you never register anything yourself. 10DLC matters to you mainly because it shapes where codes come from and why they sometimes fail: if a company's registration is incomplete or its messages trip carrier filters, codes can be delayed or never arrive. In that case, waiting and requesting a new code a little later, or trying the service's voice or email option, is usually the only fix.

Verification code not received →