Required registration for business SMS messaging in the United States
A2P 10DLC (Application-to-Person 10-Digit Long Code) is the carrier-mandated registration system for business SMS messaging in the United States. All business-to-consumer SMS traffic must be associated with a registered brand and approved use case.
Registration is required by U.S. carriers. Unregistered business messaging may be blocked, filtered, or subject to carrier penalties. Registration does not guarantee approval or message delivery.
Registration is mandatory. Business texting cannot be used until registration is submitted and approved by carriers. Approval and throughput are determined by carriers, not by Connect Communications.
Carriers require registration to verify business identity and reduce spam and fraud. All business SMS traffic must be associated with a verified brand. Message campaigns must match declared use cases.
Registration may improve deliverability compared to unregistered traffic, but does not guarantee delivery or specific throughput levels. Throughput depends on carrier review and approval status.
The following information is required for registration:
The following content categories are prohibited and may result in immediate suspension:
Registration does not guarantee message delivery, approval, or specific throughput levels. Approval and throughput are determined by carrier policies and regulatory guidelines. Connect Communications cannot guarantee approval or specific throughput rates. Review times vary based on carrier processing. Carriers reserve the right to approve, reject, or modify registration submissions. Messaging services are subject to carrier review and may be suspended for non-compliance.