What is 10DLC? A complete guide for US businesses

10DLC, or 10-Digit Long Code, is a messaging standard introduced by US mobile carriers to improve business SMS communication by addressing issues of noise, unpredictability, and abuse, such as spoofed OTPs and anonymous marketing messages. It serves as a digital "license plate" for business texts, requiring companies to register their brand and campaigns to ensure compliance, reduce spam, and prioritize legitimate traffic. This registration involves two parts: brand registration, which verifies the business identity, and campaign registration, which outlines the message types and purposes. Compliance with 10DLC is not optional and is enforced by major carriers like AT&T, T-Mobile, and Verizon, each with their own rules and penalties for non-compliance, including throttled delivery, blocked traffic, and financial penalties. The Campaign Registry (TCR) acts as a centralized system for registration, ensuring traffic is whitelisted and treated as compliant. The future of 10DLC involves stricter carrier enforcement and a shift in how businesses approach SMS, emphasizing transparency, legitimacy, and a trust-based communication channel, ultimately benefiting both users and businesses by reducing spam and improving message deliverability and reliability.