Security & Compliance
Ref: CTIA Messaging Principles / The Campaign Registry (TCR)
10DLC
10-Digit Long Code - North American Messaging Standard
Direct Telecom Definition • Carrier Industry Standard
The sanctioned North American carrier framework for high-throughput Application-to-Person (A2P) messaging over standard 10-digit telephone numbers.
Key Takeaways & Executive Summary
- Sanctioned A2P messaging standard for 10-digit local telephone numbers in the US and Canada.
- Requires Brand and Campaign vetting through The Campaign Registry (TCR).
- Trust Scores determine carrier throughput (MPS) and eliminate P2P spam filtering penalties.
Technical Definition & Carrier Engineering Standards
10DLC (10-Digit Long Code) is the telecommunications industry standard introduced by North American Tier-1 mobile network operators (AT&T, Verizon, T-Mobile) and overseen by CTIA. It governs Application-to-Person (A2P) messaging sent across standard 10-digit local phone numbers. Senders must register their Brand and specific messaging Campaigns with The Campaign Registry (TCR) to receive assigned Trust Scores, which dictate allowed messages-per-second (MPS) throughput and lower carrier surcharge rates.
Connected Software & Carrier Telecom Corridors
High-Volume SMS Corridors
Enterprise Dispatch Software
Frequently Asked Questions
What is 10DLC in A2P SMS?
10DLC (10-Digit Long Code) is a carrier-approved framework in North America enabling enterprises to send high-volume automated A2P SMS using standard local 10-digit phone numbers.
How does 10DLC registration work?
Enterprises register their corporate identity (Brand) and messaging use cases (Campaigns) with The Campaign Registry (TCR) to receive verified routing and high throughput allocations from US carriers.