A2P 10DLC
Definition
A2P 10DLC stands for application-to-person messaging over ten-digit long codes. It is the US carrier framework that expects a business to register a brand and a campaign before sending automated text messages from a standard local number.
Last reviewed By the Cashcade editorial team1 source
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What A2P 10DLC means
Messaging providers such as Twilio document that unregistered traffic can incur extra carrier fees and filtering. Registration describes who you are and what you send, and it takes time.[1]
Why it matters
If you add booking confirmations or reminders to a service you build for a client, plan registration into the timeline and keep an opt-out in every message. Consent comes first.[1]
Sources
Every number on this page comes from a source below or is labelled an estimate. Each page was read on the date shown.
- [1]A2P 10DLC (opens in a new tab)
Twilio Docs · Official · Read October 15, 2026
Brand and campaign registration for text messages
How this page was made
Researched by the Cashcade team from the sources listed above, with drafting aids used for structure. Spotted an error? Write to hello@playcashcade.com and a correction is published with its date.