10DLC registration decides whether your business texts get delivered or dropped. This site explains how brand and campaign registration works, what 10DLC compliance asks of you, and how to keep messages reaching US customers.
Independent resource · Updated for current US carrier rules
Applies to every message sent to
Plain-language answers to the questions every US sender runs into, from first filing to ongoing delivery.
How to register your business with The Campaign Registry, and why your EIN has to match your filing exactly.
What a compliant campaign looks like, how to write sample messages, and how to clear review on the first try.
Why a low trust score throttles your sends, and what actually moves your delivery rate into the high nineties.
A 10-digit long code is just an ordinary local number. It does not become a business texting channel until US carriers approve it, and that approval comes through A2P 10DLC registration. Skip it, and your messages are blocked at the network rather than quietly filtered.
Registration happens in two layers. Brand registration proves who you are. Campaign registration describes what you send. Both are mandatory, and both are checked against real rules that trip up most first-time senders. The guides on this site walk through each step in the order carriers expect.
Start with the guides, estimate your upside with the ROI calculator, or read the blog for deeper answers.
Estimate the revenue you recover when your messages stop getting filtered.
Open the ROI calculator