A2P 10DLC SMS Setup: What It Is and How to Register
A2P 10DLC stands for "Application-to-Person 10-Digit Long Code" — the framework US carriers use to allow businesses to send text messages from a normal 10-digit phone number. If you run a league and want to text your players, this is the registration that makes those texts actually get delivered instead of silently blocked.
It sounds like red tape, and the details are, but the reason it exists is simple: carriers want to know who's sending business texts and stop spam. Registered senders get reliable delivery and higher throughput; unregistered ones get filtered.
What registration involves
There are two pieces. First, a Brand — your organization's legal name, address, and EIN, so carriers know who you are. Second, a Campaign — a description of what you'll text about (e.g. "league schedule updates and registration reminders") with sample messages and your opt-in language.
Once both are approved, your phone number is linked to the campaign and can send business texts at proper throughput. The whole thing runs through a messaging provider like Twilio; OK Nyla handles the plumbing so you're not wiring it up yourself.
Cost, timeline, and why it matters
Costs are modest: a one-time brand registration fee, a small monthly campaign fee, and a one-time vetting charge in the range of a few dollars to a couple dozen dollars total, depending on your provider and volume tier. Approval typically takes anywhere from a day to a couple of weeks depending on how fast the brand vetting clears.
Skipping it isn't really an option anymore. Since carriers began enforcing 10DLC, unregistered business texts to US numbers are heavily filtered or blocked outright — so a league that isn't registered will see "sent" messages that never arrive. Getting registered is what makes SMS a reliable channel for game-day updates and registration drips.
Frequently asked questions
What does A2P 10DLC mean?
Application-to-Person messaging over a 10-Digit Long Code — the US carrier system that lets businesses send texts from a normal phone number once they've registered a brand and campaign.
Do I really need it to text my league?
Yes, for reliable delivery. US carriers filter or block unregistered business texts, so an unregistered league will see messages marked sent that never actually arrive.
What information do I need to register?
Your organization's legal name, address, and EIN for the brand, plus a description of what you'll text about, sample messages, and your opt-in language for the campaign.
How much does A2P 10DLC cost?
Generally a one-time brand fee, a small monthly campaign fee, and a one-time vetting charge — typically a few dollars to a couple dozen dollars in total, depending on provider and volume tier.
How long does approval take?
Usually anywhere from about a day to a couple of weeks, depending mostly on how quickly brand vetting clears.
Does OK Nyla handle the 10DLC registration for me?
Yes. OK Nyla manages the brand, campaign, and number registration through the messaging provider so you don't have to wire it up yourself before sending broadcasts or drips.
What happens if I send business texts without registering?
They get heavily filtered or blocked. You'll often see them reported as sent while recipients never receive them, which is worse than not sending at all.
Want this running for your league? We're onboarding a small number of operators.
Talk to us