If you send text messages to customers from a regular 10-digit phone number in the US, you need 10DLC registration. Without it, carriers filter or block your messages, and your campaigns quietly die before they start. The process looks bureaucratic at first glance, but it follows a fixed sequence, and small businesses get through it every day.
Quick note: this guide is general information, not legal advice. Messaging rules change, and your situation may have specifics worth running past a qualified attorney.
What 10DLC Registration Actually Is
10DLC stands for 10-digit long code, which is just the standard 10-digit phone number businesses text from. Registration means telling the mobile carriers, through a central body called The Campaign Registry (TCR), who you are and what kind of messages you plan to send.
Think of it as getting a license to text. You register your business identity once (your “brand”), then register each messaging use case (your “campaigns”), and carriers use that information to decide your messages are legitimate. Registered traffic gets better deliverability and higher throughput than unregistered traffic, which carriers now filter aggressively.
Before You Start: Gather Your Documents
Registration goes much faster if you collect everything first. You will need:
- Legal business name exactly as it appears on official records
- Tax ID (EIN) for most business types; sole proprietors without an EIN have a separate, more limited path
- Business address and contact details
- Business type (LLC, corporation, sole proprietorship, nonprofit, and so on)
- Website URL for your business
- Privacy policy and terms pages that mention SMS, including how people opt in and how they opt out
- Sample messages showing exactly what you plan to send
- A description of your opt-in flow, meaning how people agree to receive your texts
The privacy policy and opt-in proof are where most small businesses stumble. Carriers want to see a real opt-in mechanism, like a web form with clear SMS consent language, a keyword people text to join, or a point-of-sale signup. A screenshot or URL of that opt-in point, plus confirmation that your first message includes opt-out instructions (“Reply STOP to unsubscribe”), covers what reviewers look for.
Step 1: Choose Your Campaign Service Provider
Your Campaign Service Provider (CSP) is the platform that submits your registration to TCR. In practice, this is the SMS platform you already use or plan to use for sending, since most providers have 10DLC registration built into their dashboards under compliance or messaging settings.
The required information is the same no matter which CSP you pick, but the quality of guidance varies. If you are choosing a platform partly for this reason, favor one that reviews your submission before it goes to TCR. A pre-check catches the errors that cause rejections.
Step 2: Register Your Brand
Brand registration is a one-time step where you submit your business identity: legal name, address, EIN, business type, and website. Your CSP sends this to TCR, which verifies the business against public records.
This step typically resolves within a few business days. You pay a one-time brand registration fee at this stage. Fees change over time, so confirm the current amount with your CSP rather than trusting a figure from an old blog post.
Sole proprietors and very small senders should know there is a streamlined path with lower throughput limits. If you only send a modest volume of messages, it may be all you need, and it involves less paperwork.
Step 3: Register Your Campaigns
Once your brand is approved, you register each messaging campaign. A campaign is one use case: marketing promotions, appointment reminders, order notifications, customer care, two-factor authentication, and so on. If you send both appointment reminders and promotional texts, those are two campaigns.
For each campaign you provide:
- The use case selected from TCR’s standard list
- A campaign description explaining what the messages are about
- Sample messages that accurately reflect what you will actually send
- Your opt-in flow and opt-out handling
- Links to your privacy policy and terms
Standard use cases are often approved within minutes or hours. Special use cases, things like political messaging, sweepstakes, or certain financial services, face extra vetting and can take weeks. Choose the use case that honestly matches your content; mismatching to get faster approval backfires when messages get filtered later.
If your campaign gets rejected, do not just resubmit the same thing. Read the rejection reason carefully. The most common ones are vague sample messages, missing opt-in proof, and privacy policies that never mention SMS. Our guide to 10DLC campaign rejection reasons walks through the usual culprits and how to fix each one, and the sample campaign descriptions page shows what good submissions look like.
Step 4: Get Vetted and Receive Your Trust Score
TCR and the carriers review your brand and campaigns and assign a trust score, which determines your messaging throughput limits. Higher scores mean you can send more messages per day per carrier. The score reflects how verifiable and established your business looks: matching public records, a real website, and clear opt-in practices all help.
You do not need to obsess over the score as a small business. Most local and small-scale senders get throughput that comfortably covers their volume. The score matters most if you plan to send high volumes or grow quickly.
Step 5: Assign Numbers to Your Campaigns
After approval, you link your 10DLC phone numbers to your approved campaigns. Each number belongs to exactly one campaign, so plan your number strategy around your use cases. If marketing and transactional messages run on separate campaigns, they need separate numbers.
Monthly per-campaign and per-number fees apply from this point on. Factor them into your messaging budget alongside per-message costs.
Timelines: How Long Does It All Take?
For a straightforward small business with clean paperwork, the whole process often completes in a few days: brand verification plus campaign approval for standard use cases. Special use cases, incomplete submissions, and mismatches between your documents and public records stretch the timeline. The single biggest accelerator is submitting complete, accurate information the first time.
Staying Compliant After Approval
Registration is not a one-and-done shield. Carriers monitor registered traffic, and campaigns can be suspended for spam complaints, ignored opt-outs, or content drift away from what was approved. Keep your opt-in records, honor STOP requests promptly, and update your registration if your use case changes. Run through the SMS campaign checklist before each major send to catch compliance gaps early.
Frequently Asked Questions
Do I really need 10DLC registration for a small business?
Yes. Any business sending application-to-person texts from a US 10-digit number needs to register, regardless of size. Unregistered traffic is filtered or blocked by carriers.
What is the difference between brand and campaign registration?
Brand registration verifies your business identity once. Campaign registration describes each messaging use case and is done per use case. You need the brand approved before you can register campaigns.
Can a sole proprietor without an EIN register for 10DLC?
There is a path for sole proprietors with limited throughput, designed for very small senders. It has restrictions compared to full brand registration, so check with your CSP whether it fits your volume.
How long does 10DLC approval take?
Standard campaigns with complete documentation are often approved within hours to a few days. Special use cases requiring extra vetting can take weeks. Rejections for incomplete information reset your timeline.
What happens if I send texts without registering?
Carriers filter unregistered 10DLC traffic aggressively, so many of your messages will never arrive. You also risk carrier fines and campaign suspension. Registration is far cheaper than the alternative.