What Is 10DLC? Everything You Need to Know
If your business sends text messages to customers in the United States, you need to know about 10DLC. It is the system that carriers now require for business texting, and understanding it is the first step toward reliable, compliant messaging.
What Does 10DLC Mean?
10DLC stands for 10-Digit Long Code. It is a standard local phone number — the familiar 10-digit format like (555) 123-4567 — that has been registered and approved to send business text messages.
Before 10DLC existed, businesses had two main choices for texting at scale: expensive short codes (those 5- or 6-digit numbers) or toll-free numbers. Local 10-digit numbers were technically only meant for person-to-person conversations.
Many businesses used those local numbers for business texting anyway, which led to spam, poor deliverability, and frustrated consumers. 10DLC was created to solve all of that by giving businesses a legitimate, affordable way to send texts from local numbers while giving carriers the ability to verify who is sending what.
Key takeaway
10DLC is not a new type of phone number. It is a registration and approval system that lets you use standard local numbers for business texting, with carrier trust and better deliverability.
Why Does 10DLC Exist?
The major US wireless carriers — T-Mobile, AT&T, and Verizon — introduced 10DLC requirements to bring order to business messaging. Here is why it matters:
- Spam reduction: By requiring businesses to register, carriers can verify who is sending messages and block bad actors more effectively.
- Consumer trust: When people receive a text from a registered business number, they can trust it is legitimate. This improves the entire ecosystem for everyone.
- Better deliverability: Registered messages get prioritized by carrier networks. Unregistered messages face heavy filtering and often get blocked entirely.
- Compliance: 10DLC provides a framework for enforcing messaging rules like opt-in consent, opt-out handling, and content standards.
In short, 10DLC exists because texting became a critical business communication channel, and it needed guardrails to keep it trustworthy and effective for everyone involved.
Who Needs 10DLC Registration?
If your business sends any kind of text message to US phone numbers using a standard 10-digit number, you almost certainly need to register. This includes:
- Appointment reminders — Doctors offices, salons, auto shops, and any service business that texts appointment confirmations or reminders.
- Marketing and promotions — Retailers, restaurants, and e-commerce businesses sending deals, coupons, or promotional messages.
- Account notifications — Banks, SaaS platforms, and service providers sending security alerts, password resets, or account updates.
- Delivery and shipping updates — Logistics companies, food delivery services, and retailers sending tracking information.
- Customer service — Any business that uses texting to communicate with customers about support issues, order status, or general inquiries.
- Internal communications — Even businesses texting their own employees for shift notifications, emergency alerts, or operational updates.
Important
10DLC applies to application-to-person (A2P) messaging. If software or an automated system is sending the text on behalf of your business, it counts as A2P, even if a human wrote the message.
How Does 10DLC Registration Work?
The 10DLC registration process has three main steps. Each step builds on the previous one:
Step 1: Brand Registration
First, you register your business (your “brand”) with The Campaign Registry (TCR). This involves providing your business name, EIN (Employer Identification Number), address, website, and contact information. The registry verifies your identity and assigns a trust score that affects your messaging throughput.
Step 2: Campaign Registration
Next, you register each messaging “campaign” — which is really just a description of how you plan to use texting. You describe your use case (like appointment reminders or marketing), provide sample messages, and explain how you collect consent from recipients. Each campaign goes through a review process.
Step 3: Number Assignment
Finally, you assign your 10-digit phone numbers to approved campaigns. Once assigned, your numbers are recognized by carriers as legitimate business numbers, and your messages flow through with the throughput your trust score allows.
Good news
This process sounds involved, but with the right guidance each step is straightforward. Our platform walks you through every field and handles the submissions for you.
Benefits of 10DLC Registration
Once you are registered, you unlock several important benefits:
- Higher throughput: Registered numbers can send significantly more messages per second than unregistered ones. Depending on your trust score, you may be able to send thousands of messages per minute.
- Better deliverability: Carriers prioritize registered traffic. Your messages are far less likely to be filtered, delayed, or silently dropped.
- Lower cost per message: Carrier surcharges for unregistered traffic are higher than for registered traffic. Registration actually saves you money on every message.
- Local presence: Unlike short codes, 10DLC numbers are local numbers that your customers recognize. This boosts open rates and response rates.
- Two-way messaging: 10DLC numbers support full two-way conversations, so customers can reply to your messages and you can respond naturally.
- Compliance peace of mind: Registration means you are operating within carrier guidelines, reducing the risk of fines, penalties, or number suspension.
What You Need to Get Started
Before you begin the registration process, make sure you have the following ready:
- EIN (Employer Identification Number): Your federal tax ID. Sole proprietors without an EIN can sometimes use their SSN, but having an EIN is strongly recommended.
- Legal business name: The name exactly as it appears on your IRS records. Mismatches between your registration and IRS records are the number one cause of delays.
- Business address: Your registered business address. P.O. Boxes may cause issues with some carriers.
- Website: A working business website. Carriers review your web presence as part of the trust scoring process.
- Use case description: A clear explanation of why you are sending text messages and what kind of messages you will send.
- Sample messages: Two or three examples of actual messages you plan to send, including opt-out language (like “Reply STOP to unsubscribe”).
- Privacy policy and terms of service: Links to your privacy policy and terms that cover SMS messaging and consent.
Pro tip
Take a few minutes to double-check that your business name and EIN match your IRS records exactly. This single step prevents the majority of registration rejections and delays.
How Long Does Registration Take?
The timeline depends on a few factors, but here is a general overview:
- Brand registration: Usually reviewed within 1-5 business days. Clean, well-known businesses with matching records are often approved fastest.
- Campaign registration: Standard use cases are typically reviewed within 3-7 business days. Special use cases (like political messaging or emergency alerts) may take longer.
- Number assignment: Once your campaign is approved, assigning numbers is nearly instant.
From start to finish, most businesses are fully registered and sending within one to two weeks. Planning ahead and having all your information ready upfront is the best way to speed things along.
The Bottom Line
10DLC is the new standard for business text messaging in the United States. It is not optional — carriers require it, and unregistered messages face serious consequences. The good news is that the registration process is straightforward, the costs are reasonable, and the benefits are substantial.
Whether you are a small business sending appointment reminders or a large enterprise running marketing campaigns, 10DLC gives you a reliable, affordable, and compliant way to reach your customers through text messaging.