If you text U.S. customers from application-based 10-digit numbers, you must register a Brand and Campaign through your messaging provider so carriers will accept your traffic. This process runs through The Campaign Registry, under oversight tied to the Federal Communications Commission and the Telephone Consumer Protection Act. Before opening your provider portal, gather your IRS-matched legal business name, EIN, website, and opt-in evidence.
TL;DR:
- Sole proprietors can register without an EIN, but the lower throughput track has stricter volume caps; obtaining an EIN unlocks the standard Brand track.
- Prepare a website privacy policy mentioning mobile data collection, two branded sample texts, and consent evidence covering message type, frequency, rates, and opt out terms.
- Brand checks may finish in one business day, while carrier campaign review can take one to four weeks; assign numbers only after verification.
- Keep timestamped consent records and honor STOP replies immediately; wireless numbers on the National Do Not Call Registry require opt in for marketing texts.
Table of Contents
- What A2P 10DLC and The Campaign Registry Are
- Who Needs to Register and Common Use Cases
- Required Documents and Pre-Registration Checklist
- Step-by-Step Registration: Brand, Campaign, and Number Assignment
- Fees, Billing Commitments, and Expected Timelines
- Common Rejection Reasons and How to Fix Them
- Compliance Anchors: TCPA, FCC Rules, and the National DNC Registry
- Equinox Strategies' Approach: Secure, Scoped Registration and Documentation
- How We Help You Register and Stay Compliant
- FAQ
- Sources
What A2P 10DLC and The Campaign Registry Are
A2P 10DLC stands for application-to-person messaging on 10-digit long code numbers, the standard phone number format businesses use to text customers at scale. Carriers created this framework because standard 10-digit numbers were originally meant for person-to-person texting, and unregistered business traffic was getting flagged, filtered, or blocked outright.
The Campaign Registry sits at the center of this system as the reputation authority for A2P 10DLC. Your messaging provider, acting as a Campaign Service Provider or Connectivity Network Provider, submits your Brand and Campaign details to TCR on your behalf. TCR verifies identity data and use case information, then carriers use that record to decide how much trust to extend your traffic.
Registered senders get better deliverability, higher throughput, and fewer messages caught in spam filters. Unregistered senders face low per-number message limits and a real risk of carrier-level blocking, which can quietly kill a customer notification system or appointment reminder flow without warning.
Who Needs to Register and Common Use Cases
Nearly any business sending SMS to U.S. customers from a 10-digit number counts as A2P traffic and needs registration. This covers marketing messages, two-factor authentication codes, account notifications, customer care replies, delivery updates, and mixed-use flows that combine several of these.
Sole proprietors can register without an EIN, but they're limited to the lower-throughput Sole Proprietor track with stricter volume caps. Getting an EIN through the IRS EIN application opens the door to the standard Brand track, with higher trust scores and messaging limits. Franchises and agencies managing multiple client brands should also expect additional verification steps tied to each underlying business entity.
Required Documents and Pre-Registration Checklist
Rejections almost always trace back to mismatched or missing documentation, so assembling everything first saves time later. Pull your IRS EIN application records and confirm the exact legal name, since even a small formatting difference between "LLC" and "L.L.C." can trigger an unverified Brand status.
- Your legal business name and EIN exactly as recorded on Form SS-4, with no abbreviation mismatches.
- A physical business address; sole proprietors typically list a registered or home office address instead of a corporate one.
- A live website showing your company name, working contact information, and a privacy policy that explicitly mentions mobile data collection.
- Opt-in evidence: screenshots of your signup form, the form's HTML, or your keyword opt-in flow, including the four disclosures: message type, frequency, a rates disclaimer, and opt-out instructions.
- Two distinct sample messages that include your business name and clear opt-out language such as "Reply STOP to unsubscribe."
Pro Tip: Draft your opt-in disclosure language before you touch the portal. It's the single detail reviewers check first, and fixing it after a rejection costs you another review cycle.
Step-by-Step Registration: Brand, Campaign, and Number Assignment
Once your documentation is ready, the registration flow itself is mechanical. Follow it in order to avoid backtracking.
- Log into your messaging provider or CSP portal and find the Brand registration entry point, usually under a messaging or compliance tab.
- Enter your Brand fields: legal name, EIN, physical address, website, and a support contact. The TCR CSP user manual notes that TCR cross-references your EIN and legal name against third-party identity sources, and an unverified status here blocks Campaign creation entirely.
- Once your Brand is verified, start a Campaign. Choose the use case that most closely matches your actual messaging, write a clear campaign description, and detail your message flow from opt-in to first text.
- Upload your opt-in evidence and both sample messages, then select your connectivity partner or reseller attributes if your provider requires them.
- Review the carrier terms preview, which shows per-carrier qualification before you submit.
- Wait for a "Verified" or "Vetted_Verified" status before assigning phone numbers to the Campaign. Assigning numbers too early just means resubmitting once status changes.
If the Continue button stays disabled, it usually signals a carrier qualification issue rather than a form error. Check your provider's dashboard for a specific rejection code, correct the underlying document or disclosure, and resubmit rather than guessing at changes.
Pro Tip: Niche or higher-risk use cases, like political messaging or high-volume marketing, often trigger secondary carrier vetting. Budget extra review time rather than assuming a fast approval.
Fees, Billing Commitments, and Expected Timelines
Registration costs are modest compared to the deliverability risk of skipping it. Standard Brands typically pay a low one-time registration fee, while sole proprietors see a different fee structure tied to their track. Monthly campaign fees vary by use case, with standard campaigns generally priced higher than low-volume tracks. Many providers bill in three-month minimum commitments and list TCR fees as separate line items on your invoice.
- Brand verification is often the fastest step, frequently completing within one business day once identity data matches.
- Campaign review takes longer and is performed downstream by carriers and CSPs rather than by TCR itself, so timing depends on their queues.
The Campaign Registry notes that campaign approval timelines can range from one to four weeks depending on whether secondary carrier vetting is triggered. Plan launch dates with that range in mind rather than assuming same-week approval.
Common Rejection Reasons and How to Fix Them
Most rejections fall into a handful of predictable categories, and each has a direct fix.
- Mismatched legal name or EIN: cross-check your IRS EIN application record and correct formatting differences like "LLC" versus "L.L.C." before resubmitting.
- Weak opt-in evidence: pre-checked consent boxes, bundled consent with unrelated terms, or missing disclosures all trigger rejection. Document a clean, standalone opt-in flow and resubmit screenshots showing it.
- Website gaps: a missing privacy policy or one that never mentions mobile data collection is a frequent cause. Add explicit language stating that mobile numbers collected may be used for SMS communications.
- Sample messages that don't match your declared use case or that omit opt-out language get flagged quickly. Replace them with messages that mirror exactly what you plan to send.
Read your provider's specific rejection code before resubmitting. Most codes map to one of these categories, and fixing the root cause rather than resubmitting unchanged content speeds up approval on the second pass.
Compliance Anchors: TCPA, FCC Rules, and the National DNC Registry
Registration approval doesn't replace your underlying legal obligations. The FCC's rules on prior express written consent require that consent be specific to the sender, clearly disclosed, and revocable at any time, with revocation honored promptly once received.
The National Do Not Call Registry's wireless protections also extend to text messages, limiting marketing texts to numbers that haven't opted in.
- Capture and store consent records with timestamps, not just a checkbox state.
- Disclose message type, frequency, rates language, and opt-out instructions in every opt-in flow.
- Always honor STOP replies immediately and permanently for that number.
The FCC's order includes a waiver extending to January 31, 2027 on certain revocation-scope requirements, so businesses with complex consent flows should consult counsel on how it applies to their specific messaging programs.
Equinox Strategies' Approach: Secure, Scoped Registration and Documentation
We treat A2P 10DLC registration as a documentation problem first and a portal task second. We run a discovery phase to confirm your legal name and EIN against IRS records, review your website's privacy language, and audit your existing opt-in capture before anything gets submitted.
From there, least-privilege access controls are applied to any system touched, a data map is written showing exactly where consent records and customer data live, and a rollback plan is built before deployment. Post-approval, campaign status and carrier feedback are monitored so a secondary vetting flag doesn't sit unnoticed. Catching an EIN mismatch or a thin opt-in flow before submission keeps a registration out of the resubmission queue.
How We Help You Register and Stay Compliant
A2P 10DLC registration is handled as part of a broader automation buildout: documentation prep, portal submission, opt-in flow redesign, and monitoring after approval that can integrate with automated follow-up emails to maximize engagement. This results in fewer rejected campaigns, consent records that can be produced if a carrier asks, and messaging that plugs directly into existing follow-up and scheduling workflows instead of living in a separate silo.
If your team is texting customers and hasn't registered, or you're getting rejected and can't pin down why, reach out through our services page and we'll scope the work with you.
FAQ
Is registration required for A2P 10DLC?
Yes. Any U.S. business sending application-to-person text messages from a 10-digit number needs a registered Brand and Campaign, or carriers can block or heavily throttle that traffic.
How long does it take to get approved for A2P 10DLC campaign registration?
Brand verification often completes within one business day once your identity details match official records. Campaign review, handled by carriers and CSPs rather than The Campaign Registry itself, typically takes one to four weeks depending on whether secondary vetting applies to your use case.
How much does it cost to register for A2P 10DLC?
Costs include a one-time Brand registration fee plus a recurring monthly campaign fee that varies by your selected use case, with many providers billing in three-month minimum commitments. Your messaging provider can confirm the exact current fees tied to your specific Brand type and campaign tier.
How do I complete A2P 10DLC registration?
Register your Brand first with your legal name, EIN, address, and website, then create a Campaign by selecting your closest use case and uploading sample messages and opt-in evidence. Wait for a verified status before assigning phone numbers, since numbers tied to an unverified Campaign won't carry carrier trust.
Sources
- DA-26-12A1.txt — FCC
- TCR Intro (2026) — The Campaign Registry
- Apply for an Employer Identification Number (EIN) — IRS