Short answer: Brand vetting is usually minutes to a few business days. Campaign approval usually takes a few business days to about three weeks, sometimes longer. Standard low-volume marketing Campaigns are faster; anything in a "special" category (healthcare, financial, political, high-volume) is slower and more likely to be reviewed by a human.
Approval times are set by The Campaign Registry (TCR) and the individual US carriers, not by the software you use to send. Your provider can only submit the paperwork correctly and follow up if it stalls.
Last reviewed: 2026.
What A2P 10DLC actually is
A2P 10DLC ("Application-to-Person messaging on 10-digit long codes") is the US carrier program that lets business software send SMS at scale over regular local phone numbers. It replaced the free-for-all where anyone could point a Twilio number at any phone and hit send.
To use it, you register three things:
- Business Profile / Brand — legal name, EIN, address, website.
- Campaign — the specific use case (customer notifications, marketing, 2FA, etc.), with sample messages and opt-in language.
- Phone number(s) — the actual 10DLC numbers assigned to that Campaign.
Only after all three are approved does your traffic get full deliverability across AT&T, Verizon, T-Mobile, and US Cellular.
Realistic timelines in 2026
Timelines shift as carriers tighten or loosen review. As of late 2026, based on Twilio's public guidance and current industry experience:
Brand vetting
- Standard Brand (auto-verified against Dun & Bradstreet / other data): minutes.
- Manual review (mismatched or new business): 1–5 business days.
- Sole proprietor Brand: typically 1–3 business days with additional identity verification.
Campaign approval
- Standard low-volume mixed use case: 1–5 business days.
- Standard higher-volume marketing: 3–10 business days.
- Special use cases (agents/franchises, K-12, higher education): 1–3 weeks.
- "Special" restricted use cases (healthcare, gambling, political, financial): 2–4+ weeks and often require additional documentation.
Phone number assignment
Once the Campaign is approved, assigning numbers to it is fast — usually within hours.
What actually determines your timeline
Most delays come from a small number of causes.
1. Missing or mismatched EIN / legal name
The single most common rejection. Your Brand's legal business name and EIN must match exactly what the IRS has on file. "John's Plumbing LLC" and "Johns Plumbing, LLC" are different names to the reviewer.
2. Website doesn't match the business
Reviewers check that the domain in your Brand submission looks like your business. A hero page that mentions the business by name and lists a contact number matching your submission goes a long way. A parked domain or "coming soon" page gets rejected.
3. Sample messages don't match the Campaign type
If you register a "customer notifications" Campaign but your sample message is a marketing blast with a discount code, that's a mismatch and it gets bounced back.
4. Missing opt-in description
You have to describe how customers opt in ("Customers provide their number on our booking form and check a box agreeing to receive appointment and review request texts"). Missing or vague opt-in language is a common rejection.
5. Missing STOP handling / privacy policy
Your website should include a public privacy policy and a page describing how you handle SMS opt-outs. Some reviewers check.
6. Special use case flagging
Certain industries get slower review by design. If you're in healthcare, financial services, or political, expect longer waits and more back-and-forth.
How to speed up approval
- Prep your paperwork before you submit. Have your EIN letter, legal business name, and DUNS number (if you have one) ready.
- Make sure your business website is live and clearly identifies the business. Include a contact page.
- Publish a privacy policy and an SMS terms page. Link both from the footer.
- Write sample messages that reflect real traffic. If you'll send review requests, submit review request samples — not generic marketing copy.
- Describe opt-in explicitly. Reference the exact place on your site or booking flow where the customer agrees.
- Register the right Campaign use case. "Mixed" is the safest default for a small local business.
- Respond quickly to rejection reasons. Rejections aren't the end of the process, but each round adds a few business days.
What "approval" actually gets you
Approval unlocks higher throughput and reliable deliverability. Carriers still monitor content, opt-out rates, and complaint rates, so a poorly-run Campaign can still be filtered or suspended after approval. See why business texts get blocked.
Common mistakes
- Assuming you can start sending the day you register. You cannot.
- Submitting the Brand and immediately sending high volume from an unregistered number.
- Using the same Campaign for two very different use cases (e.g., customer service + marketing) — you'll get flagged for a mismatch.
- Registering as a "sole proprietor" when you actually have an EIN and are structured as an LLC. Use the EIN path; it's faster and unlocks more capacity.
- Ignoring rejection emails from the registry for days. Each stall costs you a fresh few days of review.
FAQ
Can I send messages while approval is pending?
Yes, but volumes are heavily limited and filtering is aggressive. Don't count on delivery until you're fully approved.
How much does A2P 10DLC cost?
The registry charges a one-time Brand fee, a Campaign vetting fee, and a small monthly Campaign fee. Most providers pass these through at cost. Fees change; see current TCR pricing for the up-to-date number.
Can a sole proprietor register?
Yes — there's a sole proprietor path. Throughput is lower and Google verification steps are added, but it works. See business texting without an LLC.
Do I need to register if I'm sending fewer than 10 messages a day?
Yes. Volume doesn't exempt you. Any A2P traffic requires registration.
What happens if I don't register?
Your traffic will be filtered aggressively — often silently — and you may be charged per-message unregistered surcharges by some providers.
How SoTrustworthy helps
SoTrustworthy walks new customers through the A2P 10DLC Brand and Campaign registration during onboarding, uses the correct use-case category for review requests and customer follow-up, and monitors registration status so you know exactly when your traffic is fully approved.
Read next:
Ask every customer for a review—without review gating.
SoTrustworthy sends a compliant, perfectly-timed review request to every customer after the job — no filtering, no gating, just more honest 5-star reviews on Google.
