A2P 10DLC registration checklist for US business texting
Step-by-step A2P 10DLC brand and campaign registration checklist for US business SMS: identity, use case, sample messages, opt-out, and what to expect from carriers.
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What A2P 10DLC is (in plain terms)
A2P 10DLC is the US carrier framework for application-to-person SMS sent from standard local phone numbers. Carriers use The Campaign Registry (TCR) to collect brand identity, message use cases, and sample content before they assign throughput to your number.
This is separate from your texting vendor subscription. Twilio's public A2P fee schedule lists brand registration, campaign vetting, and recurring campaign fees that apply no matter which UI sits on top [Twilio, "Pricing and Fees for A2P 10DLC Service," accessed 2026-10-29]. Our mass texting pricing and carrier fees guide shows how those layers show up on invoices from Textedly, SimpleTexting, EZ Texting, and SlickText.
Registration checklist
1. Brand identity. Legal business name, country, tax identifier type, and contact details that match public records. Sole proprietors and low-volume senders may qualify for cheaper TCR brand tiers; higher-volume mixed marketing uses Standard brand vetting.
2. Use case selection. Choose the TCR use case that matches reality (customer care, marketing mixed, account notifications, etc.). Misclassified campaigns get rejected or re-vetted.
3. Sample messages. Provide two examples with your business name, purpose, and opt-out language ("Reply STOP to opt out"). Samples should mirror what you will actually send.
4. Opt-out workflow. Document how STOP requests suppress future messages in your platform. Test STOP on a controlled number before launching a list import.
5. Number linkage. After brand and campaign approval, associate each sending long code with the approved campaign inside your vendor or carrier portal.
If texting is bundled with VoIP, ask whether the phone vendor registers on your behalf. Otherwise follow the same steps through your SMS provider. Grasshopper review and best business phone systems for small business note which phone products include texting so you do not register twice.
After approval: throughput and fees
Approval is not the end of cost tracking. Carriers bill per-message surcharges on delivered segments; major US carriers raised registered 10DLC SMS pass-through rates in 2026 [Bandwidth carrier surcharge tables, accessed 2026-10-29].
T-Mobile enforces daily brand-level message limits that depend on trust score; AT&T and Verizon throttle by messages per second. Twilio documents those limits in its throughput help articles. If you are under roughly 6,000 messages per day, confirm whether Low Volume Standard brand tier fits before paying for Standard vetting.
Appointment-style transactional texts still need consent and opt-out handling even when they are not promotions. Pair this checklist with appointment reminder text templates for wording that stays compliant on tone.
Frequently asked questions
Can I skip registration and text from my business VoIP app?
A: Carriers increasingly block unregistered A2P traffic. Some vendors hide registration in onboarding, but the TCR steps still happen.
How long does approval take?
A: Timelines vary by brand type and vetting backlog. Plan several business days and avoid scheduling a launch hour before approval lands.
Does registration guarantee delivery?
A: No. It grants permitted throughput. Content, consent, and list quality still affect filtering.
Where do I see fees before signing a texting plan?
A: Use the worksheet in mass texting pricing and confirm telecom surcharges on the specific plan tier you buy.