Do You Need 10DLC Registration to Text Leads?

The short answer

Yes, if you text leads from a regular 10-digit business number through a texting app or platform, you need A2P 10DLC registration. Twilio's documentation says anyone sending SMS or MMS over a 10-digit long code from an application to US numbers must register, and that carriers treat all texts sent through a provider like Twilio as application-to-person traffic (Twilio). Unregistered senders face extra carrier fees and more filtering.

Why "it's just a local number" doesn't exempt you

You might think a local number you text from is like a personal phone. Carriers don't see it that way. Twilio explains that 10-digit long codes were built for person-to-person messages, and after years of spam, US carriers set up A2P 10DLC so business texts sent from software are verified and consensual. If your CRM, dialer or lead platform sends the texts, that's application-to-person traffic.

What registration involves

Twilio describes two parts:

A Brand. Who is sending the messages, so carriers know you're a real business. Twilio says Standard and Low-Volume Standard Brands need a business tax ID, such as an EIN.
A Campaign. What you'll send and how people opt in, opt out and get help. You also describe the purpose of your messages and choose a use case, such as marketing or account verification.

Sole proprietors without a business tax ID have their own Brand type, with lower limits. Twilio lists a Sole Proprietor Brand at one Campaign and about 1,000 message segments a day to T-Mobile.

What registering gets you, and what it doesn't

Registered traffic: Twilio says registration brings lower message filtering and higher throughput.
Unregistered traffic: Twilio says senders who don't register pay additional carrier fees for unregistered traffic.
Other number types: Toll-free numbers and short codes aren't part of A2P 10DLC. They have their own approval processes.

Registration doesn't replace consent. It's a carrier requirement, not a legal permission slip. You still need the right consent for the texts you send. Our posts on Texas SB 140 texting rules and FCC opt-out rule changes cover that side.

A checklist for lead teams

Find out what your platform uses. Ask whether your texts go out from a 10DLC number, toll-free number or short code.
Register before launch. Set up the Brand and Campaign before you start texting new leads.
Describe your real use. Write the Campaign description to match the texts you'll actually send, including how leads opt in.
Honor STOP right away. Keep opt-out handling working in every tool that can text.
Watch delivery. If replies drop off suddenly, check your registration status and carrier filtering before blaming lead quality. Our guide to tracking lead quality by source helps you tell the two apart.

This article is general information, not legal advice. Carrier and provider rules change, so check your messaging provider's current documentation.

Bottom line

If software sends your lead texts from a local 10-digit number, register for A2P 10DLC first: a Brand for who you are and a Campaign for what you send. It cuts filtering and avoids unregistered fees, but you still need consent for every lead you text.

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