GoHighLevel A2P 10DLC Registration: Steps + Costs (2026)

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If you turn on missed call text back in HighLevel and your texts never arrive, the cause is often A2P 10DLC registration. US carriers require businesses to register before sending texts from standard 10-digit local numbers, and HighLevel's docs say a text-back can fail if no number in the account is eligible to send SMS (HighLevel: Missed Call Text Back).

This guide walks through the registration as HighLevel documents it in October 2026: which brand type to choose, what to prepare, the exact Trust Center steps, how to describe a text-back program so reviewers can verify it, what it costs, and why campaigns get rejected. It's based on HighLevel's help center, not on registrations we've run ourselves, and it isn't legal advice. Carriers and their registration partners make the final call.

TL;DR: To text US customers from a regular local number in HighLevel, including missed-call text-back, you must register an A2P 10DLC Brand (who is sending) and Campaign (what you send and how people opt in) under Settings, then Phone System, then Trust Center. Businesses with an EIN register a Standard Brand. Single-person businesses without a Tax ID use the Sole Proprietor path, which is limited to one number. As of October 2026, Low Volume registration is $22.50 one-time plus $1.50 to $10.50 a month per campaign, and the fees start when you submit, whatever the outcome. Most rejections come from mismatches between your legal name, website, sample messages, and opt-in flow. After approval, link each number to the campaign and confirm it shows "A2P Verified."

What is A2P 10DLC, and does missed-call text-back need it?

Yes. A2P 10DLC is the carrier registration system for business texts sent to US recipients from standard 10-digit local numbers, and HighLevel's own help article says it covers "appointment reminders, customer-care messages, account notifications, marketing messages, and other application-generated business communications" (HighLevel: What is A2P 10DLC). An automatic text-back sent by HighLevel is an application-to-person (A2P) message.

Registration has two parts:

1. Brand: who is sending. Your legal business identity.
2. Campaign: what you send, why, and how recipients agreed to get it.

You need both. HighLevel says brand approval alone doesn't let you send messages.

Toll-free numbers are different. They don't use A2P 10DLC brand and campaign registration. They go through a separate toll-free verification process. Canadian numbers have their own rules depending on where you text and when the number was bought.

How do you register A2P 10DLC in HighLevel, step by step?

Register from Settings → Phone System → Trust Center in the sub-account that will send the texts. These are HighLevel's documented steps (What is A2P 10DLC; Campaign Registration guide):

1. Open Trust Center and click Start Registration under A2P Messaging (SMS).
2. Answer the Get Started questions: where the business is registered and whether it has a Tax ID. This picks the Standard or Sole Proprietor path.
3. Enter brand details exactly as they appear on official records, then the business address and an authorized representative.
4. Complete verification if prompted: either Persona identity verification or a one-time code sent to the brand email. You get three attempts and two resends for the email code.
5. Pick the messaging volume. Standard Brands choose Low Volume or High Volume. Sole Proprietors get single-number registration.
6. Choose Chat Widget Setup or Manual Setup. Chat Widget Setup is the default. It installs a HighLevel opt-in widget on your site and pre-fills the campaign description, sample messages, and opt-in text. Switch to Manual Setup if people opt in some other way, such as an existing website form, paper form, lead form, QR code, kiosk, or verbal consent.
7. Fill in the campaign: use case, website, description, sample messages, opt-in method and wording, and Privacy Policy and Terms links.
8. Click Review Application. HighLevel runs an AI compliance review. Fix anything it flags, click Review Again, and submit once every check passes.

Once a campaign is Pending, wait. HighLevel says not to create a second campaign just because the first is still under review.

How much does A2P registration cost in HighLevel?

As of October 2026, a Low Volume Standard registration costs $22.50 one-time plus $1.50 to $10.50 per month per campaign. Full table from HighLevel's Phone System Pricing & Billing Guide:

Type	Daily segment limit	Monthly campaign fee	One-time registration
Sole Proprietor	3,000 segments/day	Up to $2.10/campaign	$22.50 (includes $3 Fast Track)
Low Volume Standard	6,000 segments/day	$1.50 to $10.50/campaign	$22.50 (includes $3 Fast Track)
High Volume Standard	600,000 segments/day	$10.50/campaign	$64.00 (includes $3 Fast Track)

What to know about these fees:

• They start when you submit, regardless of whether the campaign is approved. To stop the monthly fee, delete the campaign.
• The $3 Fast Track fee is non-refundable.
• Resubmissions are free for eligible rejected campaigns. HighLevel removed the previous $15 resubmission fee on February 1, 2026.
• No HighLevel markup on A2P fees, per the campaign guide. But if your agency has rebilling turned on, HighLevel adds a fixed 5% to A2P and carrier fees at the sub-account level.

Texts themselves are billed separately, at $0.00747 per segment plus carrier fees.

Get the full guide

This is a shortened version. Read the full guide with all scripts on Peace Call.

Originally published at getpeacecall.com.