10DLC for salons: text reminders that actually arrive.

If your massage studio or spa sends appointment reminders by text from a local number, 10DLC registration decides whether they reach your clients. This guide explains what A2P 10DLC is, why US carriers require it for salons, and the consent and opt-out rules every texting business should know.

Updated November 9, 2026By Damian Maćkowski, founder of Rytuo

This guide is general information, not legal advice. Carrier rules and FCC regulations change, and state laws can add their own requirements. Check with your messaging provider and, for marketing texts, with a lawyer.

What A2P 10DLC is

A 10DLC number is a 10-digit long code, an ordinary local US phone number. A2P means application-to-person: messages sent by software rather than typed by one person to another. US carriers treat texts sent through a messaging provider as A2P. Twilio describes A2P 10DLC as the standard that US telecom carriers have put in place to ensure that SMS traffic to US end users through long code phone numbers is verified and consensual. It exists because local numbers, built for person-to-person texting, were being used for spam.

Why a salon needs it

Reminders are A2P. Appointment confirmations and reminders sent automatically by your booking software are application-to-person texts. Twilio's documentation says anyone sending SMS or MMS over a 10DLC number from an application to the US must register.
Delivery. Registration brings lower filtering and higher throughput; unregistered traffic carries additional carrier fees, according to Twilio.
Trust. Registration ties every message to a known business, so clients know who is texting them.

How registration works

Brand. Your business is registered as the sender, so carriers know a legitimate business is texting. Standard brands need a business tax ID such as an EIN.
Campaign. You describe what you send (for example appointment reminders), how clients opt in, how they opt out and get help, with sample messages.
Through a provider. The Campaign Registry, which runs the 10DLC registry, says businesses cannot register with it directly; a registered messaging provider (a Campaign Service Provider) does it on their behalf.

Toll-free numbers and short codes are not part of the 10DLC system; toll-free numbers go through their own verification.

Consent and opt-out basics

Rule	What the FCC rules say
Consent before texting	Autodialed texts to a mobile phone are banned unless the owner previously gave consent or the message is for emergency purposes
Informational vs commercial	Commercial texts require written consent; for informational texts, consent may be oral (FCC consumer guide)
Written consent	Prior express written consent is a signed written agreement that clearly authorizes the sender to deliver advertisements or telemarketing messages to a stated number (47 CFR 64.1200(f)(9); an electronic or digital signature can count where federal or state law recognizes it)
Opting out	Replies such as "stop", "quit", "end", "revoke", "opt out", "cancel" or "unsubscribe" revoke consent; any reasonable method counts
Deadline	Opt-out requests must be honored within a reasonable time, not more than ten business days
Confirmation text	One confirmation text after an opt-out is allowed if it only confirms the request and has no marketing

From the FCC consumer guide and the current eCFR text of 47 CFR 64.1200, checked November 9, 2026. The CTIA Messaging Principles and Best Practices add the wireless industry's voluntary guidelines.

A checklist for your studio

Ask for the client's mobile number and their agreement to appointment texts at booking and on your intake form; keep the record.
Keep reminders informational: date, time, service, address, how to reschedule. Send promotions only to clients who agreed in writing.
Good practice: name your business in every message and include opt-out wording such as "Reply STOP to opt out".
Make sure your software or provider has registered your Brand and Campaign before you start.
Honor every opt-out at once, whatever words the client uses.

Text reminders with Rytuo

Rytuo sends reminders and automations, including offers for empty slots, win-back messages for regulars and review requests, and you choose approval mode (you confirm each message) or automatic mode. For US salons, text messaging is being set up as part of onboarding: we go through your sending number, consent wording and registration with you before the first US text goes out. Meanwhile the Rytuo Assistant answers clients on Instagram, Messenger, WhatsApp and your website chat. See massage therapist software, spa software or pricing.

Frequently asked questions

What is 10DLC?

10DLC means 10-digit long code: an ordinary local US phone number. A2P 10DLC (application-to-person) is the standard US carriers put in place so that text messages sent from software over local numbers are verified and consensual. Businesses register a Brand (who is sending) and a Campaign (what they send and how people opt in and out).

Does my salon need 10DLC registration to send appointment reminders?

If your reminders are sent by software from a local 10-digit number, yes: Twilio's documentation says anyone sending SMS or MMS over a 10DLC number from an application to the US must register. Toll-free numbers and short codes are separate systems. Usually your booking software or messaging provider registers on your behalf, because The Campaign Registry does not take registrations directly from businesses.

What happens if texts are not registered?

Twilio says registration brings lower message filtering and higher throughput, and that customers who send unregistered traffic from a 10DLC number pay additional carrier fees. In practice, unregistered reminders are more likely to be filtered and not reach your clients.

Do clients need to agree to receive appointment texts?

Yes, consent is the basis. The FCC says its rules ban autodialed texts to a mobile phone unless the owner previously gave consent (or it is an emergency), that commercial texts require written consent, and that for informational texts consent may be oral. Clients can opt out at any time, for example by replying STOP, and opt-outs must be honored within ten business days.

Does Rytuo send text reminders in the US?

Rytuo sends reminders and automations (gap filling, win-back, review requests), in approval mode or automatic mode. US text messaging is being set up for US salons as part of onboarding: we go through your number, consent wording and registration with you before the first US text goes out.

Sources

Twilio: Programmable Messaging and A2P 10DLC, checked November 9, 2026
The Campaign Registry (TCR), checked November 9, 2026
CTIA: Messaging Principles and Best Practices, checked November 9, 2026
FCC: Stop Unwanted Robocalls and Texts (consent rules for texts), checked November 9, 2026
eCFR: 47 CFR 64.1200 (TCPA rules: consent, revocation, prior express written consent), checked November 9, 2026

Information checked on November 9, 2026. Rules and figures change; if something here is out of date, email [email protected] and we will correct it within 7 days.

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