What is A2P 10DLC?

A2P 10DLC (Application-to-Person 10-Digit Long Code) messaging is a new system and requirements established by major US mobile carriers to support the growing number of businesses texting their clients, while protecting end-users from unwanted messages.

10-digit long code phone numbers (10DLC) have traditionally been intended for Person-to-Person (P2P) SMS traffic only.

With the launch of A2P 10DLC across all major mobile carriers in the US, all SMS traffic from virtual number providers (such as Concierge), will be considered A2P traffic. Registered numbers can expect low filtering and increased deliverability and throughput.

Effective August 31, 2023, all 10DLC phone numbers used to send A2P SMS messages in the U.S. must be fully registered with an approved Brand and Campaign, or will experience a full block of unregistered SMS traffic.

Overview

A2P 10DLC Phone Number Registration Form
Required Business Information
Required Campaign Information
A2P 10DLC Registration Guidance (separate article)
Sole Proprietor Brands
FAQs

Required Steps and Information

Medallia Concierge will complete the A2P 10DLC registration process on behalf of its customers using 10 digit US phone numbers (10DLC) with their service.

Medallia Concierge customers must fill out this form to ensure registration:

A2P 10DLC Registration Form

There are two important requirements under the A2P 10DLC system:

Brand Registration: Businesses identify who they are to mobile carriers.
Campaign Registration: Businesses register what type of messages they are sending (their use case). i.e. notifications, appointment reminders, reservation updates, etc

Required Business Information

Business Information	Business Name Physical Address: Street, City, State/Province, ZIP Code, Country Business Type: Sole Proprietorship Partnership Corporation Co-Operative LLC Non-Profit Company Status Private Public: Stock Ticker & Exchange Business Registration Number EIN / Tax ID for US-based companies Industry Website Regions of Operations
Points of Contact	One authorized representative with the following info: Name Email Title Phone Number Job Position Director/VP/GM/General Counsel/CEO/CFO A second point-of-contact may also be provided, but is optional.

Required Campaign Information

Campaign Field	Description	Requirements
Campaign Description	Provide a clear and comprehensive overview of the campaign's objectives and interactions the end-user would experience after opting in.	If the Campaign pertains to Loan Arrangement or Direct Lending, specify such so that this can be included in your registration.
Message Flow End-User Opt-In Process	The primary purpose of the Message Flow (or Call to Action) and required disclosures is to ensure the end user consents to receive text messages and understands the nature of the program. The Message Flow must be accessible by a 3rd party reviewer so it can be verified.	Program or product description Telephone number(s) from which messaging will originate Identify of the organization or individual being represented in the initial message Clear and conspicuous language about opt-in and any associated fees or charges Other applicable terms and conditions (e.g., how to opt-out, customer care contact information, and any applicable privacy policy) Explain if the Call to Action is behind a login, not yet published publicly, is verbal, on paper.
Opt-in Message Confirmation	Required for all Opt-in methods	Confirmation message must be delivered immediately after the Consumer opts into the program. Message must contain Program or product description Customer care contact information Opt-out instructions Product quantity or recurring messages program disclosure “Message and data rates may apply” disclosure
Sample Messages	Provide message examples highlighting use case	Identify message sender (brand) Indicate templated fields with brackets Include opt-out language to at least 1 sample message

Sole Proprietor Brands

Sole Proprietor registration is available for small businesses without a Tax ID or EIN. The following requirements will apply.

No Tax ID / EIN: In order to qualify for Sole Proprietor registration, you must not have an EIN (Employer Identification Number). Any business that has a Tax ID (EIN) is not eligible, and should instead register for a Low Volume Standard Brand.

US or Canada only: Sole Proprietor Brands are limited to individuals based in the US and Canada.

Information required for registration:

Brand or business name

First name

Last name

Email address

Mobile phone number (in US or Canada)

Physical address (in US or Canada)

Note that each mobile phone number can only be used to validate up to 3 brands. Each email or physical address can only be used to validate up to 10 brands. This limit applies for all A2P registrations within the ecosystem, even brands registered outside of Twilio.

FAQs

Can a customers choose not to register their brand/campaign for A2P 10DLC?

No, 10DLC registration is now a requirement for all messaging providers sending A2P (application-to-person) SMS traffic to mobile recipients in the US.

After August 31, 2023, all unregistered numbers/traffic will be subject to carrier filtering and outbound messages being blocked.

A2P 10DLC Campaign Guidance

Forbidden Messaging Use Cases in the US