Note: All US phone numbers in Grayscale must be fully registered under your company's brand before you can begin texting. Messages sent using unregistered phone numbers will be blocked and marked as Undelivered with error code 30034 – US A2P 10DLC - Message from an Unregistered Number.

What is the A2P 10DLC?

A2P 10DLC refers to a system in the United States that allows businesses to send Application-to-Person (A2P) type messaging via standard 10-digit long code (10DLC) phone numbers.

Having your brand registered and approved with the 10DLC means better delivery quality and lower filtering risk for you and your team. This process is required for any brand that is messaging candidates in the US – no matter where you're texting from.

What do I need to do?

If you do not send any messages to users in the United States using long code numbers, you do not need to do anything.

If you do send messages to the United States using long code numbers you will need to submit your Brand Registration and your Campaign Registration.

What information do I need to provide?

Brand Registration

When registering your brand for A2P 10DLC, you’ll need to share basic business details, as listed here:

Details Needed	Examples
Legal Business Name	Grayscale Labs, Inc.
Physical Address	Street, City, State/Province/Region, Zip/Postal Code, Country
Business Type	Sole Proprietorship • Partnership • Corporation • Co-Operative • LLC • Non-Profit
Company Status	Private • Public
Stock Ticker (if public)
Stock Exchange (if public)	NYSE • NASDAQ • etc
Business Registration Number
Business Registration Number Type	EIN for US-based companies, other business identifier for non-US companies
Company Website
Regions of Operation	US and Canada, Asia, Africa, Europe, Latin America
Authorized Representative Name
Authorized Representative Email Address
Authorized Representative Phone Number
Authorized Representative Job Title

Need help locating the required pieces of information? See Brand Registration & the 10DLC for more info.

For Public Entities

All public entities are now required to complete a 2FA (2-factor authorization) in order to complete the registration submission. The verification process should be relatively straightforward:

The point of contact listed in your submission will receive an email from The Campaign Registry at noreply@auth.campaignregistry.com to complete the verification steps
This will need to be completed within 7 days of receiving the verification email

Here's an example of that email:

Campaign Registration

See US A2P 10DLC Registration Prerequisites – Campaign Registration for requirements and templates.

A publicly accessible, compliant Privacy Policy
A publicly accessible, compliant Terms of Service
The SMS Consent Question has been configured

Please note:

All submissions are subject to a manual vetting process and can take up to 3 weeks.

Accounts are considered to be unregistered until there is an approved and verified result – this means your team will not be able to send any messages within that time frame.

Have questions? Send us an email at sms-registration@grayscaleapp.com

United States A2P 10DLC Registration