To send SMS or MMS to US phone numbers, you must complete US carrier registration. DialLink guides you through this process step by step in your workspace.
This article explains how to complete A2P 10DLC registration in DialLink and what information you need at each step.
Before you start
Make sure that:
You are logged in as an Owner or Admin.
Your DialLink account is paid (registration is not available for trial accounts).
You have the required information ready (see: Information required for A2P 10DLC registration).
Step 1: Start registration
Go to Settings.
Open the Trust tab.
Click Register.
Step 2: Confirm how you use DialLink
Select how you use DialLink:
For business
For personal use
Then confirm whether you have a US or Canadian address and mobile phone number. Your mobile phone number must be provided by a traditional carrier.
You’ll also be asked whether you have a business tax ID number.
Your answers determine which registration flow is available.
Step 3: Complete registration
For personal use
For personal use
1. Enter your personal details
Provide the following information:
First name
Last name
Email address
Phone number
Important:
The phone number must be a carrier-based US or Canadian mobile number.
VoIP numbers (including DialLink numbers) are not supported.
2. Provide your business or home address
Сhoose an existing address added to your workspace, or add a new one. US and Canadian addresses are accepted. PO boxes are allowed.
3. Describe how you will use text messaging
Explain why and how you plan to send text messages to US numbers. Tips:
Describe real use cases.
Avoid vague or generic descriptions.
Ensure your explanation matches your message samples.
This information helps carriers understand your messaging intent.
4. Add message samples
Provide at least two examples of real messages you plan to send.
Each sample should clearly include:
your business name,
the purpose of the message,
clear opt-out instructions (for example: Reply STOP to unsubscribe).
You can add more samples if needed.
5. Describe message content and user consent
Indicate whether your messages include:
embedded links
phone numbers
Then explain how end users consent to receive messages: how they opt in, when consent is collected, and whether multiple opt-in methods are used. If applicable, provide opt-in keywords and opt-in confirmation message.
This section is one of the most common reasons for registration rejection. Make sure the description is clear and accurate.
6. Select a phone number for US messaging
Choose the DialLink phone number that will be used for sending messages to US numbers.
Notes:
Individuals and sole proprietors are limited to one phone number.
Other numbers can still receive US messages but won’t be able to reply.
For business
For business
1. Enter business registration details
Select your Business registration ID type (for example, EIN or another applicable identifier). Enter your Registration number exactly as it appears in your tax documents.
2. Confirm business address from tax documents
Choose an existing address or add a new one. Make sure the address exactly matches your official tax or registration paperwork. US carriers cross-reference this data with tax agencies. Mismatched information is one of the most common reasons for registration rejection.
3. Provide additional business information
Select and enter:
Business type
Company type
Business identity
Industry
Website, business listing, or other online presence
Regions of operation
This information helps carriers assess your business profile and messaging intent.
If your business doesn’t have a website, provide another verifiable online presence.
4. Add a point of contact
Enter details for the primary contact person:
First name and last name
Email address
Job title
Position
Phone number
This person may be contacted if carriers need clarification during the review process.
5. Explain how your business will use text messaging
Describe why and how you plan to send messages to US phone numbers. Your description should:
reflect real, day-to-day use cases;
explain the purpose of your messages;
align with the message samples you provide later.
Tip. Avoid vague descriptions like 'customer communication' or 'marketing purposes' without details.
6. Add message samples
Provide at least two examples of real messages you plan to send. Each message sample must clearly include:
your business name,
the purpose of the message,
clear unsubscribe instructions (for example: Reply STOP to unsubscribe).
You can add more samples if your use cases vary.
Tip. Message samples must match the use cases you described in the previous step.
7. Describe message content and user consent
Specify whether your messages include:
embedded links
phone numbers
Then explain how end users consent to receive messages: how they opt in, when consent is collected, and whether multiple opt-in methods are used.
Note. If multiple opt-in methods exist, all of them must be listed.
If users can opt in via text message, also provide opt-in keywords and opt-in confirmation message.
This section is one of the most common reasons for registration rejection. Make sure the description is clear and accurate.
Note. You can save your progress at any time by clicking Save as draft.
Step 4: Confirm forbidden message topics
Review the list of forbidden message topics, such as:
high-risk financial services
gambling
debt collection
prescription drugs
illegal substances
S.H.A.F.T. categories
Confirm that you will not send messages related to these topics.
Step 5: Registration payment
US carrier registration includes mandatory fees. During the registration process:
A one-time registration fee is charged.
A monthly recurring fee applies based on your registration type.
Additional fees may apply if a rejected application is resubmitted.
Fees are enforced by US carriers and are required to complete registration.
See details: A2P 10DLC fees, limits, and benefits in DialLink
Step 6: Review and submit
After completing all steps, review your information carefully and submit your registration. Your application status will appear in Settings > Trust as Pending, Approved, or Rejected.
Learn more: A2P 10DLC registration status in DialLink
After submission
Track your registration status in Settings > Trust.
Wait for carrier approval.
Once approved, you can start messaging US numbers in compliance with carrier requirements.