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10DLC Registration

Register 10DLC

Get started with a 10DLC for your account

To send SMS messages to customers in the United States with your Telesign account, you need to register for a 10DLC (10-Digit Long Code).


A 10DLC will help ensure reliable and continuous delivery of your SMS messages with major U.S. operators. You can learn more about 10DLCs through the 10DLC FAQs or the comparison chart below.


If you need to send SMS messages to customers in Canada, please request a Toll Free Number for your account.


To send SMS messages to customers countries other than the United States and Canada, please contact us to get started with registering localized phone numbers.

10DLCs, Toll free and dedicated short code numbers compared
Sender ID Features
2way Support
Use Case
Handset Delivery Receipts Support
Canadian Reach
Voice Support
Minimum Lease Term
Provisioning Time
10 DLC
Format10-digit phone number
ThroughputDetermined by “reputation” score in The Campaign Registry (brand + campaign type)
2way SupportYes
Handset Delivery Receipts SupportNo
Canadian ReachNo
Voice SupportInbound: Yes
Outbound: Yes
ComplianceSubject to carrier filtering. Must register brand and campaign with Carriers to prevent number shut down. CTIA and TCPA Best Practices.
Minimum Lease Term3 months
Provisioning Time3-5 business days
Fees$7 setup fee, $17 monthly fee
Toll Free Number
Format Distinct three-digit code (800, 888, 877, 866, 855, 844 and 833)
ThroughputVaries upon request
2way SupportYes
Use CaseOTP, ARN, MKT (MKT with restrictions)
Handset Delivery Receipts SupportYes
Canadian ReachYes
Voice SupportInbound: Yes
Outbound: No
ComplianceFCC, TCPA Best Practices
Minimum Lease Termn/a
Provisioning Time2-3 weeks
Fees$1.50 setup fee, $1.50 monthly fee Customer owned TFN:$1.50 monthly fee
Dedicated Short Code
Format5 or 6-digit phone number
Throughput100+ msg/sec can be increased upon request
2way SupportYes
Use CaseOTP, ARN, MKT; suggested for higher volumes
Handset Delivery Receipts SupportYes
Canadian ReachNo - must buy CA DSC
Voice SupportInbound: No
Outbound: No
ComplianceCTIA and TCPA Best Practices. Opt-out support is required for recurring messages campaigns.
Minimum Lease Term3 months
Provisioning Time8-12 weeks
FeesRandom: $0 setup fee;$1000 monthly fee. Vanity: $0 setup fee; $1500 monthly fee

FAQ for 10DLCs

What is 10DLC?

What are the advantages of 10DLCs?

Why are these changes taking place?

US carriers are introducing 10DLCs as a dedicated solution for businesses to send SMS and MMS messages using long codes. The goal is to protect consumers from spam by creating a controlled messaging ecosystem and giving visibility into "Who" and "What" for each campaign. It will also allow for higher messaging volume with better quality of service and more affordability than traditional traffic.

What other information should I know?

Who are the participating operators?

How much does it cost?

TFN leased from Telesign:
$1.50 set up fee per TFN
$1.50 monthly fee per TFN

Customer owned TFN
$1.50 monthly fee per TFN

How many messages can I send? And what types of traffic are supported?

The number of messages varies upon request. Types of traffic supported include: OTP, ARN (Alerts, Reminders, Notifications), and Marketing (marketing restrictions apply).

Is there content I need to be sure does not get sent?

Yes, any content related to Phishing, Fraud or Scam, Deceptive Marketing, High-Risk Financial Services, and Illegal Substances or Activities is forbidden.

Can I choose the prefix, and can I request a number of my choice?

Yes. Subject to availability.

Can I register an existing US Long Code as 10DLC?

What information do I need to apply for a 10DLC?

Are there other options?

Instead of switching to a TFN you could choose to switch to a:
• 10DLC = 10-Digit Long Code
10DLC allows for A2P (Application to Person) traffic to go through US long code numbers via an MNO (Mobile Network Operator). Learn more about them here.

What if I don't fill out the form?

Customers must register for a TFN by completing the registration form, or choose an alternative option, e.g., 10DLC (click for more info or to register). If a dedicated solution has not been established, your A2P traffic will be blocked.

Will this affect my traffic?

If you currently use P2P Long Codes they will be blocked for A2P traffic as of February 1st, meaning you cannot send SMS if you do not switch to an alternative, e.g., Toll Free Number or 10DLC (click for more info or to register).

10DLC registration form