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What is A2P US 10 DLC Messaging?


Question

What is 10 DLC Messaging? What is going to change with A2P 10 DLC messaging?

Applies To

  • US Numbers
  • US Carriers
  • SMS
  • 10 Digit Long Code (10 DLC)
  • Shared Short Codes
  • App-to-Person (A2P)

Answer

10 DLC

10 DLC stands for 10 Digit Long Code. It is the new standard for A2P messaging in the US, which applies to all messaging over 10 digit geographic phone numbers. Major US carriers have announced their requirements for SMS A2P (application-to-person) messaging using 10 digit geographic numbers, also known as 10 DLC. This new standard provides many benefits to our users including supporting higher messaging speeds and better deliverability.

Background on Long Codes (Long Virtual Numbers)

Long codes (also known as Long Virtual Numbers, LVNs, or long numbers) are essentially 10 digit phone numbers designated by the mobile operators for person-to-person communication. Some sample use cases include chat applications, anonymous dating applications, and customer service communications.

Historically in the United States, P2P (person-to-person) traffic (not A2P traffic) is permissible using a Vonage USA long code or LVN. Long virtual numbers are available here if your business does not already own one. There are also additional use case limitations for long code traffic, which can be viewed in more detail here.

What is A2P 10 DLC?

10 DLC, which stands for 10 Digit Long Code, is the new standard for A2P messaging in the US, which applies to all messaging over 10 digit geographic phone numbers. They are also the fixed numbers you may bring over to Vonage for SMS provisioning. A 10 DLC number is essentially a local 10-digit phone number that can support higher volumes of text messages. Many experts anticipate that 10 DLC will become the new standard for business text messaging. 10 DLC numbers are designed and sanctioned by the termination vendors for A2P SMS messaging.

How A2P 10 DLC is Changing The Game in Short & Long Code Use

Since A2P (application-to-person) traffic on long codes historically has not been supported by the carriers, businesses have been forced to utilize short codes for their A2P needs. However, for carriers that are opting to launch and support A2P for 10 DLC in the USA, this limitation will be lifted and A2P traffic will be allowed (with new guidelines).

Vonage Customers Using US Shared Short Codes

T-Mobile/Sprint and AT&T’s new Code of Conduct prohibits the use of shared originators, therefore, Shared Short Codes will no longer be an acceptable format for A2P messaging.

  • Vonage users with a Shared Short Code must migrate SMS traffic to either a 10 DLC, Toll-Free SMS Number, or Dedicated Short Code.
  • Vonage users on the Shared Short Code API must migrate to either our SMS API or Verify API.
  • Users who use a Dedicated Short Code for a single brand are not affected by these changes within the scope of 10DLC.
  • We have created a guide on requirements and migration options for you.

Wireless Carriers Launching 10 DLC

Each wireless carrier is launching their A2P 10 DLC capabilities with unique guidelines and on different timelines. We’ve outlined the current status of carrier launches for you on this page and will continue to update you with what we know, how the changes will affect you, and what you can do to ensure the optimum benefits of your services and solutions with us.

Verizon and A2P 10 DLC

Verizon was the first network to roll out their commercial availability of 10 DLC (A2P) messaging in April 2019. Vonage has leveraged this new offering and is live with Verizon’s enhanced commercial text messaging platform. The following Verizon pass-through fee will be added to mobile terminated (MT) messages originating from long codes:

Carrier Name

Surcharge in Euros

Surcharge in USD

Verizon Wireless

€0.00208

$.0025

This is industry-wide, and we will be passing on the additional surcharge to our customers at the same rate charged to Vonage.

AT&T

  • AT&T’s 10 DLC program is currently in a registration “grace period” A minimum 30 days’ notification will be provided of expiration of this grace period.
  • Customers should submit their brand and campaigns ASAP. 
  • Unregistered traffic will continue to be subject to P2P spam policies and traffic throughput restrictions.
  • During the grace period, a pass-through Mobile Terminated fee of $.002 (0.00166 euros) will be applied to all registered and unregistered traffic sent from March 2021. Postpaid customers will see this on their April 2021 invoice.
  • The pass-through fee for registered traffic after the grace period will remain at $0.002  (0.00166 euros) per SMS.
  • The pass-through fee for unregistered traffic after the grace period will be $0.04 (0.0336 euros) per SMS.

T-Mobile & Sprint

Effective October 1st, 2021, T-Mobile will be ending their “grace period”, and will start charging, the following fees:

  • Campaign Service Activation Fees ($50)
  • Campaign Service Migration Fees ($50)
  • The pass-through fee for registered traffic will be $0.003(0.00249 euros) per inbound/outbound SMS.
  • The pass-through fee for unregistered traffic will be $0.004(0.00332 euros) per inbound/outbound SMS.
  • Special business review requests are still in a grace period. The $5000 one time fee will apply on a future date to be communicated with a of 30-days notice
  • In addition, on the same effective date, non-compliance fees apply for violation of practices
    as spelled out in T-Mobile’s Code of Conduct
  • Customers should submit their brand and campaigns ASAP

Other Carriers Planning to Launch A2P 10 DLC

Other wireless carriers are currently testing their solution and expected to follow suit and release their A2P 10 DLC service in the future. As soon as we hear more about the respective A2P 10 DLC releases for other wireless carriers in the US, we’ll update you with what we know, how the changes will affect you, and what you can do to ensure the optimum benefits of your services and solutions with us.

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