What is A2P 10DLC?
A2P 10DLC is a system that allows businesses to send Application-to-Person (A2P) type messaging via standard 10-digit long code (10DLC) phone numbers. Carriers in the US consider all our traffic to be A2P. Carriers’ A2P 10DLC offerings provide better delivery quality and lower filtering risk.
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 message any US numbers, you must complete registration. A2P 10DLC registration can be done inside of Twilio for users that host their own numbers, or if we host your numbers you may choose to use our API to register yourself and your client businesses.
Read on for details of the rules and requirements under the new A2P 10DLC registration system, and answers to many common questions.
How does A2P 10DLC work?
There are two important requirements under the new A2P 10DLC system:
Businesses must identify who they are to the carrier networks (Brand registration).
Businesses must register what type of messages they are sending, i.e. notifications (Campaign registration).
Trust Hub is integrated with The Campaign Registry (TCR) to meet the requirements of carriers while making it easy for businesses to onboard.
When you complete your US A2P Brand registration, your Brand will receive a Trust Score from 0 to 100. This rating influences the maximum message throughput that will be allocated to each of your Campaign use cases.
What is the deadline to register?
We strongly recommend customers complete registration as soon as possible. This requirement applies to all businesses with an EIN number and who send messages to US numbers (regardless of message volume).
Dates and deadlines for business registration:
March 1, 2022 - AT&T and T-Mobile fee increases for unregistered traffic, T-Mobile Campaign registration fee goes into effect.
As of March 1, 2022, long code messaging that is not associated with a registered A2P Campaign will incur higher per-message carrier fees from AT&T and T-Mobile. In addition, T-Mobile will begin imposing a one-time $50 Campaign registration fee on any new Campaigns registered on or after this date.
End of A2P registration transition period - AT&T's full Campaign-based fee schedule goes into effect for messages to users on AT&T's network. The per-message fees associated with unregistered SMS and MMS to AT&T increase. AT&T fees will vary from $0.002 to $0.004 per outbound SMS segment and $0.0035 to $0.005 per outbound MMS depending on your use case.
AT&T and T-Mobile will continue to increase filtering (blocking) and/or impose additional penalties for non-registered 10-digit long code traffic sent to users on their network. Sending messages from long code numbers without registration may no longer be possible.
Verizon launched its A2P 10DLC service in January 2019. At this time, Verizon has not announced any plans to adopt these new Brand and Campaign registration requirements.
What happens if I don't register?
Increased message filtering and fees will apply to messages that are sent without registration. We also expect that at a future date, unregistered messaging to the US via long code numbers will cease to be supported altogether.
What’s a campaign use case?
This represents a messaging use case, for example, sending account notifications or conducting marketing. In carrier terminology, these are called "Campaigns." For more specificity, Trust Hub is calling them campaign use cases.
Your campaign use case describes the type of messaging you plan to send. This will influence the price you pay per message on AT&T.
Use cases vary from notifications and fraud alerts to customer care to social updates.
Is messaging to Canada or any other countries also affected by these changes?
No. Canadian mobile carriers may introduce registered A2P 10DLC solutions in the future, but at this time carriers have not announced any plans to do so.