Your SMS from US numbers will be blocked by Carriers unless you’re compliant with A2P10DLC
Customers who send SMS from US numbers must register with the TCR to be compliant with US Telco Regulation, A2P10DLC (Application 2 Person 10 Digit Line Code) otherwise, your SMS traffic will be blocked from sending. This is not an Aircall regulation, but rather the U.S. Telecommunications making efforts to protect consumers and improve the delivery of legitimate text messages.
Register here as soon as possible.
Please note: registration can take a few weeks to be approved by The Campaign Registry due to volume. Our support team cannot expedite the registration process. If you have already submitted your registration, all updates will be provided directly on your support ticket.
After September 1st, 2023, all messages sent from unregistered 10DLC phone numbers to US numbers will be blocked by the carrier. If your account is not registered for some version of SMS compliance, your messages will not be delivered by the carriers to intended US recipients.
We strongly recommend registering ASAP to be compliant to avoid disruption in SMS service. To help ensure your registration is successful, find this Form Details guide and pay close attention to the fields where it says “be precise”.
For customers whose registration process is not yet completed
SMS will not be received on the US network from unregistered phone numbers. Each customer must register. This process takes some time, as it requires the TCR to review, validate and register your business information.
If you need SMS today
As a temporary workaround, you can create a toll Toll Free number and register it as Toll Free numbers are far less likely to be filtered.
There are limitations to Toll free numbers that are important to note.
- This will not be a good solution for a marketing use case
- You can send up to 500 outbound SMS segments
Toll Free Instructions are available under: Messaging Compliance Requirements and Good Practices
Other helpful materials
- Guide on Registration form: A2P10DLC Form - Field Details
- A2P 10DLC - Campaigns, Trust Scores, and Rate Limits
- A2P 10DLC - Understand How to Send Messages to US Phone Numbers with Local Messaging Restrictions
- Special note on Toll Free numbers: Messaging Compliance for Toll-Free US/Canada Numbers
If you require assistance or help in registering numbers, please contact our Porting team with the following link: Submit a Porting Service Request