Recently, the major U.S. operators became more stringent with the filtering of A2P (Application to Person) SMS via long codes. Therefore, all existing long codes are now required to register as one of the following:
To help ensure continuous delivery of SMS, please complete the “10 DLC Registration” form at the button above. Once the completed form is received, our teams will begin the registration process with the operators on your behalf. The registration time may vary depending on the campaign.
For more information you can read the “10DLC QA” or see the comparison chart below. We greatly appreciate your cooperation and assistance throughout this process.
10DLCs, Toll free and dedicated short code numbers compared
Sender ID Features
Handset Delivery Receipts Support
Minimum Lease Term
Format10-digit phone number
ThroughputDetermined by “reputation” score in The Campaign Registry (brand + campaign type)
Use CaseOTP, ARN, MKT
Handset Delivery Receipts SupportNo
Voice SupportInboud: 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)
Toll free numbers (TFNs) are telephone numbers with distinct three-digit codes (800, 888, 877, 866, 855, 844 and 833). Toll free numbers are particularly common for customer-service calling. They can also be used to send text messages to toll free numbers, so long as those numbers are "text enabled," and businesses can send texts in response.
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.
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.
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.
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).