10-digit long code, or 10DLC, is the standard format for phone numbers in the United States. Your business phone number follows the 10DLC format. A2P stands for application-to-person texting. If you send text messages from your practice to patients using a service like Patient Engage, Demandforce, Lighthouse 360, Sesame Communications, or Dentrix Ascend, you are using application-to-person texting with a 10DLC phone number. To reduce texting spam, carriers have adopted a registration requirement for 10DLC business phone numbers.  

If you do not register your 10DLC number, you will no longer be able to send text messages to your patients. 

If you send text messages from your business to your patients, yes, you are affected.

Henry Schein One can help you complete the required 10DLC registration process if you use any of these patient communication tools:

 • Patient Engage 

 • Demandforce 

 • Lighthouse 360 

 • Sesame Communications

 • Dentrix Ascend 

 • Dentrix QuickBill Premium

You should resubmit your registration as soon as possible. Registration verification can take several weeks. All text from unregistered numbers will be blocked on August 31, 2023.

To register for 10DLC, you must provide your legal business information. This information includes: 

 • Legal Business Name: This must match the name on your IRS tax filing paperwork EXACTLY.
 • Company contact details: Contact information for a practice representative.
 • EIN: This is the IRS employer identification number for your practice. This can also be known as a Tax ID number.
 • Business Entity Type: Indicate the type of business you operate. You will be able to select from a list.
 • Company Type: Indicate whether you are a public, private, or government company.