10DLC registration

If you use AWS End User Messaging SMS to send messages to recipients in the United States or the US territories of Puerto Rico, US Virgin Islands, Guam and American Samoa, you can use 10DLC phone numbers to deliver those messages. The abbreviation 10DLC stands for "10-digit long code." A 10DLC phone number is registered for use by a single sender and for a single use case. This registration process gives the mobile carriers insight into the approved use cases for each phone number that is used to send messages. As a result, 10DLC phone numbers can offer high throughput and deliverability rates.

A message that you send from a 10DLC phone number appears on the devices of your recipients as a 10-digit phone number. You can use 10DLC phone numbers to send both transactional and promotional messages. If you already use short codes or toll-free numbers to send your messages, then you don't need to set up 10DLC.

To set up 10DLC, you first register your company or brand. Next, you create a 10DLC campaign, which is a description of your use case. This information is then shared with the Campaign Registry, an industry organization that collects 10DLC registration information.

After your company and 10DLC campaign are approved, you can purchase a phone number and associate it with your 10DLC campaign. Associating a phone number with a 10DLC campaign can take approximately 14 days to complete. Although you can associate multiple phone numbers with a single campaign, you can't use the same phone number across multiple 10DLC campaigns. For each 10DLC campaign that you create, you must have at least one unique phone number. Throughput for 10DLC phone numbers is based on the company and campaign registration information that you provide. Associating multiple phone numbers with a 10DLC campaign doesn't provide any additional throughput.

If you have an existing unregistered long code in your AWS End User Messaging SMS account, you can request that it be converted to a 10DLC number. To convert an existing long code, complete the registration process, and then create a case in the AWS Support Center. In some situations, it isn't possible to convert an unregistered long code to a 10DLC phone number. In this case, you must request a new number through the AWS End User Messaging SMS console and associate it with your 10DLC campaign. For more information about using 10DLC with existing long codes, see Associating a long code with a 10DLC campaign.

10DLC capabilities

The capabilities of 10DLC phone numbers depend on which mobile carriers your recipients use. AT&T provides a limit on the number of message parts that can be sent each minute for each campaign. T-Mobile provides a daily limit of messages that can be sent for each company, with no limit on the number of message parts that can be sent per minute. Verizon hasn't published throughput limits, but uses a filtering system for 10DLC that is designed to remove spam, unsolicited messages, and abusive content, with less emphasis on the actual message throughput.

New 10DLC campaigns that are associated with unvetted companies can send 75 message parts per minute to recipients who use AT&T, and 2,000 messages per day to recipients who use T-Mobile. The company limit is shared across all of your 10DLC campaigns. For example, if you have registered one company and two campaigns, the daily allotment of 2,000 messages to T-Mobile customers is shared across those campaigns. Similarly, if you register the same company in more than one AWS account, the daily allotment is shared across those accounts.

If your throughput needs exceed these limits, you can request that your company registration be vetted. When you vet your company registration, a third-party verification provider analyzes your company details. The verification provider then provides a vetting score, which determines the capabilities of your 10DLC campaigns. There is a one-time charge for the vetting service. For more information, see 10DLC brand vetting form.

Your actual throughput rate will vary depending on various factors, such as whether or not your company has been vetted, your campaign types, and your vetting score. The following flowchart shows the throughput rates for various situations.

Throughput rates for 10DLC are determined by the US mobile carriers in cooperation with the Campaign Registry. Neither AWS End User Messaging SMS nor any other SMS sending service can increase 10DLC throughput beyond these rates. If you need high throughput rates and high deliverability rates across all US carriers, we recommend that you use a short code.

10DLC registration and monthly fees

There are registration and monthly fees associated with using 10DLC, such as registering your company and 10DLC campaign. These are separate from any other monthly or AWS fees. For more information about 10DLC fees, see the AWS End User Messaging Pricing page.