Over the last few years, registering 10-digit long codes (10DLC) has become the norm for any organization intending to send texts in the US and Canada. This article will explore the fundamentals of 10DLC, from definition to benefits and more.
What is 10DLC?
10DLC, also known as a 10-digit long code, 10-digit local number, or just a local number, are phone numbers used by businesses to send SMS and MMS. To own and use these types of numbers, you need to receive approval from mobile network operators for A2P messaging.
Businesses can get their 10DLC numbers approved by registering them with the Campaign Registry alongside a certified brand and campaign. Unlike short codes, which are typically 5 to 6 digits long and shared among multiple businesses, a 10DLC number is unique to each company.
A2P 10DLC vs toll free vs short codes
10DLC numbers are quickly becoming the standard, while U.S. carriers and companies alike are phasing out short codes. Compliance is the main reason for this.
In addition, they make the opt-in and opt-out process difficult due to the keywords being shared on top of the number. Therefore, more and more brands are transitioning towards 10DLC and toll-free numbers.
There are several key differences between 10DLC phone numbers and the two other business texting alternatives: shared short codes and toll-free numbers. We’ve detailed the main ones in the table below.
Features | A2P 10DLC numbers | Shared short codes | Toll-free numbers |
---|---|---|---|
Usage | Two-way business messaging | Large scale SMS marketing initiatives | Customer support and bulk SMS campaigns |
Throughput | Low to moderate (~10 msgs/sec) | Very high (~500+ msgs/sec) | Moderate (~50 msgs/sec) |
Deliverability | High, due to carrier trust and registration | High, but shared codes risk blocking | High, when the brand is well-known |
Personalization | High, appears as a regular phone number | Low, with short and non-standard numbers | Moderate, recognized as toll-free but customizable |
Localization | Yes (local numbers) | No (generic numbers) | Somewhat (national presence) |
Compliance | High, with strict guidelines | High, with strict guidelines | Moderate, as guidelines may vary |
Setup time | Long (up to 5 weeks) | Long (up to 8 weeks) | Short (up to 48 hours but subject to verification) |
Cost | Moderate (~$10-15 per month plus registration fees) | Very high (~$500 – $1,000 per month) | Low (~$10-15 per month plus incoming messages) |