A2P 10DLC (application-2-person 10 digit local code) refers to a system in the United States that allows businesses to send Application-to-Person (A2P) type messaging via standard 10-digit long code (10DLC) phone numbers. Carriers’ A2P 10DLC offerings provide better delivery quality and lower filtering risk than long code or short code SMS of the past, using the same phone numbers.
A2P 10DLC will launch on both AT&T and T-Mobile in 2021, with new registration requirements for businesses who intend to send long code messages to AT&T in the US. Starting May 1, 2021, AT&T carrier fees will also go into effect to AT&T subscribers. T-Mobile’s carrier fees for both registered and unregistered traffic will begin June 1, 2021. Verizon previously launched their own A2P 10DLC solution in early 2019 and is not impacted by these new changes.
A long story as short as possible, it means that consumers in the US and throughout the world are growing VERY frustrated and angry with SMS spamming. There are governmental and regulatory pressures on the mobile carriers to identify and prevent unwanted spam messages. So the mobile carriers got together and said to themselves:
"We better start to police ourselves before governments step in and police us."
And voila, A2P is born. So the fortunate part of this story is that the carriers are ready to police the bad actors in the SMS marketing space (will they really enforce it?) The unfortunate part of the story is that the average agency will see a 30-50% increase in SMS and MMS costs.
"All Systems for One, One Systems for All."