What is the difference between A2P and P2P traffic?

Question

  • What is A2P SMS?
  • What is P2P SMS?
  • How can I determine if my traffic is A2P?

Answer

A2P refers to application to person messages (an app, alert, 2FA, etc.) and are generally related to a "transaction". The assumption is that an A2P SMS was generated via a software application.

P2P refers to person to person messages (a person sends a message to another person). The nature of this traffic would resemble a conversation or dialogue, rather than being related to any transaction.

You can find more information related to A2P and P2P usage in the United States and Canada here.

Have more questions? Submit a request