What is the difference between A2P and P2P traffic?


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


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.

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