When RFC 6346 was published in 2011, the idea of addressing the IPv4 address exhaustion problem using Address+Port sharing was new and untried, and so it was published as experimental.   In the intervening years, several mechanisms for deploying A+P have been documented and implemented, and are now seeing commercial deployment.

Consequently, it seems appropriate to declare the A+P experiment a success.   This proposed action moves RFC 6346 to the Standards Track, as Proposed Standard.  In order to change the boilerplate text which currently describes the document as experimental, the document will be re-released with a new RFC number, but with no changes other than the change to the boilerplate text.