What does it means 9 p in a SSN?

In the context of a Social Security Number (SSN), "9 p" typically refers to the format of the SSN, which consists of nine digits grouped as "AAA-GG-SSSS." The "9" can denote a particular type of SSN, such as those issued to non-citizens or specific categories of individuals, while "p" might refer to a specific context or classification related to that number. However, without additional context, it's unclear what "p" specifically signifies.