Hey @BillG,
Thanks for the link! Apparently, as suggested by multiple online sources, the breached NPD data is old.
In my case, the data includes an incorrect birthday, the most recent address is out of date by 20 years and my childhood telephone number (childhood for me was a long time ago). The linked site masks all but the last two digits (which are accurate) of my SSN.
Anyway, AT&T is already paying for me to have credit monitoring due to their data breach, so I’ll just keep an eye out there.