I got sick of searching and making lists and searching more whenever I wanted to make another change on my mod - so I sat down and made a Spreadsheet.
All 1741 provinces are listed - some a few times. Each Core is a separate line to better filter. I added everything I thought I would want when grouping provinces. Finally, I grouped everything into regions to further help me find things.
It's based on an unmodded NA.
I hope y'all find it useful too. So download, mod, have fun, and if you find any fat fingered typos, please let me know so I can correct my copy.
Download it here.