Looking for List of NBIB "regional" offices?

I’ve seen these so called regional field offices mentioned but I have not found a list of them.

One article I read said that there are 86 of them.

Any help would be appreciated.

There is no publicly available listing.

@JustCurious - I’m sure you could FOIA request that info.

Thanks, I was just wondering if there was one near the area I will be working.