This is the natural history museum in Los Angeles. I use to have a membership so they call to get me to sign up again. This might be the case as to why they "might" be calling others?

Thank you!

I, too, having been getting a call from this number every night for the last two weeks.  They never leave a message and when I return the call there's a busy signal.  If it's The Natural History Museum, that makes sense since I used to be a member.

It's definitely the NHM. I called back and got a recorded message.

I spoke to a rep from the natural history museum. We were members and they want us back.