Who called from 9723720115

This is not a National Rifle Association number.  This is some kind of a scammer falsely using that recording.

Caller ID shows NRA.  Didn't answer.  My phone message states leave a message.  Must not be important or they are robocalls, etc.

Has been calling for the last 6mnths. Says NRA. I've added them to the auto reject list and they're still fathfully calling. Wish I knew how to make this stop

Calls me numerous times, never leaves message. Totally annoying since I'm on do not call list.

If they're calling you on a cell phone, look for Extreme Callblock app.  Has a logo that's a blue shield with a white cross on it.  It works great.