Who called from 2136200052

i want to find out who call me............and why

got a call 11/10 @ 11:11 from a caller id showing IRS ?

I just got a call from this number and they left a voicemail.  It was someone claiming to be from the IRS returning my call.  I never called the IRS so either they had the wrong number or it's a scam of sorts.

We got a call form this number today, March 18, 2010. We were gone and no message was left. I have tried repeately to call the number and it is busy. Caller ID said it was from the IRS. Please let us know if there is any recourse with this.

Thanks

Also received calls from this bogus number..who is it?