I got a call from this #206-823-3351 twice today 05-24-2016 I didn't answer and they didn't leave a message The second time they left a message stating they have a case filed an for me to call 206-823-3351
I called the number and some guy answered. He sounded like he was from India and is probably trying to scam for money. IRS will contact you through the mail.
I called back three times using my Skype phone. Each time a different person speaking a foreign language answered. They sounded Oriental to me, but I'm not quite sure. One was a woman. The last one identified himself as officer Carl ( or some name ) and said he was with the IRS investigating department. I knew it was a scam so I played the game for a minute or two and finally told him to find another line of work as this one is not working out for him.