Lady called from 202-693-9998 at 11:26 am on 5/16/17 claiming she got a call from my number. I said my phone didn't call anyone and asked when. She said "10 min ago". She tried to verify my number but I have been warned about replying with "YES" to strange phone calls. So I explained that I didn't call from my phone (It was in front of me playing a music app). She said "yes you did" and hung up. Strange call but still not sure what it was about.