Got a missed call from 314-533-1512 who left no message. Called back and heard the "internet connection whistle" the kind produced by AOL dial-up internet from 15 years ago. Hung up and researched the number - turns out it is Psychic Hotline in St.Louis.
Got a call from this number on my cell. My phone will display caller ID if the caller has it, and the name associated was "KIMMEL CENER". Those familiar with Philly will know that the Kimmel Center is a large performing arts center in Center City. But I checked and that isn't the Kimmel's number so I have no idea why this was displayed.
I called back and it rang for a long time and then also gave off a series of unintelligible whistles and clicks, but it almost sounded more like the phone was in someone's pocket.