called yesterday at 7:41p with no voice message left

Keeps on calling me !!! Everyday and I'm sick of it

May be spam

keeps calling and leaves no message at all. Who is this?????? Guess a scam of some kind!!

Oddly, received a text-message-to-email from this number that just says "What's up?" today at 3:16 PM EST.

The email contains a little additional info through the phone company (came via Bell Canada which I don't even use for service myself, so they didn't get my information via that route) and noted with "This message was sent from a Bell mobile phone."  There's also additional info in it that says the routing country of the original message came from country dialling code +48 which is Poland.  I definitely don't know anyone in Poland, so if I had to guess, I'd say this was a wiped and unlocked phone being used for spam or a scam.