Called my cell, I answered, it was a reording about "my prperty".

Called my unlisted cell phone .. Since it can't be anybody I know, it's gotto be spam

Received call but no message. Most likely telemarketer. Seems like my phone goes through periods of receiving a lot of these random telemarketer calls. I have simply created an entry in my phone's address book with "Do Not Answer" as the listing. Whenever I receive a call from another one of these number I just add it to that listing. At the rate I am adding new numbers, I may have to create another listing soon.

Have been getting calls from this number and when we try to answer they just hang up and they never leave a message

Missed a call and no message left. This is why I never answer unknown phone numbers.