Why am I getting calls from unknown numbers on my phone?

[AC Question]

I have a refurbished Samsung Galaxy III with Freedompop. The phone was previously with Sprint. Settings on the phone show a sprint number, etc. I did a complete reboot before activating my account with FreedomPop, but I am getting 4-5 calls a day for another person. I am assuming this is a carrier issue? But FreedomPop or Sprint? Thanks for all your advice /help in advance.

 

[Golfdriver97]

Welcome to the forums. You can have those numbers blocked, either on the phone or by the carrier.

 

[mazebo]

I had the same problem with a refurbished phone, but for me it was enough just to inform the people calling that the previous owner wasn't available at this number anymore. Took, say 6 months, then the calls stopped.