i will have the 6s plus on sprint but I'm not very pleased with the service only the price of my bill can I take this exact phone and activate it on Verizon's network? Because they're both CDMA, am I right?
If the phone is paid in full, yes. Verizon will allow iPhones and the nexus 6 to be activated on their network now, even if the phone is not the verizon or SIM free one.