Can you use and unlocked cell phone with a monthly plan from other companies not prepaid plans.
Yes, as long as the carrier you choose uses the same technology as your cell phone. This is mainly an issue in the US & Canada. For example, you can’t use a GSM phone (AT&T, T-Mobile) on a CDMA network (Verizon, Sprint) or vice versa.
Some carriers (T-Mo in US) will offer you a less expensive plan for the same features or more features for the money. Most don’t give you a break but at least you don’t need to sign a contract!