Can you have a phone from one company and have another company's plan?

please tell me about of cell phones costs and what is that company i want cell within 140$. tell me in this money what company displayd more benfits. thank you. iam ivan jay iam from india and am 17years old.

I'm with the prepaid company straight talk. My 30 day plan for this month ends in 9 days. The last day of this month's plan ends Sunday 4/15; however, I've noticed that they don't actually cut your service for the month until the end of the following...

I want the plan to include 2 lines. Meaning two people share the same plan. Unlimited text messaging and mobile to mobile. Please DO NOT give me the websites to these plans. I want to know from you why you think this phone company is better than another...

My sis lost her phone I'm geussing some one has it but is it possible if your phone company can find out where ur phone is if the DATA is off? Phone: IPhone 4 Company: Rogers.

I currently have a Motorola V500 phone and my carrier is Cingular. I found a deal online that lets me get a free Motorola RAZR with a new activation of a 2 year contract. The 2 year contract I have now, is about to expire, so I need a new one anyway...

I know there are prepackaged phones with plans, and also there are plans in which seperate phones could be used with. I'm basically looking for most minutes that rollover and dont expire quickly, also with inexpensive text messeging. Just very basic...

I will arrive to Israel in October 2010 and i will live there for at least two years. I want to get an Iphone 4 (I know it will be available until mid-September) or Blackberry with unlimited data transfer. I know there are three companies in Israel,...