I have a Samsung x426 with a pre merger AT&T wireless plan. I purchased this in 8/04. My phone was dropped and died. We will possibly change to a different service provider next August so we have a more suitable plan for 2 kids away at college out of state. My sim card is intact. How can I purchase a replacement phone without paying a fortune or buying a new plan. I see phones for sale on eBay but I don't know what I need to look for to be sure that I can use it if I buy it. Also does the sim card retain my current phone number so that a different phone just needs the sim card and will work like my old one as far as my phone book numbers saved and what my personal cell phone muber is?

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