How do switch my phone number to a different iphone?

I have a white iphone (current phone) but i want the switch it to the black iphone.

I have verizon.

Do i need to go to the store to do it or can i do it over the phone?

Added (1). They are both iphone 4s

You remove the sim card from your present phone and put it in the new phone. You need a sim card removal tool, which looks exactly like a paper clip.

Illustrated instructions: https://www.google.com/...rd+removal

If you are the Account Holder or an Account Manager you can call 1-800-922-0204 and they will perform the switch. Make the call from a different phone than the 2 you are dealing with. If you call from another Verizon cell phone you can just call *611, otherwise use the 800 #.It is a fairly quick and painless process.

Ignore the poster above. Swapping SIM cards will not work with Verizon phones.

Yeah… Don't listen to SmartAZ. Just call Verizon's customer and they will switch for you over the phone.