Good info for those with unlimited data plans:
“OK 1st off let me make the disclaimer that I take no responsibility if this fails to work for you. Under Verizon you are 100% allowed to transfer your service to another individual, referred to as an Assumption of Liability (AOL), you can find it on the Verizon website.
With that said, I will now tell you how I was able to transfer my phone number I’ve had for 15+ years to a new provider and sell my existing unlimited data contract and make some money instead of pay hundreds in ETFs.
First thing you need to do is sign up for service with whatever new provider you want (I am assuming you are reading this b/c you want to leave Verizon and already have a new provider in mind). When you sign up for new service with another carrier it is VERY important you DO NOT port your existing Verizon number over. Porting the number over at this point will cancel your Verizon contract and you will be stuck paying the ETF.
OK so now that you have your new service with some new phone numbers, you will need to port your existing Verizon number over. To do this, call your new carrier and tell them you want to port your Verizon number over to the new service. You will need the number you are porting and the Verizon account number along with your account PIN (not your myverizon.com password, but your PIN can be found in your myverizon profile). Once your new service rep has told you the number has been ported, log into myverizon and request a new number on your Verizon phone. I’d say this step should be done about 15-30 minutes after you port your Verizon number.
While the number is being ported and your new Verizon number is being issued you will have some overlap with the devices and the numbers. For instance, if someone calls you on your new number it may ring on the new service, but you may not be able to make outgoing calls with the new service. They say the port takes about 24-48 hours for the number to fully port over to the new service, but mine was done in less than 24 hours. I was basically carrying around two phones with me until the port was completed.
OK so now that you have your number ported over to your new line of service you can sell your unlimited data Verizon account (non-unlimited data accounts are pretty worthless and I doubt you’d be able to find someone to buy it). I used eBay to do this, but there are other services like cellswapper.com. If you use eBay, search for Verizon unlimited data contract to get an idea of what your listing should consist of.
My Verizon contract consisted of an unlimited data line and a 2gig data line. I made it very clear in the listing that the winning bidder would be required to take both lines of service. I didn’t get as much money, but still better than paying an ETF.
OK so now you listed your contract online and you have a winning bidder. Hopefully, the bidder has paid immediately. So what you need to do is call Verizon and tell them you want to do an AOL and give them the phone number and the name of the winning bidder. I recommend calling the bidder and and going over the details of the steps and when they want to initiate the transfer. Once Verizon has the persons info, they will need to contact Verizon and assume ownership of the contract. If they have Verizon service already its easy, but if its new customer they will have to go through a credit check to make sure they can carry the service. Assuming they are approved for service, once they call Verizon the lines will be transferred. You will receive an email saying the transfer was in progress, but you can also confirm it went though by trying to log in to your online Verizon account (it should lock within a couple hours after the transfer. The transfer of service takes about a day or so to fully complete. Any balance on the account will be billed to or if its a credit it will get refunded to you.
There you go. You keep your original numbers, get out of your Verizon contract, and make some money.
I think I covered everything, but I recommend you read up on the AOL on Verizon’s website. If you have any questions, feel free to post them. I wrote this pretty quick so if something doesn’t make sense or you need more clarification let me know.”
Source: http://rootzwiki.com/topic/42073-how-to-sell-verizon-contract-and-keep-your-number/