NumberBarn

Here is my Experience with NumberBarn

I ported my phone numbers in to NumberBarn.com for $2 per month.  They will work very hard to get the numbers ported into their system.  You have to start the process in chat, but they are very responsive. I did this so I could test multiple sub carriers without risking my actual phone number. 

Red pocket will also port numbers, but I had no direct way to do this from Verizon since I was on a month to month plan, and I read about many horror stories about losing your number when trying to switch carriers.   This is why I started with Number barn.  Number barn has a full phone package and forwarding. 

I would try to get your abandoned number ported into NumberBarn, and from there you can port it into any carrier you like.  I ended up moving my phone number into Google so I could have good support on Android, and just taking a new number with Red Pocket.  This keeps my real number portable to any device, and I can add and drop phone plans as needed. 

It cost me $20 to port the number into Number Barn, as well as another $20 to port it again into Google Voice.  Once the number is in Google Voice, the Service is free.  Red pocket is $2 per month for parking with Text, and each other service comes at a cost.