Not sure. I know in my case I had my iPad active on tmobile (it is a tmobile iPad). Then I tricked Verizon with the IMEI provided above to activate a new SIM and now it all works good.
Didn't work completely for me . I used the IEMI number from this thread and was able to order a sim over the phone from Verizon (1GB $20) . I put the sim in my rMini and connected to Verizon and was able to use the LTE. I then went to settings -> view account and it gave me a "Cannot Activate Your iPad" message. I called the Verizon activation phone number and was told the sim is activated and that I needed to access account settings via my device. After that failed, I attempted to go to verizonwireless.com to see what I could do. I don't have an account there so I tried to make one.
They ask you
1) Phone number -> got it from sim.
2) Device type -> clicked on tablet.
3) IEMI to see if you qualify -> used the one from this thread.
4) 20 digit code from the sim card -> entered it.
5) Plan type -> clicked prepaid
Finally got to the registration page for a new account.
I filled in everything, hit the submit button, and nothing happened.
I switched browsers and the same thing happened (i.e. nothing).
Did all of you who got it working already have a Verizon wireless plan for some other device (phone etc.) ?