Does Anyone know the RM Of A Big Lumia? (1620,1820 Or 2520)

I Have a Lumia 630, I Use The RM Of Lumia 1520 (RM-937_1000) To Have More Live Titles/Quick Action Buttons , But I Want To Use The RM Of Lumia 1620, 1820 Or 2520!.
Anyone know which is The RM?