Page plus,
cricket,
Selectel wireless,
Talk For Goodare all confirmed to be flashable to use with this companys. All but Cricket primarily use Verizon anyway and Cricket more often on sprint
Personally, I haven't found anything better than
pageplus for price and data allowance,,,,,But Selectel and talk for good could possible get better signal without roaming (charges) since they have Verizon Partners (sprint, us cellular, MetroPCS, Cricket and some others towers without roaming (charges), but then again i have yet to not have signal or had to roam (and get charged for it)...so it could be different for you if by chance your home is not in range of verizon owned tower
It would be nice, but No One has broken the us carrier gsm lock on our Razr, otherwise we could practically use it for any carrier...but for now only outside us carriers work with the gsm radio so at least we do own a world phone.:icon_ lala:
All except cricket uses the verizon network and possibly their partners (when needed), cricket uses there own and sprint's networks usually when roaming
Needles to say ALL of these choices cost usually 50-80% less than paying Verizon directly:icon_ banana: There are other MVNOs that use Verizon's network but only work with there small list of phones. One example of this is Straight Talk
One more edit: they actually have had success fixing
VZW XT907/926 RAZR M/HD to work with US GSM carriers(AT&T and T-Mobile etc.) hopefully somebody gets the xt912 working soon
As is stands here is the only current work in progress for getting our razr 912 to work with us gsm carriersAT&T and T-Mobile etc.)
Work In Progress* XT912 UnLock Discussion
http://forum.xda-developers.com/showthread.php?t=2144335