The Pre3 models were filed using HP numbering conventions, unlike the Veer and all prior Palm devices...
The North American GSM Pre3 has an FCC ID of B94-HHF30CN.
(Almost certainly bound for AT&T.)
The CDMA and global GSM Pre3 has an FCC ID of B94-HHF30CV.
(Could be fully-functional on either Verizon or Sprint.)
So a quick tour down geek memory lane...
Look at one of the last pre-Palm smartphones from HP, the iPAQ 900, which carried an FCC ID of B94-HHI18C. Notice there is no "N" on the end, unlike with the AT&T Pre3 listed above. If I had to guess, I'd say that's because it supported a "non-North American" HSDPA band, in addition to the North American bands. If it had only supported the North American bands, I'd hazard a guess that it would have been numbered B94-HHI18CN.
Another couple of iPAQ devices, marketed as the iPAQ Voice Messenger, ran through the FCC with very similar numbering: B94-HHF20C and B94-HHF20C85. The only difference is that the former was only tested for GSM at 850 MHz (for carriers other than AT&T), while the latter was also tested for the UMTS at 850 MHz (for AT&T).
I don't recall there ever being a single iPAQ or Jornada device that utilized CDMA, so I'm not sure there's any way of knowing how HP would "number" a Sprint or Verizon device. There have been a few HTC devices that had a "CV" suffix that were actually designed to run on T-Mobile here in the United States and supported UMA. Obviously that isn't the case here, but maybe it's just an innocuous letter?
All that to say, who the heck knows (outside of HP and Sprint or Verizon)... I hope that "V" doesn't necessarily mean "Verizon Wireless," but perhaps that's just wishful thinking on my part?