This HTC Droid DNA is exclusively for Verizon.
But it is indeed the unlocked version
It supports -
CDMA1x/EV-DO Rev A, LTE/DO Rx
GSM (850MHz, 900MHz, 1800MHz, 1900MHz)
UMTS (850MHz, 900MHz, 1900MHz, 2100MHz).
MOD EDIT: inserted real source
Source
But it is indeed the unlocked version
It supports -
CDMA1x/EV-DO Rev A, LTE/DO Rx
GSM (850MHz, 900MHz, 1800MHz, 1900MHz)
UMTS (850MHz, 900MHz, 1900MHz, 2100MHz).
MOD EDIT: inserted real source
Source