I don't think this is very acurate, but searching for strings inside ROMUpgradeUt.exe you can find this:
STARM404
STARM303
STARM102
STARM001
BSTAR502
BSTAR301
DATAM001
E-CHA001
DOPAS601
VODAP006
ORANG007
BRIGH405
BRIGH304
QTEKV001
TELEF301
DOPOD001
XGULB001
41430002
41430001
TELCE301
534F0001
DOPOD701
DOPOD601
XGULA001
VZW__001
VODAP405
VODAP304
VODAP203
VODAP102
VODAP001
UNICO701
T-MOB009
T-MOB008
T-MOB007
T-MOB006
T-MOB005
T-MOB004
T-MOB003
T-MOB102
T-MOB101
SPCS_001
ORANG006
ORANG005
ORANG104
ORANG203
ORANG202
ORANG001
O2ASI602
O2ASI001
O2___003
O2___102
O2___001
DANGA405
DANGA304
DANGA203
DANGA102
DANGA001
CDL__505
CDL__404
CDL__303
CDL__202
CDL__001
BRIGH203
BRIGH102
BRIGH001
56450001
54450002
54450001
53500001
48550001
43480001
42450001
41500001