The TG routes I've flown (R/T unless otherwise indicated) are as follows:

Current international TG destinations from BKK
AKL
BLR
BOM
CDG
DEL
DME
DPS
FCO
FRA
FUK
HAN
HKG
HYD
ICN (nonstop and 2 routes with stop)
KIX
KTM
KUL
LAX
LHR
MAA
MAD
MEL
MNL
MUC
NGO
NRT
PEN
PNH
PUS
PVG
SGN
SIN
SYD
TPE (nonstop and with stop)
VTE
ZRH

Current international TG routes not from BKK
HKG-ICN
HKG-TPE
ICN-TPE

Discontinued international TG routes
BKK-GMP (SEL before ICN was opened)
BKK-JFK
BKK-JNB
LAX-GMP

Current domestic TG destinations from BKK
CEI
CNX
HDY
HKT
KBV
KKC
PHS
UBP
URT
UTH

Current domestic TG routes not from BKK
CNX-HGN
CNX-HKT (O.W.)

Discontinued domestic TG routes
DMK-CEI
DMK-CNX
DMK-HDY
DMK-HKT
DMK-KKC
DMK-PHS
DMK-UBP
DMK-URT
DMK-UTH