A
+31 Attapeu
+31
B
+33 Bokeo Province
+33
+27 Bolikhamsai Province
+27
C
+32 Champasak Province
+32
H
+28 Houaphanh Province
+28
K
+25 Khammouane Province
+25
L
+29 Luang Namtha
+29
+34 Luang Phrabang
+34
O
+28 Oudomxay Province
+28
P
+23 Phongsaly
+23
S
+30 Sainyabuli
+30
+31 Salavan
+31
S
+30 Savannakhet
+30
+26 Sekong
+26
V
+27 Vientiane (airport)
+27
+29 Vientiane Province
+29
X
+23 Xiangkhouang Province
+23