A
+28 Attapeu
+28
B
+27 Bokeo Province
+27
+26 Bolikhamsai Province
+26
C
+27 Champasak Province
+27
H
+21 Houaphanh Province
+21
K
+29 Khammouane Province
+29
L
+26 Luang Namtha
+26
+27 Luang Phrabang
+27
O
+24 Oudomxay Province
+24
P
+23 Phongsaly
+23
S
+27 Sainyabuli
+27
+28 Salavan
+28
S
+29 Savannakhet
+29
+27 Sekong
+27
V
+27 Vientiane (airport)
+27
+33 Vientiane Province
+33
X
+22 Xiangkhouang Province
+22