A
+25 Attapeu
+25
B
+16 Bokeo Province
+16
+23 Bolikhamsai Province
+23
C
+32 Champasak Province
+32
H
+14 Houaphanh Province
+14
K
+23 Khammouane Province
+23
L
+23 Luang Namtha
+23
+36 Luang Phrabang
+36
O
+14 Oudomxay Province
+14
P
+18 Phongsaly
+18
S
+31 Sainyabuli
+31
+26 Salavan
+26
S
+33 Savannakhet
+33
+24 Sekong
+24
V
+25 Vientiane (airport)
+25
+21 Vientiane Province
+21
X
+14 Xiangkhouang Province
+14