A
+31 Attapeu
+31
B
+28 Bokeo Province
+28
+29 Bolikhamsai Province
+29
C
+28 Champasak Province
+28
H
+22 Houaphanh Province
+22
K
+26 Khammouane Province
+26
L
+23 Luang Namtha
+23
+25 Luang Phrabang
+25
O
+24 Oudomxay Province
+24
P
+21 Phongsaly
+21
S
+35 Sainyabuli
+35
+26 Salavan
+26
S
+27 Savannakhet
+27
+25 Sekong
+25
V
+25 Vientiane (airport)
+25
+30 Vientiane Province
+30
X
+23 Xiangkhouang Province
+23