A
+34 Attapeu
+34
B
+31 Bokeo Province
+31
+27 Bolikhamsai Province
+27
C
+30 Champasak Province
+30
H
+20 Houaphanh Province
+20
K
+19 Khammouane Province
+19
L
+27 Luang Namtha
+27
+27 Luang Phrabang
+27
O
+25 Oudomxay Province
+25
P
+16 Phongsaly
+16
S
+31 Sainyabuli
+31
+32 Salavan
+32
S
+22 Savannakhet
+22
+24 Sekong
+24
V
+23 Vientiane (airport)
+23
+27 Vientiane Province
+27
X
+24 Xiangkhouang Province
+24