A
+23 Attapeu
+23
B
+25 Bokeo Province
+25
+20 Bolikhamsai Province
+20
C
+25 Champasak Province
+25
H
+13 Houaphanh Province
+13
K
+17 Khammouane Province
+17
L
+18 Luang Namtha
+18
+23 Luang Phrabang
+23
O
+16 Oudomxay Province
+16
P
+14 Phongsaly
+14
S
+22 Sainyabuli
+22
+25 Salavan
+25
S
+22 Savannakhet
+22
+22 Sekong
+22
V
+13 Vientiane (airport)
+13
+20 Vientiane Province
+20
X
+16 Xiangkhouang Province
+16