B
+27 Bougainville
+27
C
+26 Central Province
+26
E
East New Britain
+28 Eastern Highlands
+28
F
+28 Fly
+28
G
+32 Gulf
+32
M
+32 Madang
+32
+32 Morobe
+32
N
+26 National Capital District
+26
New Ireland
O
+26 Oro
+26
S
+25 Sandaun (West Sepik)
+25