Gjennomsnittlig GPS-koordinater for postnummer 21323: 3.041, 99.821
Notering byer:
>> Sejahtera 21323, North Sumatra, Tanjung Balai, GPS-koordinater: 3.04113,99.82117
Notering byer:
>> Sejahtera 21323, North Sumatra, Tanjung Balai, GPS-koordinater: 3.04113,99.82117