Gjennomsnittlig GPS-koordinater for postnummer 20144: 3.585, 98.676
Notering byer:
>> Gedung Johor 20144, North Sumatra, Medan, GPS-koordinater: 3.58524,98.6756
Notering byer:
>> Gedung Johor 20144, North Sumatra, Medan, GPS-koordinater: 3.58524,98.6756