Gjennomsnittlig GPS-koordinater for postnummer 20915: 3.412, 99.043
Notering byer:
>> Sei Rampah 20915, North Sumatra, Serdang Bedagai, GPS-koordinater: 3.41194,99.04277
Notering byer:
>> Sei Rampah 20915, North Sumatra, Serdang Bedagai, GPS-koordinater: 3.41194,99.04277