Gjennomsnittlig GPS-koordinater for postnummer 20916: 3.412, 99.043
Notering byer:
>> Sei Rejo 20916, North Sumatra, Serdang Bedagai, GPS-koordinater: 3.41199,99.04283
Notering byer:
>> Sei Rejo 20916, North Sumatra, Serdang Bedagai, GPS-koordinater: 3.41199,99.04283