Gjennomsnittlig GPS-koordinater for postnummer 21271: 3.404, 99.313
Notering byer:
>> Simpang Empat 21271, North Sumatra, Asahan, GPS-koordinater: 3.40413,99.31253
Notering byer:
>> Simpang Empat 21271, North Sumatra, Asahan, GPS-koordinater: 3.40413,99.31253