Gjennomsnittlig GPS-koordinater for postnummer 21451: 2.077, 99.861
Notering byer:
>> Rantau Selatan 21451, North Sumatra, Labuhan Batu, GPS-koordinater: 2.06324,99.87757
>> Rantau Utara 21451, North Sumatra, Labuhan Batu, GPS-koordinater: 2.09026,99.84363
Notering byer:
>> Rantau Selatan 21451, North Sumatra, Labuhan Batu, GPS-koordinater: 2.06324,99.87757
>> Rantau Utara 21451, North Sumatra, Labuhan Batu, GPS-koordinater: 2.09026,99.84363