Gjennomsnittlig GPS-koordinater for postnummer 138-840: 37.505, 127.095
Notering byer:
>> Samjeon-dong/삼전동 138-840, Seoul/서울, Songpa-gu/송파구, 104-133/104-133, GPS-koordinater: 37.50454,127.09507
Notering byer:
>> Samjeon-dong/삼전동 138-840, Seoul/서울, Songpa-gu/송파구, 104-133/104-133, GPS-koordinater: 37.50454,127.09507