Gjennomsnittlig GPS-koordinater for postnummer 103-0021: 35.688, 139.771
Notering byer:
>> Nihonbashihongokuchou 103-0021, Toukyouto, Chuuouku, GPS-koordinater: 35.6881,139.7708
Notering byer:
>> Nihonbashihongokuchou 103-0021, Toukyouto, Chuuouku, GPS-koordinater: 35.6881,139.7708