Prosečne GPS koordinate za poštanski broj 9901: 53.322, 6.858
Spisak gradova:
>> Appingedam 9901, Provincie Groningen, Gemeente Appingedam, GPS koordinate: 53.3217,6.8583
Spisak gradova:
>> Appingedam 9901, Provincie Groningen, Gemeente Appingedam, GPS koordinate: 53.3217,6.8583