Average GPS coordinates for Und Postcode location: 47.483, 16.7. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Und on map:

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Listing cities & postcodes (1):
>> Győr-Moson-Sopron megye, 9464 Und, GPS coordinates: 47.4833,16.7