Average GPS coordinates for Tan Sum Postcode location: 15.383, 105.117. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Tan Sum on map:

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Listing cities & postcodes (1):
>> Na Tan, 34330 Tan Sum, GPS coordinates: 15.3833,105.1167