Hi,

i'm not sure I understeand the question. If there are 87 zip codes and you mail to 20 of them then there are 67 not reached. Or did I not understeand right ?

If you want to scan for zipcodes (or any other Location object) then you just scan the map in points with equal distance to each other. See 'snap to road' aritcle to know what I mean.

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rgds, Wilfried Mestdagh
www.mestdagh.biz
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