Fifty years ago this week, the U.S. Postal Service rolled out ZIP codes in an effort to make it easier to sort a surge in post-war mail. The humble addition of five digits to every address in the ...

The five-digit numbers for letters and parcels to the city districts range from ZIP code 80331 to ZIP code 81929. In Munich, the individual city districts also have several postal codes. Major ...

Psst, your ZIP code is telling all your secrets. In fact, so much is hidden in that short string of digits at the end of your address – we're talking pride, discrimination and marketing gold. Starting ...

Well, we’re just zipping right through this series, no? So far we’ve looked at various postal machines and how they work to flip mail around, cancel the postage, and sort it, all in a matter of ...