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> As long as the data is broken down by zip code ZIP+4 solves this to some extent, if anybody bothered to actually use it.
by jwestbury 4y ago
> As long as the data is broken down by zip code
ZIP+4 solves this to some extent, if anybody bothered to actually use it.
- bluGill 4y agoThe post office changes the +4 numbers ever few months. Those who use ZIP+4 get a discount in their postage rates, but they are required to update their address database on a regular basis. For most of us though ZIP+4 is completely impractical to use and there is no advantage so we don't use it.