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In some cases, your zip+4 is uniquely your address, too. My townhouse was a new development and after complaining for over a year that I wasn't able to sign up
by mynameisvlad 2y ago
In some cases, your zip+4 is uniquely your address, too. My townhouse was a new development and after complaining for over a year that I wasn't able to sign up for Informed Delivery, I was assigned a new unused +4.
That said, most people don't use the +4 when getting directions or the like, it's just used for postal service.
- rootusrootus 2y ago> it's just used for postal service Even then, to my understanding the USPS has for some time now not relied on zip codes at all. They have a really good address database, they match on that, and then stamp the mail with a routing barcode at the origin post office. The zip code is extra, mail flows just fine if you leave it off.