I received an advertisement from T-Mobile in the mail today where they must have gotten my data from some website that forced me to fill out personal information
this post was submitted on 04 Apr 2026
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Surely the last 4 digits don't point to an exact house. I'm fairly certain my zip code has more than 9999 houses. It does seem like it would get you pretty close though.
Zip+four is only down the the block level, you need 2 more digits (zip+6) to uniquely identify every possible address in the US. That said, a 9 digit barcode is way too close to a full address for most people to be comfortable with sharing online.
I suppose I grew up semirural, so growing up, my zip plus 4 identified my single house. Good to know that's not thexactly the case all the time. Still, pretty identifying.
It narrows it down to a delivery truck at least.