That's what they were called in Texas, too, "911 address." Before that, people who got mail delivery to their houses usually used some form of [lot number] [lo

That's what they were called in Texas, too, "911 address." Before that, people who got mail delivery to their houses usually used some form of [lot number] [locally-known street or platted subdivision]. If you owned multiple lots, you used multiple numbers. My grandparents' address was something like "10-11-12 Rocking Ranch, Middleofnowhere TX 75333." After 911 addressing, it became the usual format but the street names were assigned by the county if you weren't in a city. Then there were the people who didn't get mail delivery so all they had was a PO box. To this day, there are people who still only have a PO box as their "real address" and they have to go get a 911 address assigned from the Postmaster or their county when they renew their voter registration or state ID because the state decided a few years ago that PO boxes weren't real addresses for voting or having on a license. The address still doesn't work for mail delivery, it's just to fulfill a location rule.