US postal customers -- do you know your ZIP +4?

Simple poll. Do you know now, and/or have you ever known, the four-digit extension to your residence?

Poll to follow very shortly.

I should say that for the purposes of this poll, “knowing” it means having it memorized at some point. Having to look it up once just to throw it on an envelope and then promptly forgetting it doesn’t count for this.

Nope, but I looked it up. It’s 5814. I’m at the very edge of it. My ex-girlfriend, who lived down the hall from me, was at the other edge. It encompasses 6 apartments.

I know it, but then I’ve lived in the same small town since before they added the 4 extra digits.

I’ve only lived at one place since they introduced Zip+4, but I know it.

I’ve never memorized. On the rare occasion I needed it I only had to look at a piece of junk mail. And in the unlikely situation that one does not have any junk mail available, some will show up in no more than 48 hours if you have a 9 digit zip.

I don’t think I’ve ever had my ZIP +4 memorized. I did use to have the ZIP Code lookup page on the USPS site in my favorites, though. That’s as close as I ever got.

I used to know it for my old house. I’m still struggling to put down my new address and phone number these days, I lived at the old house for nearly 25 years.

I assimilate numbers pretty easily, and I’ve seen my Zip+4 on thousands of pieces of mail, so I’ve memorized it without ever trying to.

Oops. I voted for option 3, when I should have voted for option 2. I’ve only lived in one other house, and if it had a Zip +4, I was too young to know it. Plus my current house had a different Zip +4 before they changed the addressing system to no longer use Rural Route numbers.

I don’t know my current zip+4, (until I looked it up just now), but I know it for my parent’s house. Pretty easy, since it’s just our PO Box number.

I don’t have it memorized, but of course I could easily look it up.

ETA: Actually, I have a good guess about it, because it’s on most pieces of mail I get, but I can’t be sure. So I still picked that I don’t know it.

I’ve been in this house well over 20 years, so I know it despite having made no effort to memorize it.

I don’t remember whether I knew it at previous addresses or if they even had it when I was living at previous addresses.

Nope. I went to look at it on the Web site from that other thread, and I thought it was 2017, or 2071. It was 2117.

Yes I know it and have always used it as I understand the potential for efficiency in sorting the mail that it provides. In the early days the USPS even sent around a flyer that said they could refuse to deliver mail that did not have the +4 attached. That was an idle threat of course and the memo never surfaced again.

I recall the exact opposite–the USPS emphasizing that +4 wasn’t required and would never be required, but was merely a tool to allow bulk mailers who chose to use it to get a discount.

I’ve taken them at their word. I don’t know mine and don’t want to know it.

I no longer live in the US, but I still know the ZIP+4 for the house that I lived in when in the US. It does help that the last 3 digits were the same as the last 3 digits of the 5-digit ZIP code.

I tracked down a NY Times editorial from 1981 – when the ZIP + 4 system was still under Congression consideration – that agrees with you. It says, in part:

I’ve never even heard of it.

I knew it until they changed it a few months ago. I’m not sure how renaming 1/3rd of the streets in town (yes, literally) resulted in a change of the extended zipcode, but it did. We only figured it out when, while updating the address online, Amazon told us that the old zipcode’s last 4 numbers didn’t sound possible.