Why?!
Part of my job is shutting down lost or stolen cards. I routinely get people who are quite upset that I’m sending them a new card with a different number because they have the old number memorized. I can’t fathom why someone would go to the trouble of doing that.
So you don’t have to dig it out every time you want to buy something online? That’s why I memorize it, anyway.
My debit card number is memorized. I didn’t do it on purpose though. It just stuck in my head because I use it so often.
Wait! Is this a trick question to get us to give you our numbers? I ain’t playing. 
Because I’m lazy. I don’t want to have to get my card out every time I buy something online, especially not if my purse with the card in it is in another room.
My wife does for the reason stated above - ease when ordering on-line/phone.
Me, I have a hard enough time remembering my phone #.
Not deliberately, generally, but I know the number of my primary credit card and my bank card, because I enter them online with great frequency.
On the other hand, I’m smart enough to realize that if you’re canceling my card, I’m going to end up with a different number, and just resign myself to getting it out of my wallet for 6 weeks or so.
Do you also memorize the expiration date and the CVV code from the back?
Yes and yes. I use my credit card often. These are not long numbers. It seems to follow that eventually, I would memorize them. It is not that complicated.
I used to have it memorized, for the ease of shopping online/on the phone. Including the expiration date and number on the back (which I think barely counts as “memorizing,” that’s the shortest part).
I was disappointed when I got a new card and the number was different. Coincidentally, the last part of the number is very similar, but not exactly the same, as an access number that I use often at work. Now, I trip up every time I need to use the access number, and will never remember the card number either.
Of course, I’m using the word “disappointed” in its most mild meaning, and in a million years wouldn’t complain to the card company phone person either.
I also don’t intentionally memorize them, but it just kinda happens.
I know my debit card number from logging into my web banking console. It’s not so much a deliberate thing as regular use.
Yes, of course.
I recently had to change the card number that I had memorized. I bitched to Mr. Neville about it, and thought about posting in mini-rants, but I understand that that’s the way it has to be, and didn’t complain to the person I talked to from the credit card company.
Yeah. Not doing so would kind of defeat the point- you’d have to go get the card.
Yes to the op, and yes to this. I don’t do it intentionally, I just remember things. SSN, drivers license #, my insurance sales license #, employee # and so on and so forth.
As others stated I did not do it on purpose it just happens. I know the expiration and the security code as well.
The bank had to cancel my card because there was a merchant that had stolen card numbers being used and my card had been used there recently so on the safe side they cancelled my card and sent me a new one.
I did not complain and just learned the new number. It does not take that long really to memorize it again.
No, I’ve already got too much trivia inside my head to memorize my credit card numbers. Plus you have to remember the expiration and CVV2 as well. No sir.
When I shop online I gravitate to stores that save my CC number, like Amazon.com.
The places I shop do this, but I prefer to enter it each time.
You enter something often enough, eventually you memorize it or your fingers remember… if I stop to think about it I can’t remember but I can just zip it off on the keypad. I’ve got my SIN and my library card memorized (and my Mom’s!), and my credit card almost (but not quite).
Yup, I even have my old driver’s license number memorized and we changed numbers years ago. Some things just stick in the head due to repeated use.
I know my bank card number and my driver’s license number.
In the odd occasion where I need to give my driver’s license number to someone they are quite perplexed as to why i would know it off-hand. I’m not sure now why I committed it to memory, but I’ve had the same number for 29 years, so you would think at some point you’d start to remember parts of it. It’s 15 digits long, but it has my birth date embedded in it and it begins with the first letter of my last name. So I only had to remember the remaining 7 digits. Not unlike a phone number.
As for my bank card, I check my balance on-line a few times a month and remembering the number, as opposed to pulling the card from my wallet every time, was simpler. The first 3 digits are displayed by default, and then I type in the remaining 13. No big deal.
I don’t use my credit card often enough to even care what the number is.
Yep. I shop online often enough that it just happens.