Probably my 2004 Gmail account, but that’s pushing the definition of “still use somewhat frequently”. I do still have my email forwarded to my current address, but most senders have been updated with my current address.
I lost control of my Hotmail, AIM, ICQ accounts years ago.
My original Gmail account. I've had it since Gmail was in closed beta.
My Steam account is older though. Fucking thing is old enough to drink now (2003; from when I first had to use it for Counter-Strike when they took down the WON servers).
Any other 21 year old Steam accounts wanna play some Ragdoll Kung-Fu?
That still gets used? Probably my eBay account from 2000/2001. First thing I bought from there was a 33.6k external modem lol.
Edit: No, I take that back. I have an even older account on a MUD server from like 1996. It doesn't get used regularly, but I do log in every 6-7 months, randomly, and go on a few runs.
I joined a forum about 30 years ago, and I am still a regular. I can't say the exact date I joined, nor can the forum admins, as things like that were not tracked back then. Even them having my email was a way later add-on.
My AOL email. I didn't actually make it, my Dad did and I was so young I literally don't remember a time without it. I still check it despite migrating most of my accounts away.
Possibly my Hotmail, although I'm not 100% sure when I opened it, and I converted it to an Outlook email when that became an option.
Most of the sites I used to use have shut down or migrated to new systems, so my oldest account is most likely my ModTheSims account opened in 2008. I do still use it whenever I'm in the mood for some Sims 2 retail therapy.
Gmail since 2002 or something. Steam account if emails don't count.
Edit: Wow account could be older than steam account. I honestly can't remember.
Edit2: Yep, wow account is a 4 years older than my steam. Turns out I lost my first steam account that did not really have any games on it and instead of recovering it I just registered a new one. Doing this research of my own history was a questionable use of my evening but apparently necessary to get it out of my head.
Probably my yahoo mail account. I've mostly transitioned off it, but a few things still come to it and it predates even my gmail account (which I barely ever use either). Apple ID's Hide My Email ability has basically rendered all the other ones pointless though since I can just generate a new fake email address whenever I want to register for something fishy. I wish phone numbers worked the same way.
I opened my first Gmail account during the private beta (2004). It's not my daily driver account, but I still use it for government stuff like taxes and healthcare. It kinda blows my mind that it's 20 years old.
Maybe my Gmail account. I made it to play Club Penguin. I still use it when signing up for things.
I have some old forum accounts but I don't use them anymore. I also had a Minecraft account from before the Mojang and Microsoft migrations. That's gone now. :(
My League of Legends and Steam accounts are old too.
Year one Steam account, even has a unique profile badge. It's a little over 20 years old. I only made it because I bought a copy of CS: Condition Zero, and it was needed to play online.
I guess technically that'd be the email account at my employer where I started some decades ago. Before Google and their Gmail was a thing, anyway. Or, livejournal, I guess. ...MySpace... Oof, AOL... Usenet, maybe...
Here's a question for everyone who's old enough, what is KOL and what happens to it when you turn a certain age? I've yet to meet or hear of anyone knowing this answer.
My first one that I still use is my Hotmail account, but now it's just my spam email, but still randomly have to use it to get some login codes and stuff
My Steam and RuneScape accounts are both over 20 years old, and I still use both regularly. Hell, RuneScape is even available via Steam.
As far as the actual oldest account, I think I have an old Yahoo! Mail account from like… Late 1997? Early 1998? Back when AOL was still sending out free demo discs in the mail.
Technically, my Microsoft account. I created a Hotmail email account around 1997, my first ever online account. At some point, Microsoft merged my Hotmail login with their Microsoft login, and I still use it today; although I've changed the email address to a more current one. Microsoft killed Hotmail a long time ago, in favor of Outlook.
Strangely, the oldest thing I have left is a web hosting account by Strato that I opened around 1999. My dad still uses an e-mail adress he got with his first T-Online account when the internet became available for normal households in Germany in the mid-90s.
My fark account is old enough to drive in the US. I don't think I really use much of anything that old anymore.
I had facebook from the time when it still required a .edu email, though I quit that. I lost access to my hotmail account years ago after dropping it in favor of gmail. I had IRC accounts going back into the '90s, but I almost never use IRC anymore (and certainly not on those same networks (assuming they even still exist)).
My Yahoo Mail was opened the first week of January, 1998. Would be my Hotmail account, but I made my Yahoo account because Microsoft bought Hotmail, and stopped using Hotmail
Yahoomail account. Created it in the early 2000s, stopped using it around 2009 when I moved on to newer email providers. I remembered I still had it last year when I got an emai on my recovery email that they will be deleting my account if I don’t login. I somehow was still able to recover it and login after 15 years. Now I just login whenever I get a notification of inactivity. I don’t actually use it for anything anymore.
Lots of people mentioning Neopets. I did have an account there but couldn't log back on when I tried a few years back, so I guess my account was deleted (or I've got my login details wrong)
My memory is terrible, and it doesn't help that I have the world record for the most sites having signed up for (a very nerdy bragging right I have), but it has to be something like one of the Pokemon MMO's, RuneScape, or Furaffinity (RIP Dragoneer). Most of the old places I've been to are gone one way or another, for example I haven't heard from Postopia since the E3 disaster.