Went home and war dialed that local prefix (next city over) until I found the carrier number.
I was 14 and it was 25 years ago
All of the Toledo numbers were constantly busy, so I tried other "local" numbers and ended up discovering that the Findlay number would usually answer. I set that as the default and thought nothing more of it, while all of us used it for hours a day.
The phone bill that arrived at the end of the month was quite large.
Same thing happened to a friend. After that, I got into music and developed a more "healthy" approach to the internet... using it to learn about synthesizers and download the occasional cracked plugin.
But occasionally you'd find someone who left behind their Visa or Mastercard number.
I know this because of the late charges I incurred due to a typo on the account number that the system accepted.
I won’t say how I learned this, but maybe the context clues will fill you in on how it ended when six months into discovering the internet for the first time, my family got a visit from the local PD and some gentlemen from “a government office down state”.
I was 13 at the time. Not much came out it but some very strong words from a local magistrate, who ultimately showed clemency and dropped the affair with orders that I remain “off the web” for a year.
My father on the other hand…was not so eager to let that one go, heh.