there was a big market for short numbers back in the day. i remember buying a 6-digit icq number for a 10€ paysafecard when i was like 14 in a "hacker" forum lol
The hack was to scan ICQ numbers for their associated email addresses, filter by big providers like Hotmail and Yahoo and try to sign up for the same address. Some were abandoned and you could use the username again. Then password-reset in ICQ and voila, there’s your 6-digit ICQ number.
But yeah, I bought a 6 digit number on eBay for 5-10 bucks too ;)
