449
Pioneering internet messenger ICQ shuts after 28 years - CNA
(www.channelnewsasia.com)
This is a most excellent place for technology news and articles.
I got on ICQ in 97 or 98 to keep up with friends from a MUD and mine was 7 digits. I haven't logged into it in over a decade because when I went back to see if anyone from the old game was around none ever showed up online.