485
Location tracking of phones is out of control. Here’s how to fight back.
(arstechnica.com)
This is a most excellent place for technology news and articles.
Same as today, but slower.
GM’s OnStar was notorious for this. I think the first version had a 2G cell modem
GM's OnStar, I believe, was just EDS's tech at the time of their rollout in '96ish