Yep, it's called cell id location. I worked in mobile phone location about 8 yea... | Hacker News

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		iang on April 21, 2011 \| parent \| context \| favorite \| on: Apple is not “recording your moves” Yep, it's called cell id location. I worked in mobile phone location about 8 years ago and you could find a rough position (about 200m radius IIRC) and we used it as a first pass. That was on GSM networks, 3G cells are smaller.

metageek on April 21, 2011 [–]

And the newer E911 requirements which kick in next year call for 100m accuracy.

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