derekson said:
My understanding is that non-cellular devices use the database of Wifi network names and their known locations from GPS devices for location services. This is also a fallback/secondary source for cellular devices. I don't believe it's based on IP addresses. This was also how the first iPhone did location services since it lacked GPS (at that time they used SkyHook for a database, not sure if they have their own proprietary one now or what).
my cell-dead Ipad showed the same erroneous IP geo location as my laptop did at the beginning of the season, as it always does at the beginning of every season since AT&T doesn't publish any fine detail of many of the IP blocks.