![]() ![]() Few employees have company-issued phones connected to the network. I work at a satellite office about a mile from the main headquarters, but we have facilities (mostly small storefronts) over about a 1000mi radius from that location. My workplace has extremely bad cell coverage and no GPS coverage indoors. On laptops and desktops with no GPS, browsers will use this access point data to set a location - IP addresses databases are not up to date enough and sometimes they are linked to the ISP office address and not to specific towns and cities and certainly not to a specific address. While a fix is not available phone GPS uses any visible MAC address to determine its coarse location. A GPS get a fix faster if you are using it close to where it was last used, or how fresh the stored almanac data is, otherwise it may not find expected satellites in certain locations in the sky. Actual GPS takes a few moments to get a fix, even more if indoors. This information is also used for a GPS cold start. ![]() If you live in a location with low traffic/human density then it may take longer for Google to change it back. It may not link that data to your account, but it uses it to help getting a GPS location. In your case, if you used your phone via the VPN for more than a few hours, Google associates that MAC address with the finer location from your phone's GPS. Google logs your current location and the MAC address of any access point visible to your phone. It took a couple of weeks for Google services to catch up. For a few weeks his computer and other devices reported his location as being my city instead of his. Many years ago, I gave a friend in another city a router. When I use an HTML 5 location based service to figure out where I am, it's only off by about 20 blocks.Not you IP address but your router/access point's MAC address and been doing it for many years.įor example, I receive quite a few devices for reviews, and I mostly give things away after using those. The exact implementation depends on the computer, what hardware it has available, and how the browser chooses to do things.įor example, when I check an IP-based location service, it says that I'm in a particular large city in the same general area that I live in, but it's actually about 50 miles away. For devices without GPS, it can often provide a very good approximation based on nearby known wireless signals and other factors, such as tracing what routers your computer goes through when connecting to the internet. This makes it much more useful for webapps that have a navigation or location component. ![]() If your computer has GPS built-in (such as on many mobile devices and some laptops), it will know exactly where you are. HTML 5 location uses services provided by your browser to figure out where you are. If your ISP sells off blocks of IPs or moves them to a new town, the database may still incorrectly think you're somewhere else. Furthermore, those databases are usually not updated frequently. The address in one town today might be 100 miles away tomorrow. This doesn't work well when your ISP services a very large area and gives out dynamic IP addresses. IP-based Geolocation depends on databases associated with ISPs (Internet Service Providers) to figure out where you are. HTML 5 Geolocation tends to be much more accurate than IP-based Geolocation. ![]()
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