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   comp.protocols.tcp-ip      TCP and IP network protocols.      14,669 messages   

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   Message 14,443 of 14,669   
   Grant Taylor to Barry Margolin   
   Re: How does geolocation work?   
   29 Mar 20 12:08:25   
   
   From: gtaylor@tnetconsulting.net   
      
   On 3/27/20 8:20 AM, Barry Margolin wrote:   
   > Not very well. IP geolocation software usually thinks I'm in a city   
   > more than 5 miles away.   
      
   I'd call that quite good.   
      
   5 miles away out of the ~12,000 from any point on the glob around the   
   the opposite side, that's quite good.   
      
   That's 99.959 % accurate.   
      
   Considering that GeoIP databases are primarily intended to identify the   
   country, 5 miles seems spot on to me.   
      
   Considering the nature of how many GeoIP databases work in that they   
   associate a net block with an ISP, who can then dynamically assign IPs   
   therein to any of their customers, across town is about the best you can   
   get.  (Assuming that the ISP uses different net blocks in different towns.)   
      
      
      
   --   
   Grant. . . .   
   unix || die   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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