CHyren- Your home has one IP, your work has another IP, your iPad (in my case) has another IP and your cell phone has another IP.... IP tracking can help but it hardly solves the problem... Also your home and work IP changes periodically, unless you have a static IP.. But you would be able to tell the area an IP is coming from... Because a carrier has certain blocks of IP's that they give out... And that doesnt include if you go to MCdonalds or starbucks to have a coffee and log onto their network... Now you have a another IP... it is also very easy to use a VPN(virtual private network) to hide your true IP or have a fake IP so to speak...

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All things are subject to interpretation whichever interpretation prevails at a given time is a function of power and not truth.
Nietzsche