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how are users located by Zip Code?

1 reply [Last post]
Anonymous

How exactly does Opentracker tell where a user is by zip code? If an aol
user visits my site and they are in Los Angeles, doesn't the hit come from
the AOL ISP in Virginia for AOL which is where the AOL servers are?

Anonymous

Yes, you are correct, with large ISPs like AOL, there is a chance that the situation you describe may happen. IP addresses shift in ownership, and/or location. The third-party database we use provides us with (updates of) ownership information as regards ip addresses / ranges. The data is generally more accurate for smaller ISPs. We looked at quite a few solutions before choosing the databases that we use.

This particular technology is still very much an emerging field.