I don't work for MaxMind and I'd recommend it too. A couple years ago I worked on a project that involved processing the "Internet Census of 2012" data. The M

I don't work for MaxMind and I'd recommend it too. A couple years ago I worked on a project that involved processing the "Internet Census of 2012" data. The MaxMind DB format was a fast, efficient way to store simple data keyed on IPs and subnets.