That's for your own use however, the license says:
Access to the data is restricted to employees and contractors of the license holder. With contractors, the license holder is liable should the contractors violate the terms of the agreement.
Data may not be stored in a way that is publicly accessible.
This really looks like maxmind city level, so... until we get confirmation from the dev on what db it is, assume this service can disappear at any moment due to license issues.
Access to the data is restricted to employees and contractors of the license holder. With contractors, the license holder is liable should the contractors violate the terms of the agreement.
Data may not be stored in a way that is publicly accessible.
If you wanted to build a public server with that, you would have to use their per-usage API according to their FAQ: http://www.maxmind.com/en/faq#lookuptool