WhoIs

WhoIs is a small command-line application whose purpose is to help you scan IP addresses and query databases in order to retrieve information about network service region and related contact details.

Facilities brought by portable tools

The program can be directly run on your system without having to go through an installation process. You only need to open the executable file.
If you no longer need it, you may simply delete the files that you have downloaded from the Internet, as it doesn’t write entries in the Windows registry. Copying it on any USB flash drive or other devices and run it without administrative privileges is also possible.

Command-line arguments

WhoIs can be run only via the command-line console so some previous background skills are required for working with this tool. You need to manually enter the path that stores the executable file and write the target IP address next to it.
The application queries the online RIPE database in order to provide the details about a given IP address. Upon a successful query task, the tool provides information about the network provider, location (city, country), and database server in a separate command-prompt window.
We have tested the utility on Windows 7 and the process went smoothly and without errors. The information is shown pretty quickly and the tool does not eat up a lot of CPU and memory, so the overall performance of the computer is not affected.

Bottom line

All in all, if writing command-line arguments is not a difficult task for you, WhoIs provides a straightforward way for helping you get details about your network provider and geographical locations.