Add the suffix ". geocast.net" to the IP you want to query, enter it in the address bar of the browser, and press Enter to see the results.
For example, to query the IP address 59.32.232.80, just enter 59.32.232.80.geocast.net in the browser.
If you are in a Linux terminal, you can use the curl tool, for example:
$ curl 59.32.232.80.geocast.net
Guangdong Telecom
The display results support Chinese,: P