https://jonlabelle.com/snippets/view/csharp/check-ip-address-in-cidr-range
Check IP Address in CIDR Range
Determines if the specified IP address falls into a specific CIDR IP range.
check ip addresscidrrange
https://www.bitbrowser.net/what-is-my-ip/
Check IP address, BitBrowser
Use the free IP address lookup tool todetect to instantly check IP location, ISP, and connection details to enhance online security and troubleshooting.
check ip addressbitbrowser