Skype is fully committed to delivering as safe and secure of an experience as possible to our customers. We have recently introduced the ability to hide a Skype user’s IP address and we’ve set this as a default status in the latest versions of Skype.

Starting with this update to Skype and moving forward, your IP address will be kept hidden from Skype users. This measure will help prevent individuals from obtaining a Skype ID and resolving to an IP address.

You can find this update in the latest versions of Skype on desktop and mobile devices, which you can download here. We also recommend you update Skype across your devices to ensure you benefit from the best experience possible.

Source: To our gamers: IP will now be hidden by default in latest update - Skype Blogs