Yes, however, mobile devices have dynamic IP addresses when using cell service.
Only when using a VPN or a WiFi connection do they have an assigned standard IP address.
As a result, you can not restrict the IP address for mobile devices operating on a mobile network.
If IP restrictions are in place and someone views from a mobile device they will not be able to view the content. They should either connect to VPN (or wifi) which should be on the list for allowed IP addresses or the content should be placed in a folder that bypasses IP restrictions.
If you need additional assistance, please contact Support.