Yes they can, we currently have 4 slots available on the Geo-Filter which means you can use 4 devices/consoles simultaneously whilst still making use of of your Geo-Filter settings.

For example, if I had 2 Xbox's and 2 PS4's and I live in the UK, I could enable all 4 devices on the Geo-filter and set my radius to 1000km around the UK. This would ensure that all my consoles could then restrict their games to hosts within 1000km of the UK.