Old stuck device

I am trying to tidy up some loose ends as things have been getting a bit messy here, to help me i want to remove some old unused items such as integrations and entities, . I have a device which i think is an old phone showing up but it does not appear under integrations as a mobile app. and even more oddly it shows up in my event history as the device that is doing most of the triggering of my other entites when i am using a browser
old phone

Are you sure that’s not the name of the person entity?

No there is only one person and there is no reference to that phone. I think it was an old phone that i had the HA app installed.