Comment by XorNot
And yet realistically you also probably don't turn it on except when you're within about 50 miles of your home.
And this is while you're flagging yourself heavily by (1) using a phone which is easily identified as a burner and (2) using it intermittently which means you're trying not to be tracked.
So you've already substantially identified yourself in any dataset.
I'm not sure how many people would get any use out of a burner phone that they need to be 50 miles away from home top use?
One of my hobbies is Recreational Paranoia. I used to have (probably still do in a drawer here somewhere) a 3G WiFi hotspot, with an Arduino and GPS module that powered down the battery within a few km of home (actually, within a few km of a public library that's a few km from home, so plotting all the power up & down locations would centre on the library not my house). I could then leave home with that in my backpack and instead of my phone take a wifi only device - I mostly used an iPod Touch but also sometimes Android tablets. I wouldn't get actual phone calls sir SMS that way, but those are both rare for me, most of my social comms are via Signal which worked just fine.
I figure wifi cellular hotspots are "not easily identified as a burner phone" and that intermittent use of them is the most common case. It would still have been able to be tracked as being a thing that turned on and off in my surrounding suburbs, and I'm sure I slipped up last least a few times and had it with me while I also had my phone with me - but like I said this was for my hobby, not running an international drug cartel or doing journalism critical of Saudi Royal houses...