Don’t carry a cell phone. I value being unreachable.
I carry one for work. I’m sure FedGov has the number, since I’m an outspoken gun owner.
If you can't reach me ... you ain't supposed to. I'm positively GA GA about my privacy!!
Go to a Walmart. Put your cellphone in one of their small cheap microwave ovens. Have a friend call your phone number. If the phone in the microwave rings, go on to the next small microwave and try again.
When you find a microwaves that stops your phone from ringing - buy it and leave it in your car to ‘carry’ your phone. As long as you don’t take the phone out of the microwave you can’t be tracked (well, unless you have a ‘smart car’ )