So.. since these are 'dynamically created' somewhere in the system or whatnot instead of actual files I can see in a folder now.. I have a handset I provisioned for myself which I am going to stop using. I removed the handset profile in my Phone Phovisioning section.. I still have some other model with a different MAC for a home handset via SBC.. so I know I'm "not" seeing it there anymore. So.. I factory the handset. However.. as usual our DHCP scope option is providing some auto-provision info.. and here is the handset, fully configured to my extension again. Worse.. if I try to workaround by adding a new extension I intend to kill after the fact.. and add the phone provisioning, it says my phone/MAC belongs to 'my' extension, put another way it won't let me set the provisioning entry onto another extension because it believes it belongs to 'my' extension.. yet 'my' extension has no info about this. So it would seem that I have a handset still tied to 'my' extension though isn't listed.. and can't assign it to some other extension.