subpoena cellphone records

[EmilyS]

Could a subpoena be issued for the phone records of the cellphone that does not exist?

The person that I need to subpoena had changed their cellphone #. Could I still get a record of the phone calls even though the phone is not in service anymore?

Also, how bad of a crime could it be to be able to subpoena the records

Thank you

PS NY State

 

[racer72]

Duplicate post. See your other one.