Thats what im saying you move you get a new account number no matter what. Each apartment and each house is assigned a account number and never changes. The account never follows the sub. The only time a account gets changed is if for some reason comcast made the account unserviceable due to fraud or something like that. In that case when a legit sub moves in and proves they are not the old sub a new account is written so the new person can get serviced at all. A transfer in many cases saves the sub money as a transfer has less install fees and still allows the sub to get new subscriber promos.