1. A method for consolidating virtual machine instance data within a logical zone across a plurality of accounts into a selected data center comprising: receiving a request to link the plurality of accounts, each linked account having an associated logical to physical assignment that assigns the logical zone to a data center; determining, based on one or more selection priorities, the selected data center to which to assign the logical zone for all of the linked accounts; and for each linked account for which the logical zone is assigned to a non-selected data center, receiving a request for the linked account to launch a new virtual machine instance in the logical zone; determining whether the linked account is actively mapped to the non-selected data center, wherein an active mapping is triggered by mapping events comprising launching a virtual machine instance within the non-selected data center, and wherein an active mapping is expired by unmapping events comprising terminating all virtual machine instances within the non-selected data center; when the linked account is not actively mapped to the non-selected data center, unassigning the logical zone from the non-selected data center, re-assigning the logical zone to the selected data center and launching the requested new virtual machine instance in the selected data center; and when the linked account is actively mapped to the non-selected data center, unassigning the logical zone from the non-selected data center after the active mapping has expired.