In case anyone else finds this useful, Meraki Support pointed me to the Docs where it does state that it is guaranteed to be unique in the Org and not just in networks bound to the template: "The subnet will be randomly selected based on the address space and subnet mask, but will not use any subnets that have previously been used in the organization." https://documentation.meraki.com/General_Administration/Templates_and_Config_Sync/Managing_Multiple_Networks_with_Configuration_Templates#MX_-_Template_VLAN_IP_Address_Range_Allocations Don't know how I missed that! ... View more