zones

Specifies a list of Availability Zones in which this Custom IP Prefix should be located. Should not be specified when creating an IPv6 global prefix. Changing this forces a new resource to be created.

Note: In regions with availability zones, the Custom IP Prefix must be specified as either Zone-redundant or assigned to a specific zone. It can't be created with no zone specified in these regions. All IPs from the prefix must have the same zonal properties.