Create registration with a global registrar to associate an assigned subnet with the provided contact details.
Contact information is provided in the form of a [SoftLayer_Account_Regional_Registry_Detail](/reference/datatypes/SoftLayer_Account_Regional_Registry_Detail), which reference can be provided when the registration is created or afterwards. Registrations without an associated person detail will remain in the ``OPEN`` status. To specify a person detail when creating a registration, the ``detailReferences`` property should be populated with a list item providing a ``detailId`` value referencing the [SoftLayer_Account_Regional_Registry_Detail](/reference/datatypes/SoftLayer_Account_Regional_Registry_Detail).
The same applies to [SoftLayer_Account_Regional_Registry_Detail](/reference/datatypes/SoftLayer_Account_Regional_Registry_Detail), though these references need not be provided. The system will create a reference to the network described by the registration's subnet in the absence of a provided network detail reference. However, if a specific detail is referenced, it must describe the same subnet as the registration.
A template containing the following properties will create a subnet registration:
* networkIdentifier * cidr * detailReferences
``networkIdentifier`` is the base address of the public, SoftLayer owned subnet which is being registered. ``cidr`` must be an integer representing the CIDR of the subnet to be registered. The ``networkIdentifier``/``cidr`` must represent an assigned subnet. ``detailReferences`` tie the registration to SoftLayer_Account_Regional_Registry_Detail objects.
This method modifies a single registration by modifying the current [SoftLayer_Network_Subnet_Registration_Details](/reference/datatypes/SoftLayer_Network_Subnet_Registration_Details) objects that are linked to that registration.
The subnet registration data type contains general information relating to a single subnet registration instance. These registration instances can be updated to reflect changes, and will record the changes in the [SoftLayer_Network_Subnet_Registration_Event](/reference/datatypes/SoftLayer_Network_Subnet_Registration_Event).
Subnet registration objects are used to request and track registration of the subnet with the appropriate Regional Internet Registry (RIR). Registration for public subnets can be requested any time after assignment of the subnet.
Subnet Registration objects can be updated any time after they are created. This will result in the information being submitted to the RIR and the records on their end being refreshed.