The two character country code in ISO 3166-1 alpha-2 format.
:msisdn(required, String)
—
An available inbound virtual number.
:target_api_key(String)
—
If you'd like to perform an action on a subaccount, provide the api_key of that account here.
If you'd like to perform an action on your own account, you do not need to provide this field.