AWS SDK Version 3 for .NET
API Reference

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Creates a delegation set (a group of four name servers) that can be reused by multiple hosted zones. If a hosted zoned ID is specified, CreateReusableDelegationSet marks the delegation set associated with that zone as reusable.

You can't associate a reusable delegation set with a private hosted zone.

For information about using a reusable delegation set to configure white label name servers, see Configuring White Label Name Servers.

The process for migrating existing hosted zones to use a reusable delegation set is comparable to the process for configuring white label name servers. You need to perform the following steps:

  1. Create a reusable delegation set.

  2. Recreate hosted zones, and reduce the TTL to 60 seconds or less.

  3. Recreate resource record sets in the new hosted zones.

  4. Change the registrar's name servers to use the name servers for the new hosted zones.

  5. Monitor traffic for the website or application.

  6. Change TTLs back to their original values.

If you want to migrate existing hosted zones to use a reusable delegation set, the existing hosted zones can't use any of the name servers that are assigned to the reusable delegation set. If one or more hosted zones do use one or more name servers that are assigned to the reusable delegation set, you can do one of the following:


For .NET Core and PCL this operation is only available in asynchronous form. Please refer to CreateReusableDelegationSetAsync.

Namespace: Amazon.Route53
Assembly: AWSSDK.Route53.dll
Version: 3.x.y.z


public abstract CreateReusableDelegationSetResponse CreateReusableDelegationSet(
         CreateReusableDelegationSetRequest request
Type: Amazon.Route53.Model.CreateReusableDelegationSetRequest

Container for the necessary parameters to execute the CreateReusableDelegationSet service method.

Return Value
The response from the CreateReusableDelegationSet service method, as returned by Route53.


DelegationSetAlreadyCreatedException A delegation set with the same owner and caller reference combination has already been created.
DelegationSetAlreadyReusableException The specified delegation set has already been marked as reusable.
DelegationSetNotAvailableException You can create a hosted zone that has the same name as an existing hosted zone ( is common), but there is a limit to the number of hosted zones that have the same name. If you get this error, Amazon Route 53 has reached that limit. If you own the domain name and Amazon Route 53 generates this error, contact Customer Support.
HostedZoneNotFoundException The specified HostedZone can't be found.
InvalidArgumentException Parameter name is invalid.
InvalidInputException The input is not valid.
LimitsExceededException This operation can't be completed either because the current account has reached the limit on reusable delegation sets that it can create or because you've reached the limit on the number of Amazon VPCs that you can associate with a private hosted zone. To get the current limit on the number of reusable delegation sets, see GetAccountLimit. To get the current limit on the number of Amazon VPCs that you can associate with a private hosted zone, see GetHostedZoneLimit. To request a higher limit, create a case with the AWS Support Center.

Version Information

.NET Framework:
Supported in: 4.5, 4.0, 3.5

Portable Class Library:
Supported in: Windows Store Apps
Supported in: Windows Phone 8.1
Supported in: Xamarin Android
Supported in: Xamarin iOS (Unified)
Supported in: Xamarin.Forms

See Also