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.AT is the official country code Top-Level-Domain (ccTLD) of Austria. An .AT Domain is normally used by companies or private entities who are located in Austria or who have business relationships with Austria.



Allowed TLDs



Dispute Policy



1api GmbH



24 hours

Min. Characters


Max. Characters


Character Set
  • Letters and numbers
  • Hyphens ("-"), however not at the beginning or directly in front of the TLD
  • IDN: allowed
  • Registrant Contacts: Required: 1 / Maximum: 1
  • Admin Contacts: Required: 0 / Maximum: 1
  • Tech Contacts: Required: 1 / Maximum: 2
  • Billing Contacts: Required: 0 / Maximum: 1

{{{Possible Extensions}}}

IDN capable


Restore capable


Handle Updates

Supported (partially)

Registration System


Allowed number of NS

2 to 8

Registry Nameservercheck


Host IP-Addresses Type

IPv4 / IPv6

Hosts managed as


Root Nameserver Update

4 times a day

SEC DNS Interface

DS data interface



Transfer Periods


Transfer Authcode required


Transfer Real-Time


Transfer Lock


Owner Change by


Trade Real-Time


Transfer included


Trade ACK by


Trade NACK by


Domain Registration

Domains can be registered in Real-Time with the API AddDomain command.

command = AddDomain
domain  = (DOMAIN)


ownercontact0 = (CONTACT)
admincontact0 = (CONTACT)
techcontact0 = (CONTACT)
billingcontact0 = (CONTACT)
nameserver0 = (NAMESERVER)
nameserver1 = (NAMESERVER)


auth = (TEXT) | (NULL)
period = (PERIOD)
transferlock = 0 | 1 | (NULL)

Domain Transfer

The transfer has to be initiated by the gaining registrar and can be requested with the API TransferDomain command.
A valid Authorization Code must be provided to initiate a transfer successfully. You may obtain the authorization code from the losing registrar.
Domain transfers are processed in Real-Time.

In case that you our your client does not have access to his mailbox anymore the transfer can be confirmed alternatively via fax. The fax can be downloaded direcly on the NIC.AT´s Website Please fax this form directly to NIC.AT +43 662 46 69-29

command = TransferDomain
domain = (DOMAIN)


period = (PERIOD)
transferlock = 0 | 1 | (NULL)

Delete Domain

Domains can be deleted with the API DeleteDomain command.
There is a Deletion Restorable Period of 60 days and a following Deletion Hold Period of 59 days.

command = DeleteDomain
domain = (DOMAIN)

Further information can be found at TLD specific

Restore Domain

Restores can be processed in realtime. A restore is possible within 60 days upon deletion. Please use the command RestoreDomain.

command = RestoreDomain
domain = (DOMAIN)


subuser = (TEXT)
renewalmode = (NULL) | (TEXT)

Further information can be found at TLD specific


All contact information with the exception of registrant Name, Firstname and Organisation can be updated through the ModifyDomain command.

Please note that the registry does not support handle updates. You have to create a new handle containing the same information for Name, Firstname and Organisation as well as the updated contact information and attach it to the domain with the ModifyDomain command.
command = ModifyDomain
domain = (domain)


ownercontact0 = (CONTACT)

In order to change the owner you have to request a trade with the TradeDomain command. This can be done through our web interface or through our API:

command = TradeDomain
domain = (DOMAIN)


ownercontact0 = (CONTACT)

Before a trade gets processed by the registry, a fax form is required by the registry to process a trade. Once confirmed then the trade will be processed. The fax form can be generated with our formgenerator

Special deletion information

You can choose, if the registry should delete the domain immediately or at the end of its term with the following extension:

X-AT-SCHEDULEDATE = expiration | now 

Indicates, if the registry should delete the domain at the end of its term ("expiration") or immediately ("now"). If the parameter is not given the domain will be deleted at the end of its term.

If you do not have the consent of the registrant you should set the domain renewal mode to AUTOEXPIRE. This will cause a so-called BILLWITHDRAW at the registry at the end of the term of the domain. A BILLWITHDRAW means that the registrant will become the new billing contact of the domain and will be charged directly from the registry for the renewal of his domain.
As the .AT registry handles domain-deletions very strict, we highly recommend to save a written confirmation of your client for domain-transactions. In case that you have to delete domains immediately, e.g. in case of fraud, the only way is to delete the domain with the API DeleteDomain command and setting the parameter X-AT-SCHEDULEDATE to "now".

Please note that you're only allowed to delete .AT domains directly if you have the signed authorization of the registrant. The cancellation-form is available for download here:


Restore are possible if the domain was deleted explicitly with the DeleteDomain command or set to "AUTODELETE".

Restores are not possible if the domain was set to "AUTOEXPIRE" or was pushed back to the registry with the PushDomain command. In order to get your domain back, please request a transfer via API or Controlpanel. Please note that as soon as you have requested a transfer, NIC.AT will send out a confirmation email to the domain-owner to confirm the transfer.

Restore Process

To restore a domain as a RegistrarOC customer, you simply have to execute the RestoreDomain command. HEXONET directly forwards the restore request to the registry, which performs the restore in real-time. As soon as the restore is complete, the domain will get assigned to your account with the original domain data.

Please do not initiate a restore directly at the registry (e.g. using the registrar webinterface). All restore operations must be performed through our system.