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.AU is the so-called country code Top-Level-Domain (ccTLD) of Australia. An .AU domain is normally used by companies who are located in Australia or who have business relationships with Australia.

Introduced 1986
Country Australia
Registry AusRegistry
IDN Capable N/A
Webpage Register .AU



Please see section “Information Starting March 1, 2017” at the end of this page!




Allowed TLDs




Dispute Policy


  • Registrant Contacts: Required: / Maximum:
  • Admin Contacts: Required: / Maximum:
  • Tech Contacts: Required: / Maximum:
  • Billing Contacts: Required: / Maximum:

{{{Possible Extensions}}}

Allowed number of NS



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Domain Registration

Domains can be registered 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)

Further information can be found at TLD specific

Domain Transfer

The transfer has to be initiated by the gaining registrar and can be requested with the API TransferDomain command. A confirmation email will be sent out by the registry to the registrant. After the registrant has confirmed the transfer, it will be processed in real-time. Australian domains typically take up to 48 hours to transfer, provided there are no issues with the transfer such as incorrect details. This also depends on AusRegistry who handle the transfer but almost always it is within 48 hours.

command = TransferDomain
domain = (DOMAIN)


ownercontact0 = (CONTACT)
admincontact0 = (CONTACT)
techcontact0 =(CONTACT)
billingcontact0 = (CONTACT)
auth = <TEXT> | <NULL>


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

Delete Domain

Domains can be deleted with the API DeleteDomain command.
There is no Deletion Restorable Period.

command = DeleteDomain
domain = (DOMAIN)

Restore Domain

command = RestoreDomain
domain = (DOMAIN)


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


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)

TLD specific


.AU is the so-called country code Top-Level-Domain (ccTLD) of Australia. An .AU domain is normally used by companies who are located in Australia or who have business relationships with Australia.

  • COM.AU: For Australian registered companies or a trading under a registered business name in any Australian State or Territory or an Australian partnership or sole trader or a foreign company licensed to trade in Australia or owners of an Australian Registered Trade Mark or an applicant for an Australian Registered Trade Mark or associations incorporated in any Australian State or Territory or Australian commercial statutory bodies
  • NET.AU: same as for .COM.AU
  • ORG.AU: For a charity operating in Australia or a non-profit organisation operating in Australia
  • ID.AU: For Australian Citizens and Australian Residents

Special parameters

Required for .COM.AU, .NET.AU and .ORG.AU registrations:

X-AU-REGISTRANT-ID-NUMBER = (TEXT) (max. 255 chars) - The respective number depending on the registrant id type.
X-AU-REGISTRANT-ID-TYPE = ABN | ACN | RBN | TM - The meaning of the abbreviations is stated in the table below.

Abbreviation Registrant Id Type
ABN Australian Business Number
ACN Australian Company Number
RBN Business Registration Number
TM Trademark Number

The validity of the ABN number can be checked via the following LINK:

The Australian Trademark database can be search via the following database:

ATMOSS - Australian Trade Mark On-line Search System



No special procedures.

IMPORTANT: .AU Domain Name Changes and Information Starting March 1, 2017

Starting March 1st, 2017, HEXONET will have a new provider for .AU domain names. This switch resolves minor issues with .AU domain names we have been experiencing and is expected to have little or no impact on most resellers and clients.

All details about the transfer process are made available to our resellers per email notification. This is a compilation of the most important changes ahead:

1. OTE is Available for .AU

In the new system, an OTE environment is available for .AU. Limitation of OTE: Transfers and Trades are not available.

2. .AU Domain Trade Email/Fax Procedure

Resellers are required to provide their registrants a link to the non-branded .AU trade PDF form at when submitting a trade. For the convenience of your customers, Resellers will have the option to provide a pre-filled PDF version of the .AU trade form by following the instructions on this help page. Please keep in mind that registrants (losing and gaining) need to print, sign, and fax or email the .AU trade form to our neutral non-branded email address or fax for processing.

3. Domain Ownership Certificate

As required by auDA policy, with each new .AU domain registration or each .AU domain trade, the new owner will receive an email with an attached auDA certificate of ownership (PDF).

4. .AU Domain Trade vs. Domain Modify Rules

Whenever an X-AU flag is changed, this requires the use of the TradeDomain command. Please note that a TradeDomain command with a changing X-AU flag also requires the submission of a registrant contact handle at the same time. In the special case where a registrant contact handle is changed only this can be done with a ModifyDomain command.


Previously, ABN, ACN, RBN or TM were accepted for X-AU-REGISTRANT-ID-TYPE. Please note that RBN will NO LONGER BE ACCEPTED going forward. Business names using state and territory services were phased out in 2012.

6. .AU Domain Transfer Notes

Contact handles are no longer required for a transfer request. Also, the registrant transfer confirmation email and the respective online form will have small changes including a different registrar name.

7. .AU Domain Transfers with Period = 2 not Accepted

The default transfer period (if no dedicated period is provided with a transfer request) was 0 and will remain 0 on the new system. Though previously a period = 2 was accepted, going forward, a period = 2 is not longer accepted with a .AU transfer. Either do not provide a period or provide period = 0. Please note that an .AU domain name can be renewed after a transfer.

8. .AU Domain Name Life Cycle

The Renewal Finalization Period will remain unchanged at -1d (.AU domains set to AUTORENEW will be automatically renewed 1 day prior to the expiration date). The Renewal Failure Period will be adjusted a day from +30 to +29 days (.AU domains set to AUTODELETE OR AUTOEXPIRE will be automatically removed from our system 29 days after the expiration date). The Deletion Restorable Period will be adjusted from +3d to +1d (any explicitly deleted or auto-deleted / auto-expired .AU domain can be restored until 30 days after the expiration date).

9. .AU Nameserver / Host Management

Nameservers will now be managed as an OBJECT and not as an ATTRIBUTE. A minimum of 2 nameservers are now required for .AU domain names (previously: 0). Use and assignment of child nameservers (requiring ownership of the parent .AU domain) first requires the creation of each nameserver object with the AddNameserver command and desired IP address.

For further information ...

...and details on the transition our resellers are kindly requested to revisit the email notifications that we sent them.