System Maintenance.

We are doing planned system maintenance from Saturday 7 September 2024 to Sunday 8 September 2024 between 10:00pm and 12:00pm (AEST). During this time, the ABN refresh service will be unavailable. Users may experience delays with their ABN's appearing on the Lookup services.

We are updating our IP address on Thursday, 26 September 2024.

The new IP addresses are:

ABN Lookup 192.199.33.8
Superfund Lookup 192.199.33.10

Update your whitelist to include these new IP addresses. We recommend using our full web addresses https://abr.business.gov.au and/or https://superfundlookup.gov.au when accessing our services. Accessing by other names or by IP address will be blocked and disabled in the near future.

Historical details for ABN 31 498 862 554Version: 9.9.7

ABN details help
Entity name From To
SIBBING, MARK ADRIAN 16 Jun 2010 (current)
SIBBING, MARK A 08 Aug 2005 16 Jun 2010
ABN Status From To
Cancelled 17 Jun 2019 (current)
Active 15 Jun 2015 17 Jun 2019
Cancelled 27 Jan 2015 15 Jun 2015
Active 08 Aug 2005 27 Jan 2015
Entity type
Individual/Sole Trader
Goods & Services Tax (GST) From To
No current or historical GST registrations
Main business location From To
QLD 4564 15 Jun 2015 (current)
VIC 3806 22 Sep 2014 15 Jun 2015
VIC 3806 16 Jan 2014 22 Sep 2014
VIC 3806 08 Aug 2005 16 Jan 2014
Business name(s) help
Business name From To
NEGENTROPY External site 08 Aug 2005 05 Aug 2008
Trading name(s) help
From 1 November 2025, ABN Lookup will not display trading names and will only display registered business names. For more information, click help.
Trading name From To
NEGENTROPY 08 Aug 2005 (current)

Disclaimer

The Registrar makes every reasonable effort to maintain current and accurate information on this site. The Commissioner of Taxation advises that if you use ABN Lookup for information about another entity for taxation purposes and that information turns out to be incorrect, in certain circumstances you will be protected from liability. For more information see disclaimer.

Warning Statement

If you use ABN Lookup for information about a person or entity that provides financial or investment products or advice, make sure they have an Australian Financial Services (AFS) licence. You can check licenced professional registers here.

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