
The Data Universal Numbering System, abbreviated as DUNS or D-U-N-S, is a proprietary system that assigns a unique nine-digit numeric identifier, referred to as a DUNS number, to a single business entity. DUNS was introduced in 1963 to support credit reporting practices and is now standard worldwide. In this context, what is the significance of DUNS numbers in Australia, and how are they applied for and used in the country's business landscape?
| Characteristics | Values |
|---|---|
| Full Form | Data Universal Numbering System |
| Abbreviation | DUNS or D-U-N-S |
| Description | A unique 9-digit identification number assigned to businesses |
| Applicability | Applicable to each physical location of the business where it is conducted |
| Usage | Used by the European Commission, the United Nations, Google, and Apple |
| Users | More than 50 global industry and trade associations recognize, recommend, or require DUNS |
| Database | The DUNS database contains over 300 million entries for businesses throughout the world |
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What You'll Learn

History of the DUNS number
The Data Universal Numbering System, abbreviated as DUNS or D-U-N-S, was introduced in 1963 by Dun & Bradstreet (D&B) to support their credit reporting practice. It is a proprietary system that assigns a unique nine-digit numeric identifier, referred to as a "DUNS number", to a single business entity and each physical location where business is conducted. This system is recognised worldwide, with users including the European Commission, the United Nations, Google, and Apple. More than 50 global industry and trade associations recognise, recommend, or require DUNS.
The DUNS database contains over 300 million entries for businesses worldwide, and the number is issued by D&B to each business location in their database with a unique and distinct operation. From October 2003 to April 2022, the United States government required that all organisations doing business with the federal government use a DUNS number as an identifier. This requirement was replaced by the Unique Entity ID created in SAM.gov. Prior to the adoption of DUNS numbers, the US government utilised another coding system known as ACASS, which was abolished in October 2005 when a modernised platform replaced the ACASS system.
The D-U-N-S Number is particularly useful for identifying businesses that operate under the same name or businesses that have changed names. It is also beneficial for identifying branches or subsidiaries of larger organisations. Obtaining a DUNS number is free of charge, and it can be applied for on the D&B website or a country-specific website operated by D&B. The DUNS number is often requested during the Advertiser verification process or when applying for monthly invoicing payment settings, helping teams assess applications faster.
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Who uses DUNS numbers?
A DUNS number, or Dun & Bradstreet Number, is a unique nine-digit identification code attributed to an organisation and its business locations. In Australia, it appears that any organisation with an ABN (Australian Business Number) is automatically assigned a DUNS number from the USA.
DUNS numbers are used by a variety of organisations and for several purposes. Primarily, they are used by businesses and government agencies to keep track of their various locations and branches. This is especially important for large corporations with multiple offices or stores, as well as for franchises, where each individual location may have its own DUNS number.
Businesses may also use DUNS numbers to identify and verify their suppliers, partners, and customers. This helps to ensure that the company is dealing with legitimate and reputable organisations, and can also assist in managing supply chains and tracking orders.
Additionally, DUNS numbers can be used by marketing and sales teams to identify potential clients and customers. By searching for organisations by their DUNS number, businesses can gain access to key information such as the company's size, location, and industry, which can help inform their sales and marketing strategies.
Finally, DUNS numbers are also used by financial institutions and credit reference agencies. They can help to assess the creditworthiness of a business when applying for a loan or financing, and the unique identifier allows for quick and easy access to the company's credit history and financial information.
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Applying for a DUNS number
A D-U-N-S (Data Universal Numbering System) number is a globally recognised nine-digit identification number assigned to businesses. If you are based in Australia, you can apply for a DUNS number by following the steps outlined below:
Firstly, check whether your organisation already has a DUNS number. You can do this by using the D&B D-U-N-S Number Lookup tool. It is important to do this before submitting a request application, as your organisation may already have a DUNS number.
If your organisation does not already have a DUNS number, you will need to register with Dun & Bradstreet. This can be done by visiting the D&B website at www.dnb.com. Alternatively, you can try searching for 'D&B' along with the name of your country in a search engine. If your business is registered with the Australian Securities and Investments Commission (ASIC), be sure to provide your organisation's ASIC details upon registering with Dun & Bradstreet to ensure a faster turnaround on your application. It is also advised to follow the Apple Developer Program prompts to secure a more timely response, usually within five business days.
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DUNS number alternatives
The Data Universal Numbering System, or DUNS, is a system that assigns a unique nine-digit identification code to a single business entity and each physical location where business is conducted. It was introduced in 1963 to support Dun & Bradstreet's (D&B) credit reporting practice.
While DUNS is a standard worldwide, with users including the European Commission, the United Nations, Google, and Apple, there are alternative identification numbers that serve similar purposes. Here are some alternatives to DUNS numbers:
- Employer Identification Number (EIN): This number is used by the US government to identify businesses for tax purposes. It is similar to a Social Security Number for businesses. While it is specific to the US, it serves a similar purpose as the DUNS number in identifying businesses uniquely.
- Value-Added Tax (VAT) Number: In many countries, businesses are required to register for VAT if their turnover exceeds a certain threshold. A VAT number is a unique identifier that allows businesses to collect and account for VAT charged on goods and services. This number is used for tax purposes and is an alternative to a DUNS number in countries that do not use the DUNS system.
- Business Registration Number: In some countries, businesses are required to register with a government agency and are assigned a unique registration number. This number serves as an official identifier for the business and can be used as an alternative to a DUNS number.
- Australian Business Number (ABN): In Australia, an ABN is a unique 11-digit identifier for businesses. It is used for various purposes, including tax and business registration. An ABN is automatically allocated to a business when it registers with the Australian Business Register. This serves as an alternative to a DUNS number for Australian businesses.
These alternatives may serve similar functions to DUNS numbers in identifying businesses, but they may have different scopes, applications, and issuing authorities. The choice of using an alternative depends on the specific requirements, regulations, and standards applicable to the business and its operations.
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DUNS number uses
A DUNS number, or Dun & Bradstreet Number, is a unique nine-digit identification code attributed to a business organisation and its physical location(s).
The DUNS number serves as a universal identifier for businesses, enabling them to establish a credit file and gain recognition from organisations and government entities. One of its primary uses is to help businesses register for specific programs or platforms, such as Apple's Developer Program. Apple, for example, uses the DUNS number to verify the identity and legal entity status of an organisation.
Additionally, the DUNS number is beneficial when dealing with government entities, such as the Australian Securities and Investments Commission (ASIC). Registration with ASIC can expedite the processing of a DUNS number application, demonstrating the integration of the DUNS number within Australia's business ecosystem.
Businesses can utilise the D&B D-U-N-S Number Lookup tool to determine if they already possess a DUNS number before initiating a new application. If a business does not have a DUNS number, it can register directly with Dun & Bradstreet to obtain one.
The DUNS number is specifically designed to provide a standardised and globally recognised identifier for businesses. This number simplifies the process of verifying a business's identity, legal status, and creditworthiness, thereby facilitating smoother commercial interactions and transactions.
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Frequently asked questions
DUNS stands for Data Universal Numbering System. It is a system that assigns a unique 9-digit identification number to businesses.
A DUNS number is used to identify a business entity and each physical location where business is conducted. It is a standard worldwide and is used by organisations such as the United Nations and Google.
You can apply for a DUNS number for free by visiting the Dun & Bradstreet (D&B) website.
No, a DUNS number is not required to run Google Ads. However, it may help the Google team assess your application faster.
















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