
In Australia, landline phone numbers have a variable, permissive dialling plan. They have no more than 10 digits, with 2 digits for the area code and 8 digits for the rest of the number. For mobile phone numbers, the Australian national trunk code is 04, followed by 8 digits. The international country code for Australia is 61. Many scam phone calls have been reported in Australia, with callers impersonating government agencies, using overseas call centres, and pretending to be from legitimate companies. It is important to be cautious when receiving calls from unknown numbers and to protect yourself from potential scams.
| Characteristics | Values |
|---|---|
| Country code | +61 |
| Landline numbers | 2 digits for the area code followed by 8 digits for the rest of the telephone number |
| Mobile numbers | 10 digits, starting with 04 |
| Mobile numbers (international format) | +61 4XX XXX XXX |
| ITERRA satellite phone code | 0071 |
| ITERRA satellite phone replacement code | 01471 |
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What You'll Learn

Australian mobile numbers begin with 04
Australian mobile numbers typically begin with 04, followed by eight digits. This is the Australian national trunk code 0, plus the mobile indicator 4. So, a mobile number in Australia will usually be written as 04XX XXX XXX.
The format is the result of mobile carriers advertising numbers in a way that clearly identifies the owning telco before mobile number portability was introduced on 25 September 2001.
Before mobile number portability, mobile operators generally reserved number ranges in blocks of 04 xy z, with the xy-digit codes allocated per network. Since the introduction of number portability, there is no longer a fixed relationship between the mobile phone number and the network it uses.
In 2015, the prefix 05 was reserved for digital mobile phones as part of the Telecommunications Numbering Plan 2015. However, as of 2024, no numbers have been allocated with this prefix.
In Australia, mobile numbers must always be dialled with all ten digits, regardless of the caller's location. Landline numbers, on the other hand, are written with a 2-digit area code followed by an 8-digit number.
There are some exceptions to the 04 range for mobile numbers. Numbers beginning with 014 are predominantly used for satellite services, and the prefix 0145 is used for services on the Optus network, specifically for MobileSat and Thuraya mobile satellite services.
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Landline numbers have 2 digits for the area code
When dialing a landline number in Australia, it is important to note that the area code is always required. Landline numbers in Australia typically have two-digit area codes, which are assigned based on the geographical location of the number. The two-digit area code is followed by an eight-digit local number. For example, a Melbourne landline number may have an area code of "03," followed by eight digits, such as "9876 5432." This format helps to route calls to the correct location and exchange within Australia's telephone network. It is worth mentioning that when writing a landline number, it is common to include the area code in parentheses, such as "(03) 9876 5432." This helps to visually separate the area code from the local number.
The two-digit area codes for landlines in Australia are assigned to specific regions or states. For example, the area code "02" is typically used for New South Wales, while "03" is assigned to Victoria. By dialing the correct area code, calls can be directed to the intended location more efficiently. It is important to remember that when calling a landline number in Australia, one should always use the two-digit area code, followed by the eight-digit local number, regardless of where one is calling from within the country. This ensures that the call is routed correctly and connects to the desired landline number without any issues.
In certain cases, some area codes may have a "0" prefix when written, such as "(07) 5555 6666." This additional "0" is not always required when dialing domestically within Australia, as it serves as a trunk code for accessing Australia's telephone network. However, when calling an Australian landline number from overseas, the trunk code "0" may need to be omitted, and the country code "+61" should be dialed instead. For example, an international caller may dial "+61 7 5555 6666" to reach the same number. The "+" symbol represents the international access code, which varies depending on the country from which the call is being made.
It is worth noting that area codes in Australia are not always exactly two digits. Some area codes may have three digits, especially in areas with a high demand for telephone numbers. These extended area codes help accommodate the need for more telephone number combinations within a specific region. When encountering a three-digit area code, the same principles apply: simply dial the three-digit area code followed by the local number when calling within Australia, or use the country code and omit the trunk code when calling from overseas.
Understanding area codes is particularly important when managing business or personal communications. By correctly dialing the area code, you can ensure that your calls reach the intended recipient without any issues or errors in routing. Additionally, being familiar with area codes can help you recognize where a phone number is based, which can be useful for various practical and analytical purposes, such as marketing or customer service. It is always a good idea to double-check the area code before placing an important call to avoid any misunderstandings or connection problems.
In conclusion, when dialing landline numbers in Australia, remember to include the two-digit area code, followed by the eight-digit local number. This format ensures that your calls are properly routed to the correct location and exchange. With Australia's organized telephone numbering plan, area codes play a vital role in efficient call routing and help identify the geographical origin of a phone number. By following the provided guidelines, you can confidently make domestic and international calls to Australian landline numbers without any hassle.
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The country code for Australia is 61
Australian landlines are geographically divided into four areas, three of which cover more than one state or territory. All local landline numbers within these four areas have eight digits, consisting of a four-digit exchange code and a four-digit local line number. The national significant number consists of a single-digit area code followed by the local eight-digit number, a total of nine digits. When calling a landline in Australia, the phone number is preceded by the Australian trunk prefix '0' and the area code: 0x xxxx xxxx.
Mobile phone numbers in Australia always have ten digits and begin with 04, the Australian national trunk code 0, plus the mobile indicator 4. This is generally written as 04XX XXX XXX within Australia, or as +61 4XX XXX XXX for an international audience.
Other phone number prefixes in Australia include 01471, which is a ten-digit replacement for the previous nine-digit ITERRA satellite phone code 0071. Numbers beginning with 0145 are used for services on the Optus network in Australia, including MobileSat and Thuraya mobile satellite services.
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Scam number: 0421 077 421
The phone number 0421 077 421 has been identified as a scam by multiple users on Reverseau.com, a free reverse phone lookup service in Australia. People who have received calls from this number have reported that the caller claims to be from HotDoc and states that there is an overdue charge linked to a recent appointment. The message then prompts the recipient to submit their details for a refund by visiting a website. However, those who have received this message have stated that they have never dealt with HotDoc and believe the call to be a scam.
One person recounts their experience with this number, describing how the caller, who identified himself as David, became extremely aggressive and demanded personal information, including their name, address, driver's license number, and bank account details, under the pretext of clearing their name. When the recipient refused and stated that they would deal directly with the police, the caller threatened to call repeatedly from different numbers until they obtained the requested information.
It is important to exercise caution when receiving calls or messages from unknown numbers, especially when they request personal or financial information. It is recommended to verify the legitimacy of the caller by contacting the company or organization they claim to represent directly through official channels. Additionally, using reverse phone lookup services like Reverseau.com can help identify potential scams and protect yourself from becoming a victim of fraud.
If you receive a suspicious call or message, you can report it to the relevant authorities or scam-reporting websites to help spread awareness and protect others from potential scams. Staying vigilant and informed can help minimize the risk of falling prey to fraudulent activities.
In summary, the phone number 0421 077 421 has been identified by multiple individuals as a scam. The callers pretend to be from HotDoc and attempt to obtain personal information by claiming overdue charges. It is crucial to be cautious when dealing with unknown callers and always prioritize protecting your personal and sensitive information.
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International calls to Australia need the full number
When placing an international call to Australia, it is important to ensure that you are dialing the correct and full number. The Australian phone number system typically consists of 10 digits, including the area code and the phone number. Omitting any part of this full number will result in an unsuccessful call connection.
To break it down, an Australian phone number begins with a 2-digit area code, which varies depending on the region or state. For example, the area code for Sydney is 02, while for Melbourne, it is 03. These area codes are an integral part of the phone number and must be included when dialing internationally. Following the area code, there is a 4-digit exchange number, which directs the call to a specific telephone exchange or region within the area code. Lastly, the remaining 4 digits are the unique subscriber number, identifying the individual phone line.
When placing an international call to Australia, you must also include the country code, which is +61. This country code must precede the 10-digit Australian phone number. For instance, if you are calling a Sydney number, say, 2222 3333, from overseas, you would dial +61 2 2222 3333. The "+" symbol represents the international access code and varies depending on the country from which you are calling. Usually, it is 011 from the US, 00 from the UK or Europe, and 0011 from within Australia if you are making an international call.
Ensuring you have the correct and full number is crucial for a successful international call to Australia. Always verify the number with your contact or source to avoid misdialing and any potential connection issues. Remember to account for time zone differences as well, as these can impact the success of your call. By following the correct international dialing format and including the country code and full Australian phone number, you can confidently connect with your desired contact down under.
Additionally, it is worth noting that some Australian phone numbers may have a different format, such as a 1300 or 1800 number. These are toll-free numbers within Australia and have varying dialing procedures from international locations. Always refer to official sources or local telecommunication guidelines for specific instructions on dialing these numbers from your country of origin. As international calling rates may apply, it is also beneficial to explore alternative calling options, such as VoIP services or international calling plans, to manage costs effectively.
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Frequently asked questions
The country code for Australia is 61.
To call an Australian number from overseas, dial the international prefix + (plus symbol), followed by the country code 61, and the phone number.
Australian phone numbers in general use have no more than 10 digits. Landlines have 2 digits for the area code, followed by 8 digits for the rest of the number. Mobile numbers have 10 digits, with no area code.
The Australian national trunk code is 0.













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