Quick answer: Inside Australia, every number carries a leading 0 (the trunk code). When dialing from overseas, drop that 0 and use the +61 country code instead. Landlines use a 2-digit area code (02, 03, 07, 08) plus 8 digits; mobiles start with 04 and have no area code.
One small digit causes more failed calls to Australia than anything else: the leading zero. Dial it from overseas and the call dies. Drop it inside Australia and it dies too.
That single rule trips up travelers, expats, and businesses every day. Once it clicks, the rest of the Australian phone number format is genuinely simple.
This guide lays out the +61 country code, the geographic area codes, mobile prefixes, and special service numbers — with examples you can copy and dial correctly from anywhere.
The Building Blocks
Every Australian number is built from a few fixed parts. Get these straight and the whole system makes sense.
Inside the country, numbers carry a leading 0 — the trunk code. Internationally, that 0 is replaced by the +61 country code.
The Country Code: +61
Australia's country code is +61. You use it for every call placed from outside the country.
The plus sign stands in for your local international access prefix — your phone dials the right one automatically.
The Trunk Code: That Leading 0
Every domestic Australian number starts with 0. It tells the network you're making a national-level call.
Here's the rule that matters most: when dialing from abroad, you drop that 0 entirely. +61 already does its job.
Landline Numbers and Area Codes
Australian landlines use a 2-digit area code followed by an 8-digit local number. The area code marks the geographic region.
There are four geographic area codes, and they cover the whole continent.
The Four Area Codes
Each code maps to a region, not a single city.
| Area code | Region |
|---|---|
| 02 | New South Wales and the ACT |
| 03 | Victoria and Tasmania |
| 07 | Queensland |
| 08 | Western Australia, South Australia, NT |
How a Landline Is Written
A Sydney landline looks like (02) 9876 5432 within Australia.
For an international audience, the same number becomes +61 2 9876 5432 — the 0 dropped, the +61 added.
Mobile Numbers Work Differently
Australian mobiles have no area code at all. Instead, every mobile number begins with the prefix 04.
A mobile is 10 digits domestically: 04 followed by eight more.
The Mobile Prefix: 04 (and Soon 05)
All current Australian mobile numbers start with 04. The standard local format is 04XX XXX XXX.
Regulators have reserved 05 as a future mobile prefix — it will be released only once 04 combinations run out.
Writing a Mobile Number
Domestically, a mobile is written as 04XX XXX XXX.
For international use, drop the 0 and add the country code: +61 4XX XXX XXX. That's the form you want in an email signature or website.
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Special Service Numbers
Beyond standard landlines and mobiles, Australia uses several special prefixes. These don't follow the area-code rules.
They're built for business and emergency use, and most are non-geographic.
Toll-Free and Local-Rate Numbers
These three are the ones you'll meet most often:
- 1800 — toll-free; free to the caller from landlines and mobiles
- 1300 — local-rate; the caller pays only a low fixed cost
- 13 — a shorter local-rate format, six digits total
The 13 and 1300 numbers work nationwide, which makes them popular for customer-service lines.
Emergency Numbers
Australia's emergency number is 000, free from any phone nationwide.
From a mobile, 112 also connects to emergency services and works even without network credit.
How to Dial Australia Correctly
Most failed calls come down to the leading 0. Here's the rule, split by direction.
Dialing within Australia? Keep the 0. Dialing from outside? Drop the 0 and use +61.
Calling From Overseas
To reach an Australian number from abroad, dial in this order:
- Your international access code, or simply +
- The country code 61
- The area code or mobile prefix without its leading 0 (so 2, 3, 7, 8, or 4)
- The remaining digits
Example: that Sydney landline becomes +61 2 9876 5432, and a mobile becomes +61 4XX XXX XXX.
Calling Within Australia
For a local call in the same region, you can often dial just the 8-digit landline number.
For any call to another region or to a mobile, dial the full number including the leading 0.
Getting an Australian Number From Anywhere
You don't need to live in Australia — or hold an Australian SIM — to use an Australian number. A virtual number handles it in software.
It rings on the phones, laptops, and apps your team already uses, anywhere on earth.
Why Businesses Use Australian Virtual Numbers
A local Australian number signals you're reachable and established in the market.
You get call forwarding, voicemail, and business-hours routing, plus the option to add 1800 or 1300 lines for customer support.
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The Bottom Line
The Australian phone number format is logical once the trunk-code rule lands: keep the 0 at home, replace it with +61 abroad. Everything else — area codes, the 04 mobile prefix, the 1800 and 1300 ranges — slots in around that.
Save the examples above. They cover the calls you'll actually make, in the formats that actually connect.
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FAQs
What is the country code for Australia?
Australia's country code is +61. You use it for every call placed from outside the country, in place of the number's leading 0.
Why do I drop the 0 when calling Australia from overseas?
The leading 0 is a domestic trunk code that only works inside Australia. From abroad, the +61 country code does that job, so the 0 must be removed.
How many digits is an Australian phone number?
A domestic landline is 10 digits: a 2-digit area code plus an 8-digit local number. A mobile is also 10 digits: the 04 prefix plus eight more.
How do I recognize an Australian mobile number?
Australian mobiles begin with 04 and have no area code. Written for international use, they appear as +61 4XX XXX XXX.
What are 1300 and 1800 numbers in Australia?
1800 numbers are toll-free to the caller. 1300 numbers charge the caller a low local rate. Both work nationwide and are common for business support lines.
What is the emergency number in Australia?
The emergency number is 000, free from any phone. From a mobile, 112 also reaches emergency services and works even without network credit.
Can I get an Australian phone number without living in Australia?
Yes. A virtual Australian number gives you a local landline or mobile-style line from anywhere, with no SIM or local address required. Calls route to your existing devices.
