How to Call Australia from the US

To call Australia from the US, dial 011 + 61 + Australian number (drop the leading 0). For Sydney: 011-61-2-XXXX-XXXX. For an Australian mobile: 011-61-4XX-XXX-XXX. The 011 is the US exit code; 61 is Australia’s country code.

This guide covers the exact dial format for every Australian city, mobile numbers, the 14–16 hour time gap, what calls cost, and how US businesses can serve Australian customers without missing calls while asleep.

How to dial Australia from the US

Follow these five steps from any US phone:

1. Dial 011 — the US international exit code. All US international calls start here. From a US mobile, you can substitute + (long-press the 0 key) instead of 011.
2. Dial 61 — Australia’s country code. This routes the call to the Australian network.
3. Dial the area code — without the leading 0. Australian numbers are written domestically with a leading 0 (e.g. 02 for Sydney). That 0 is a trunk prefix used only inside Australia. Drop it when dialing from the US.
4. Dial the 8-digit local number exactly as listed.
5. Press Call.

The complete pattern is 011 61 [area code without 0] [8-digit local number].

Mobile format: Australian mobiles start with 04xx domestically. Drop the 0 → dial 011 61 4XX-XXX-XXX.

If you see a number already in international format (e.g. +61 2 9012 3456), replace the + with 011 from a US landline, or dial it as-is with the + from a US mobile.

Australian area codes by major city

Australia uses single-digit area codes when dialing internationally — unusual compared to most countries. All landlines carry an 8-digit local number after the area code.

Area code	Domestic prefix	States / territories served	Example cities
2	02	NSW, ACT	Sydney, Canberra, Newcastle, Wollongong
3	03	VIC, TAS	Melbourne, Hobart, Geelong, Ballarat
7	07	QLD	Brisbane, Gold Coast, Cairns, Townsville
8	08	WA, SA, NT	Perth, Adelaide, Darwin

Dialing examples:

• Sydney landline 02-9012-3456 → from US: 011-61-2-9012-3456
• Melbourne landline 03-8765-4321 → from US: 011-61-3-8765-4321
• Brisbane landline 07-3456-7890 → from US: 011-61-7-3456-7890
• Perth landline 08-6123-4567 → from US: 011-61-8-6123-4567

The single-digit area code is unique to Australia — no other major country uses one-digit geographic area codes for an entire state.

Australian mobile numbers

All Australian mobile numbers begin with 04 domestically (e.g. 0412-345-678, 0487-654-321). When calling from the US, drop the leading 0 and treat the 4 as the routing digit:

Domestic format	Dial from US
0412-345-678	011-61-412-345-678
0487-654-321	011-61-487-654-321

You can identify any Australian mobile instantly: if the local number starts with 4 (after removing the trunk 0), it is a mobile. Landlines start with 2, 3, 7, or 8.

US carriers typically charge slightly more per minute for Australian mobiles vs landlines. Business VoIP plans like DialPhone’s business phone offer flat per-minute rates to both.

Time zones — Australia spans three main zones

Australia’s time zones are the biggest friction point for US-Australia business calls. The continent has three standard zones:

Zone	UTC offset	States / territories	Example city
AEST — Australian Eastern Standard Time	UTC+10	QLD, NSW, VIC, TAS, ACT	Sydney, Melbourne, Brisbane
ACST — Australian Central Standard Time	UTC+9:30	SA, NT	Adelaide, Darwin
AWST — Australian Western Standard Time	UTC+8	WA	Perth

Daylight saving complicates this further. NSW, VIC, TAS, SA, and ACT observe DST (clocks forward October–April — Australia’s summer). Queensland, Western Australia, and the Northern Territory do not. The US observes DST in the opposite hemisphere season (March–November), so the US–Australia offset shifts up to four times per year.

Quick reference (approx.) — US Eastern to Sydney:

US Eastern time	Sydney time (AEST)
9 AM ET	11 PM AEST (same night)
12 PM ET	2 AM AEST (next day)
5 PM ET	7 AM AEST (next day)
9 AM PT	2 AM AEST (next day)

The gap is typically 14–15 hours US ET → Sydney during US summer, and 15–16 hours during US winter (when Australia is in DST). Perth (AWST) runs 12–13 hours ahead of US ET.

This offset means a 9 AM Sydney business day is already finishing when the US East Coast opens. For US teams with Australian customers, the overlap window for live calls is narrow — roughly 7–9 AM US ET aligns with 9–11 PM Sydney, which is after-hours in Australia.

US to Australia calling costs

Method	Approx. rate	Notes
US mobile carrier (no add-on)	$0.50–$3.00+/min	Varies widely; AT&T pay-per-use can reach $3.64/min
US carrier international add-on	$0.20–$0.50/min	Monthly plan fee; cheaper but still significant
Skype / Google Voice	$0.01–$0.02/min	Landlines; mobiles slightly higher
Business VoIP (DialPhone)	Competitive flat rate	No add-on plan; included across all plans

For occasional personal calls, a VoIP app is cheapest. For US businesses making frequent calls to Australia — sales outreach, partner calls, customer support — a business VoIP platform like DialPhone is the practical choice.

DialPhone offers Australia calling at competitive per-minute rates on all plans, with no separate international add-on required. See DialPhone pricing for current Australia rates.

Calling Australian mobile vs landline from the US

The dial format from the US is the same regardless of mobile or landline. The only difference is the routing digit after the country code:

• Landline: 011 + 61 + [2, 3, 7, or 8] + 8-digit number
• Mobile: 011 + 61 + [4XX] + XXX-XXX

Both mobile and landline numbers are 10 digits total in domestic Australian format (including the leading 0). After dropping the 0, both are 9 digits following the country code.

Recognizing mobile vs landline matters for cost estimation (mobiles are often slightly pricier), but the dial procedure is identical.

SMS to Australia and the US business case

SMS to Australian mobile numbers works from US carriers at standard international rates (typically $0.25–$0.50 per message). Australia uses GSM, which is fully compatible with US SMS infrastructure.

For US businesses with Australian customers or team members, SMS is often more practical than voice given the time difference. A message sent at 5 PM US ET is waiting for the AU recipient at 7–8 AM their time.

Business VoIP platforms including DialPhone support SMS to Australia on compatible plans, with the same number your team uses for calls — no second tool required. This matters for US-AU sales teams, support queues, and partner coordination.

The AI receptionist advantage: With Sydney 14–16 hours ahead of US Eastern, your US business is asleep when Australian customers or partners call. DialPhone’s AI receptionist captures every inbound call around the clock — qualifying leads, taking messages, and routing urgencies — so your US team never misses an Australian inquiry overnight.

For US businesses that port or receive an Australian virtual number, outbound calls can present as a local AU number to Australian recipients. This builds trust with AU customers and routes over the lowest-cost path. See number porting guide for porting details and STIR/SHAKEN for how caller ID authentication works internationally.

Calling Australia FAQ

Calling Australia FAQ

What is Australia's country code? +

Australia's country code is +61. From a US phone, you reach it by dialing the US exit code 011 first, making the full prefix 011 61. On a US mobile you can substitute + for 011, so +61 followed by the Australian number (minus its leading 0) works the same way.

How do I call Sydney from the US? +

Sydney's area code is 2 (written 02 within Australia). From the US, dial 011 + 61 + 2 + 8-digit local number. Example: a Sydney number written as 02-9012-3456 becomes 011-61-2-9012-3456 from the US.

Drop the leading 0 — it is Australia's domestic trunk prefix and is not used when dialing from outside Australia.

How do I call an Australian mobile from the US? +

Australian mobile numbers all begin with 04 domestically (for example 0412-345-678). From the US, drop the leading 0 and dial 011 + 61 + 412-345-678.

Mobiles cost slightly more per minute than landlines on most US carrier plans. The format from US mobile is identical: +61-412-345-678.

Why do I have to drop the 0 when calling Australia? +

The leading 0 in Australian numbers (02, 03, 07, 08, 04xx) is the domestic trunk prefix — a routing digit used only inside Australia. When you call from the US, you replace it with the international prefix 011 and country code 61. Keeping the 0 in creates an invalid number that won't connect. This is the single most common reason US-to-Australia calls fail.

What is the time difference between the US and Australia? +

It depends on the Australian city and time of year. Sydney (AEST, UTC+10) is typically 14–15 hours ahead of US Eastern and 17–18 hours ahead of US Pacific during US daylight saving months.

Australia's summer (daylight saving) runs October–April — the opposite of the US — which means the offset shifts twice a year. Perth (AWST, UTC+8) is always 12 hours ahead of US Eastern standard time.

Does +61 work from a US mobile to call Australia? +

Yes. On any US mobile, you can dial +61 followed by the Australian number minus its leading 0. The + symbol auto-resolves to the local exit code (011 from the US). This is the recommended format to save Australian numbers in your contacts — it works whether you are in the US or roaming internationally.

What is the cheapest way to call Australia from the US? +

VoIP services are consistently the cheapest option. Google Voice charges around $0.01–$0.02 per minute to Australian numbers. Business VoIP platforms like DialPhone include Australia calling at competitive flat per-minute rates with no international add-on plans required.

US carrier international add-ons typically run $0.20–$0.50 per minute for Australia. Pay-as-you-go carrier rates without a plan can reach $1.50–$3.00+ per minute.

Can I send SMS to Australia from the US? +

Yes. Most US mobile carriers support SMS to Australian numbers at standard international SMS rates (typically $0.25–$0.50 per message). Business VoIP providers including DialPhone support SMS to Australia on compatible plans. Australia uses GSM, which is compatible with US SMS infrastructure. Dial format for SMS is the same as voice: +61 followed by the Australian mobile number without the leading 0.

Get a business phone with Australia calling

DialPhone includes international calling to Australia on all plans — no add-ons, no per-country unlocking required. Combined with our AI receptionist, US teams can cover Australian business hours without round-the-clock staffing.

• Start a free trial — includes Australia calling
• DialPhone business phone — full feature overview
• DialPhone pricing — current per-minute rates for Australia

Related guides:

• How to call the UK from the US — same pattern, +44 and different area codes
• Number porting guide — port an Australian number to your US VoIP account
• STIR/SHAKEN explained — how caller ID authentication affects international calls