Austria country code, +43 explained.
The country code for Austria is +43. To call Austria from the US, dial 011 43, then the 3-digit area code and the local number. Below: the full dialing format, step-by-step guide, carriers, rates, and VoIP rules for Austria.
Austria
Vienna · Europe
· COUNTRY INFO · VERIFIED
ISO Alpha-2
AT
Capital
Vienna
Region
Europe
Timezone
UTC+1
· DIALING GUIDE · VERIFIED
FULL DIAL FORMAT
011 · +43 · XXX · XXXXXXX
How Austria numbers break down
A complete number to Austria follows this pattern. Twiching adds the exit and country codes automatically when you dial from the app.
EXIT CODE
Dial from the US/Canada to leave the country.
COUNTRY CODE
Routes the call directly into Austria.
AREA / MOBILE
Regional or mobile prefix — drop the leading 0.
LOCAL NUMBER
The subscriber's local number.
COMPLETE NUMBER FORMAT
011 · +43 · XXX · XXXXXXX
Austria on the map
Vienna · Europe
ROUTE
Tier-1 Direct
CLI
Verified
ASR
60%+ min
SIP trunking and local numbers for Austria
A Austria virtual number from Twiching plugs into SIP trunking. Your existing phone system can dial out with local +43 presence. You don't need new hardware or a new carrier.
Local +43 caller ID
Calls display a recognisable Austria number instead of an unfamiliar international one.
SIP trunking
Route your existing PBX or softphone through Twiching's Tier-1 trunk — no hardware swap.
Minutes to provision
Numbers activate in the dashboard the same day, with no on-the-ground carrier contract.
+43
Austria · ready to provision today
Built for reliable delivery into Austria
Austria is not a secondary market. It runs on the same direct-carrier routing and delivery guarantees as every other country in the directory.
Austria
+43
191
Countries in directory
AUSTRIA INCLUDED
99.97%
Call delivery rate
STIR/SHAKEN
500+
Carrier interconnects
TIER-1 DIRECT
60%+
Guaranteed ASR
REAL-TIME ROUTING
How Austria phone numbers are structured
Numbering Format
COUNTRY
+43
AREA
XXX
LOCAL
XXXXXXX
Austria uses an open numbering plan under country code +43. After the country code comes a 3-digit area or mobile prefix. Then comes a 7-digit subscriber number. Together that is a 10-digit national number. Domestic numbers often start with a trunk "0". Leave it out when you call Austria from abroad.
Carriers & language
Austria has 93% internet penetration. It has 3 major mobile networks: A1 Telekom Austria, Magenta Telekom, Drei Austria. VoIP is permitted and regulated by RTR (Rundfunk und Telekom Regulierungs-GmbH). The local currency is EUR. The main language is German. Both shape IVR prompts, SMS content and business hours.
Europe context
Most European numbering plans follow ITU-T E.164. They use a national trunk prefix that is dropped for international dialing. Cross-border VoIP is widely supported across the region.
Skipping the exit code
Austria calls from the US need 011 first, then +43 — the exit code isn't optional.
Keeping the national trunk "0"
If an Austria number is written with a leading 0 for domestic use, omit that 0 after the +43 country code when calling from abroad.
Ignoring the time difference
Before dialing Austria, check the local clock — it runs on UTC+1, and off-hours calls tend to go unanswered.
Compliance, carriers & rates for Austria
Permitted — RTR regulated
Regulated by RTR (Rundfunk und Telekom Regulierungs-GmbH)
VoIP is openly regulated in Austria under RTR (Rundfunk und Telekom Regulierungs-GmbH). You face no licensing hurdle before routing calls or SMS through a compliant provider like Twiching.
- VoIP services are regulated under the Austrian Telecommunications Act (TKG 2021) and must be registered with RTR.
- Lawful interception obligations apply to all VoIP providers under the Security Police Act.
- Number portability is fully mandated, including for VoIP-assigned geographic numbers.
Direct Tier-1 interconnect with A1 Telekom Austria — no wholesale transit in between.
US → Austria
$0.009/min
Austria → US
$0.008/min
Billed per second, not rounded to the minute
How businesses use an Austria number
Vienna-recognisable numbers
Callers in Vienna and across Austria see a familiar +43 prefix. They are less likely to ignore it.
Sales & support in one line
One Austria number can handle inbound support and outbound sales. Both calls use Tier-1 routes into A1 Telekom Austria and the wider network.
Time-zone-aware routing
Calls into Austria go to the team on shift for UTC+1. They don't ring a desk where everyone has gone home.
SIP trunking for market entry
Set up an Austria presence on SIP trunking before you commit to local infrastructure. The same number scales from a pilot to full local hiring.
FAQ
Calling Austria — frequently asked questions
The country code for Austria is +43. To call from the United States, dial 011, then 43, then the local number. Twiching adds the 011 and +43 for you when you dial from the app. You only enter the local number.
Dial 011 (the US exit code), then 43 (the Austria country code). Then dial the area or mobile prefix and the subscriber number. Drop any leading trunk 0. That digit is only used for calls made inside Austria.
A1 Telekom Austria is among the largest networks in Austria. Twiching connects directly with it for Tier-1 delivery. Direct links like this keep call quality and answer rates steady. Lower-tier transit does not.
Two slip-ups are common. One is forgetting the 011 exit code before +43. The other is keeping a domestic leading "0" that should be dropped. Either mistake makes the call fail. It does not reach a wrong number.
Yes. Twiching provides Austria virtual numbers with local +43 caller ID for calls and, where supported, SMS. A local number gets answered more often than an unfamiliar international one. That helps with sales, support and building a local presence.
Yes. Austria is one of 191+ countries in Twiching's directory. Virtual numbers, SIP termination and Tier-1 routing are available. You manage it on the same platform as every other country in the directory.
Full country code directory
Europe is fully covered in Twiching's 191-country directory. Jump to any of the markets below for the same level of detail shown on this Austria page. All 190 other countries are listed below, Europe first.
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