Austria country code, +43 explained.
Everything you need to call Austria with Twiching — full dialing format, step-by-step guide, and Tier-1 CLI routes that land every call.
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
How to call Austria
Click any step — watch the full dial string build piece by piece.
FULL NUMBER FORMAT
011 · +43 · XXX · XXXXXXX
Twiching automatically adds the exit and country codes — just enter the local number.
Austria —
connected across every carrier.
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
Austria
Europe · AT
Austria numbering plan & how to dial
Austria uses an open numbering plan under country code +43. After the country code, a 3-digit area or mobile prefix is followed by a 7-digit subscriber number, giving a 10-digit national number. Domestic numbers are often written with a leading trunk "0" that is omitted when dialing Austria from abroad.
Austria has 93% internet penetration and is served by 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 and the primary language is German, which shape IVR prompts, SMS content, and business-hours handling.
Most European numbering plans follow ITU-T E.164 with a national trunk prefix that is dropped for international dialing, and 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 a 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.
Permitted — RTR regulated
Regulated by RTR (Rundfunk und Telekom Regulierungs-GmbH)
- 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.
US → Austria
$0.009/min
per minute
Austria → US
$0.008/min
per minute
Business calling to Austria
Local AT caller ID
Present a Austria +43 number so prospects in Vienna and nationwide recognise the call and are more likely to answer.
Europe outbound & support
Run sales and support lines into Austria over Tier-1 routes that interconnect with networks like A1 Telekom Austria.
Follow-the-sun coverage
Staff Austria hours (UTC+1) with routing that sends calls to the right team at the right local time.
FAQ
Calling Austria — frequently asked questions
A1 Telekom Austria is among the largest networks in Austria, and Twiching interconnects directly with it for Tier-1 delivery. Direct interconnects like this are what keep call quality and answer rates consistent instead of relying on lower-tier transit.
The two most common slip-ups are forgetting the 011 exit code before +43, and keeping a domestic leading "0" that should be dropped. Both mistakes result in the call failing to connect rather than reaching the wrong number.
Yes. Twiching provisions Austria virtual numbers with local +43 caller ID for calls and, where supported, SMS. A recognisable local number tends to get answered more often than an unfamiliar international one, which makes it useful for sales, support, and building local market presence.
Yes — Austria is one of 191+ countries in Twiching's directory, with virtual numbers, SIP termination, and Tier-1 routing available. It's part of the same platform used to manage numbers across every other country in the directory.
Calling Austria means dialing 011, then +43, instead of the domestic US format — plus accounting for the UTC+1 time difference. Domestic US calls skip both the exit code and the international country code entirely.
Yes — Austria numbers include a 3-digit area or mobile prefix before the subscriber number. That prefix is what routes the call to the right regional or mobile network once it arrives in the country.
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