Network & carriers
Austria's telecom market is regulated by RTR, with A1, Magenta, and Drei as the major network operators.
+43 · AT · UTC+1
Austria
Country Code & Virtual Numbers
Austria's +43 code covers a numbering system regulated by RTR, with Vienna's 01 code anchoring the country's largest business hub. Capital: Vienna · Business hours: 3:00 AM–11:00 AM EST.
// The Basics
What is the +43 country code?
Numbering in Austria is administered by Rundfunk und Telekom Regulierungs-GmbH (RTR).
Numbering format
Austrian numbers drop the leading 0 internationally — a Vienna number written domestically as 01 234 5678 becomes +43 1 234 5678.
Calling culture
Austrian business culture places weight on formality and titles — using proper titles and a professional tone is expected, especially in initial contact.
Did you know
Austria has 1,022 local network areas, each with its own area code of one to four digits — Vienna's is the shortest, 1.
// Quick Facts
A quick read on Austria numbers.
Austrian numbers drop the leading 0 internationally — a domestic 01 number becomes +43 1 when dialed from abroad.
From the US: 011 43 1 XXX XXXX
// Reference
Dialing +43: numbers, codes and rules
- Trunk prefix
- 0 — used domestically, dropped after the country code.
- Number length
- Variable; geographic area codes are 1–4 digits followed by a subscriber number (7 digits in Vienna)
- Mobile numbers
- 3-digit mobile code (650–699, e.g. 664, 676) plus a 7- to 9-digit subscriber number: +43 6XX XXXXXXX
- Landlines
- Area code (written without the 0) plus subscriber number: +43 1 XXX XXXX for Vienna
- Major area codes
- Vienna 1
- Graz 316
- Linz 732
- Salzburg 662
- Innsbruck 512
- Klagenfurt 463
- Dialing in
- From the US: 011 43 1 XXX XXXX
- Dialing out
- 00 is the international prefix from Austria.
- Useful numbers
- Emergency (EU-wide): 112
- Police: 133
- Ambulance: 144
- Fire: 122
- Time zone
- CET (UTC+1); CEST (UTC+2) in summer
- Daylight saving
- Clocks go forward on the last Sunday of March and back on the last Sunday of October (EU rule).
- Working week
- Monday–Friday; weekend: Saturday–Sunday
- Under RTR's 9th amendment to the KEM-V numbering regulation (2023), calls from abroad showing an Austrian number are checked and the number is suppressed if it cannot be verified.
- Austria has 1,022 local network areas, each with its own area code of one to four digits.
Reported scam patterns
- Fraudsters have called from abroad using spoofed Austrian numbers while posing as large online retailers and technology companies. source
Sources
- RTR – telephone number ranges (mobile 650–699, 0800, short numbers)
- RTR Open Data – local networks (Ortsnetze) description
- RTR Open Data API – area code list
- ITU-T E.164 national numbering plan for Austria
- RTR – explanatory notes to the 9th KEM-V amendment (anti-spoofing)
- oesterreich.gv.at – emergency numbers
- Stadt Wien – public holidays
- Vienna.at (APA) – new regulation against spoofing calls
Best time to call Austria from the US
Austria is on UTC+1 · Business hours = – EST · Mon–Fri
// Why a Virtual Number
Why get a Austria virtual number?
A +43 virtual number gives your business instant local presence in Austria — without the overhead.
Local caller ID in Austria
When you call from your virtual Austria number, contacts see a local +43 number — dramatically improving answer rates.
No office needed
Establish a local presence in Austria without renting space, hiring locally, or installing any hardware.
Instant credibility
A local +43 number signals genuine presence to Austrian business contacts, who tend to value formality and established local relationships.
Routes to any device
Calls to your Austria number ring your team on mobile, desktop, or desk phone — wherever they work.
Free tools
Look up a number from Austria
Phone number checkerCheck the country and format of a number from Austria instantly.Phone number validatorValidate a number against its country's formatting rules (E.164).Carrier lookupCheck a number's country and format for free; live carrier data comes with the Lookup API.All country codesDialing codes, time zones and calling guides for every country.
Frequently Asked
Austria questions answered.
Answers about Austria's RTR-regulated carriers, formal business culture, and getting a local +43 virtual number.
Dial 011 (the US exit code), then 43, then the national number, leaving out the leading 0 used for domestic calls. Number length: Variable; geographic area codes are 1–4 digits followed by a subscriber number (7 digits in Vienna).
Start calling Austria, not tomorrow.
Get a virtual Austria number or make direct international calls to +43 — active in under ten minutes.