libphonenumber API

Austria Phone Number Format

Country code +43 · ISO AT

How to format, dial, and validate Austria phone numbers, with live examples.

Country Code

+43

National Prefix

0

International Prefix

00

Mobile Portability

Yes

Try it now

Pre-filled with a valid fixed line number for Austria. Edit it and click "Try It" to see the parsed result.

Number Types & Example Formats

Each Austria phone-number type supported by libphonenumber, with a real example formatted three ways.

Type Length National International E.164
Fixed Line 4–13 digits 01 234567890 +43 1 234567890 +431234567890
Mobile 7–13 digits 0664 123456 +43 664 123456 +43664123456
Premium Rate 9–13 digits 0900 123456 +43 900 123456 +43900123456
Shared Cost 8–13 digits 0810 123456 +43 810 123456 +43810123456
Toll Free 9–13 digits 0800 123456 +43 800 123456 +43800123456
VoIP 5–13 digits 0780 123456 +43 780 123456 +43780123456

How to Dial Austria Numbers

From abroad

Dial +43 followed by the national number, dropping any leading 0.

Within Austria

Dial 0 before the local number to make a domestic call.

Dialing out of Austria

Dial 00 followed by the destination country code and number.

Area Codes

Browse Austria area codes with cities, timezones, and example numbers for each.

View Austria area codes →

Validate a Austria Number with the API

Send the number to the free libphonenumber API to get the parsed country, type, formatting, and validity.

Request
curl https://libphonenumberapi.com/api/phone-numbers/+431234567890

Frequently Asked Questions

What is the country code for Austria?

The international country code for Austria is +43. Use this prefix when dialing Austria numbers from another country.

How long is a Austria phone number?

Austria phone numbers are typically 4–13 digits, not including the +43 country code.

How do I dial a Austria phone number from abroad?

From abroad, dial +43 followed by the national number, dropping any leading 0. Within Austria, dial 0 before the local number.

How do I validate a Austria phone number programmatically?

Send a GET request to https://libphonenumberapi.com/api/phone-numbers/<number>. The free libphonenumber API returns the parsed country, format, type, and validity for any number — no API key required.