---
title: "Austria (+43) Country Calling Code & SMS Numbering Plan"
---

Austria (+43) Country Calling Code & SMS Numbering Plan: SMSRiver

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- Austria (+43)

National Telecom Specification

# Austria (+43) Country Calling Code & SMS Guide

Complete engineering reference for phone numbering formats, domestic trunk prefixes, cellular mobile operator allocations, and regulatory A2P SMS requirements in Austria.

Quick Jump:
[Numbering Plan](#numbering-plan)
[A2P Regulations](#sms-regulations)
[Verify AT Number](#inspector-cta)

Country Dialing Code
+43
ISO: AT

Domestic Trunk Prefix
0
Omitted internationally

National Length
10-13 digits
Local subscriber digits

Full E.164 Length
12-14 digits (+43 6xx xxx xxxx)
With +43 prefix

## Telephony Architecture & Carrier Allocations

Destination Codes:
Geographic 01 (Vienna) / 03-07, Mobile 0650-0699

Mobile Prefix Patterns:
0650, 0660, 0664, 0676, 0677, 0680, 0699 allocated by RTR

Major Mobile Network Operators:
A1 Telekom Austria, Magenta Telekom, Drei (Hutchison Drei Austria)

## A2P Messaging Regulations & Firewall Policies

A2P 10DLC & Campaign Registration
Not applicable. Supervised by Rundfunk und Telekom Regulierungs-GmbH (RTR).

Alphanumeric Sender ID Support
Supported up to 11 characters. Carrier registration recommended for high-volume banking traffic.

Two-Way Messaging Capability
Supported using Austrian 06xx mobile lines.

Character Encoding Standards
GSM-7 standard (German umlauts ä, ö, ü, ß supported).

Compliance Framework: Austrian Telecommunications Act (TKG 2021) Section 174 and EU GDPR; opt-in consent mandatory.

Interactive Number Intelligence

### Test a Austria Number Now

Check if a Austria phone number conforms to the national numbering plan, classify mobile vs VoIP allocation, and obtain canonical E.164 standardization.

Inspect Number →

## Frequently Asked Questions for Austria

### What is the international calling code for Austria?

The country code for Austria is +43. Domestic mobile prefixes start with 06xx, appearing as +436xx in E.164.

### Related National Calling Codes

[Australia
+61](/country-codes/australia/)

[Belgium
+32](/country-codes/belgium/)

[Brazil
+55](/country-codes/brazil/)

[Canada
+1](/country-codes/canada/)

[France
+33](/country-codes/france/)

[Germany
+49](/country-codes/germany/)

[India
+91](/country-codes/india/)

[Indonesia
+62](/country-codes/indonesia/)

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