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 A2P Regulations Verify AT Number

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.

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 Belgium +32 Brazil +55 Canada +1 France +33 Germany +49 India +91 Indonesia +62