Area Code 5577 – Lustenau

Geographic Overview

The Austrian area code +43 5577 is assigned to the westernmost federal state of Vorarlberg, specifically serving the market town of Lustenau and its immediate surroundings. Lustenau lies on the banks of the Rhine River, bordering Switzerland and Germany, and is one of Austria's most economically vibrant municipalities. The code is part of the Vorarlberg numbering plan, which is administered by the Austrian Regulatory Authority for Broadcasting and Telecommunications (RTR-GmbH) in accordance with ITU-T E.164 recommendations.

Dialing Formats

For domestic callers within Austria, the trunk prefix 0 is used before the area code. To reach a Lustenau subscriber, dial:

• 0 5577 [subscriber number] (e.g., 0 5577 12345)

International callers must replace the trunk prefix with Austria's country code +43, omitting the leading zero:

• +43 5577 [subscriber number] (e.g., +43 5577 12345)

Subscriber numbers in Lustenau typically consist of 5 to 7 digits, depending on the service provider and the age of the allocation. The total length of a national significant number (NSN) in Austria is usually 9 to 11 digits, including the area code.

Geographic Coverage and Administration

The 5577 numbering area covers the political district of Dornbirn, with Lustenau as the primary locality. It also includes the neighboring villages of Höchst and Fußach, which share the same local exchange. The area is part of the larger Vorarlberg region, known for its textile industry and proximity to Lake Constance (Bodensee).

As a geographic number, 5577 is tied to a physical line or fixed location. However, with the advent of Voice over IP (VoIP) and number portability, subscribers may retain their 5577 number even if they move within Austria, provided the service provider supports relocation. This flexibility is regulated by the RTR to ensure fair competition among telecom operators.

Caller Instructions

For local callers within the 5577 area, dialing the subscriber number alone may suffice for short-distance calls, depending on the operator's network configuration. However, it is always safe to use the full national format (0 5577) to avoid misdialing. For callers from other Austrian regions, the national format is mandatory. International callers should always use the +43 5577 format, ensuring they replace the international access code (00 or +) with the appropriate prefix for their country.

Emergency services (112) and other short codes remain accessible regardless of the area code. For any billing or technical inquiries, contact your service provider.