Area Code 2253 – Oberwaltersdorf

Geographic Overview

The Austrian area code +43 2253 is a geographic National Destination Code (NDC) assigned to the town of Oberwaltersdorf and its immediate surroundings in the district of Baden, in the state of Lower Austria (Niederösterreich). This region lies approximately 25 kilometers south of Vienna, within the Vienna metropolitan area's commuter belt. The code covers Oberwaltersdorf itself, along with the neighboring villages of Trumau and parts of the surrounding municipalities, including the communities of Traiskirchen and Günselsdorf in some allocations.

Administratively, Oberwaltersdorf is a market town (Marktgemeinde) with a population of around 4,500 residents. The area is known for its residential character, local businesses, and proximity to the Thermenregion (spa region) of Lower Austria. The code is used for fixed-line telephone services, including PSTN and VoIP lines, and is administered by the Austrian Regulatory Authority for Broadcasting and Telecommunications (RTR-GmbH).

Dialing Formats

When calling a number in Oberwaltersdorf, the subscriber number typically has a length of 6 to 7 digits, resulting in a total national significant number (NSN) length of 9 to 10 digits (including the leading '0' of the area code). The international format follows the ITU-T E.164 standard:

• National dialing (within Austria): 0 2253 XXXXXX (replace XXXXXX with the local subscriber number).
• International dialing (from abroad): +43 2253 XXXXXX (drop the leading '0' of the area code).

For example, a local number might be 02253 81234 when dialed domestically, and +43 2253 81234 when dialed from outside Austria.

Overlay and Numbering Considerations

As of the latest numbering plan updates, there is no overlay code for the 2253 area. Subscribers in this region are assigned numbers exclusively under the 2253 NDC. However, number portability allows users to retain their 2253 numbers when switching providers, even if they move to a different geographic area, though the number may then be considered non-geographic in practice.

Caller Instructions

For local callers within Austria, it is essential to include the trunk prefix '0' when dialing any number outside your local exchange area. For callers from abroad, always use the international prefix (e.g., '00' from most European countries, '011' from North America) followed by the Austrian country code '43' and then the area code without the leading '0'. Ensure you have the correct subscriber number, as Austrian numbers are not uniformly structured across all regions.

For businesses and residents in Oberwaltersdorf, the 2253 code is a key part of their local identity, and using the correct format ensures reliable connectivity for both domestic and international calls.