Area Code 3684 – St. Martin am Grimming

Geographic Overview

The area code +43 3684 is a geographic destination code assigned to the telecommunications network serving St. Martin am Grimming and its immediate surroundings in the federal state of Styria (Steiermark), Austria. This code falls within the Austrian numbering plan administered by the national regulatory authority (RTR-GmbH) under the ITU-T E.164 framework. St. Martin am Grimming is a small municipality located in the Ennstal valley, near the Grimming mountain, and is part of the Liezen district. The geographic area covered by this code includes the village itself and several nearby hamlets, such as Fisching and Neuhaus.

Dialing Formats

For callers within Austria, the national trunk prefix 0 is used before the area code, resulting in the format 0 3684 followed by the local subscriber number. The local subscriber numbers in this area typically consist of 4 to 6 digits, making the total national significant number (NSN) length between 9 and 11 digits when including the leading '0'. For international callers, the country calling code +43 replaces the trunk prefix, and the area code is dialed without the leading zero. The international format is +43 3684 followed by the subscriber number.

Example (local call within Austria): 0 3684 1234
Example (international call): +43 3684 1234

Caller Instructions

• Local callers (within Austria) must always dial the trunk prefix '0' before the area code when calling from a different geographic region. Within the same local area, it may be possible to dial only the subscriber number, but this depends on the specific local dialing plan; for consistency, using the full national format is recommended.
• International callers should dial the international access prefix of their country (e.g., 00 in most European countries, 011 in the US/Canada), followed by Austria's country code 43, then the area code 3684 (without the leading zero), and finally the subscriber number.
• Mobile callers within Austria can dial the number in the same way as fixed-line callers, using the national trunk prefix.

Numbering and Overlay Considerations

As of the current numbering plan, there is no overlay code for this area; +43 3684 is the sole geographic code for St. Martin am Grimming. Subscriber numbers are not portable to other geographic areas, but number portability is available for fixed-line services within Austria, allowing users to retain their number when changing providers. However, the geographic significance of the code remains tied to the location.

For businesses and residents in St. Martin am Grimming, having a local geographic number enhances local presence and trust. When dialing from abroad, always ensure the correct international prefix is used to avoid routing errors.