Area Code 7663 – Steinbach am Attersee

Geographic Overview of Area Code 7663

Austrian area code 7663 is a geographic National Destination Code (NDC) assigned to the municipality of Steinbach am Attersee, located in the federal state of Upper Austria (Oberösterreich). This code serves the communities along the northern shore of the Attersee, including the villages of Steinbach, Unterach, and parts of the surrounding lake district. The region is known for its scenic lakeside setting and is part of the Salzkammergut area, a popular tourist destination.

Dialing Formats

When calling a landline in Steinbach am Attersee, the local number consists of the area code (without the leading trunk prefix) followed by a subscriber number of typically 5 to 7 digits. The complete national (domestic) format is:

• 0 7663 XXXXXX (when dialing from within Austria)

For international callers, the Austrian country code (+43) replaces the leading zero. Thus, the international format is:

• +43 7663 XXXXXX (when dialing from abroad)

For example, a local number might be 7663 12345. To call this number from Vienna, you would dial 0 7663 12345. From Germany, you would dial 00 43 7663 12345 (or use the + symbol).

Caller Instructions

Local callers: If you are within the 7663 area, you can often dial the subscriber number directly without the area code, depending on your telephone provider's configuration. However, for clarity and to avoid misdialing, it is recommended to always use the full national format.

International callers: Always use the international access prefix of your country (e.g., 00 from most European countries, 011 from the US/Canada) followed by Austria's country code 43, then the area code without the leading zero, and the subscriber number.

Regulatory and Technical Notes

Area code 7663 is administered by the Austrian Regulatory Authority for Broadcasting and Telecommunications (RTR). Subscriber numbers within this code are assigned to fixed-line operators, including A1 Telekom Austria, Magenta Telekom, and various alternative carriers. As of recent years, number portability allows subscribers to retain their 7663 numbers even if they switch providers. However, geographic numbers are generally tied to the physical location of the line, and using them for nomadic VoIP services may be restricted by the operator.

There are no overlay codes currently planned for the 7663 area, meaning the code is unique to this geographic region. The maximum length of a complete national number (including the trunk prefix) is 12 digits, following the ITU-T E.164 recommendation for Austria.