Area Code 660 – Mobile Network
The phone area code for Mobile Network is 660 (international format +43660). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 660
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Overview of Austria's +43 660 Mobile Prefix
The +43 660 prefix is a non-geographic mobile network code assigned within Austria's national numbering plan, as governed by the national regulatory authority (RTR-GmbH). Unlike geographic area codes, which correspond to specific cities or regions, the 660 prefix is location-independent and used exclusively for mobile telecommunications services. This means that a number beginning with +43 660 can belong to a subscriber anywhere in Austria, and the number does not indicate the caller's or callee's physical location.
Technical Specifications and Numbering
Austrian mobile numbers, including those under the 660 prefix, follow the international E.164 format: +43 followed by the national significant number (NSN). For 660 numbers, the NSN consists of the prefix '660' plus a subscriber number, resulting in a total length of 10 digits after the country code (i.e., +43 660 XXXXXXX). When dialing domestically, the leading '0' is used (0 660 XXXXXXX), which is the trunk prefix. Internationally, callers must drop the leading '0' and use the +43 country code.
The 660 prefix is allocated to mobile network operators (MNOs) and mobile virtual network operators (MVNOs) that provide services under this code. It is important to note that number portability is in effect in Austria, meaning that a subscriber may retain their 660 number even if they switch to a different mobile operator. Consequently, the prefix does not guarantee a specific carrier, and routing is determined by the current network operator.
Dialing Instructions
- Domestic calls (within Austria): Dial the full national number: 0 660 XXXXXXX.
- International calls to Austria: Dial your country's international access code (e.g., 00 from most European countries, 011 from the US/Canada), then 43 660 XXXXXXX (omit the leading '0').
- International calls from Austria: Dial the international prefix (00) followed by the destination country code and number.
- SMS and MMS: Use the same international format as voice calls for sending messages from abroad.
Usage and Considerations
Numbers under the 660 prefix are used for standard mobile voice calls, SMS, MMS, and mobile data services. They are also commonly used for two-factor authentication (2FA) and account verification due to their portability and widespread use. When contacting Austrian mobile numbers from abroad, be aware that charges may apply depending on your own mobile plan and the policies of the Austrian operator. For businesses, using 660 numbers can be advantageous as they are recognized as mobile numbers, enabling SMS-based marketing and customer communication, subject to local regulations.