Area Code 78 – Mobile Network
The phone area code for Mobile Network is 78 (international format +4178). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 78
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Overview of Swiss Mobile Prefix 78
The Swiss prefix 78 is a non-geographic mobile network code within the Swiss telephone numbering plan, as defined under ITU-T E.164. It is used exclusively for mobile services and is not tied to any specific geographic region. Numbers beginning with +41 78 are assigned to mobile network operators (MNOs) and mobile virtual network operators (MVNOs) operating in Switzerland. The prefix 78 is part of the Swiss Federal Office of Communications (OFCOM) numbering plan and is used for both voice and SMS services.
Numbering Format and Dialing
Swiss mobile numbers using the 78 prefix have a total length of 9 digits after the country code. The national significant number (NSN) consists of the prefix 78 followed by a 7-digit subscriber number. The international format is +41 78 XXX XX XX, while the national format is 078 XXX XX XX. When dialing from abroad, callers must use the international format, omitting the leading zero. For example, a Swiss mobile number might be +41 78 123 45 67. When calling from within Switzerland, the leading '0' is required: 078 123 45 67.
Mobile Network Operators and Portability
The 78 prefix is shared among multiple mobile operators, including Swisscom, Salt, Sunrise, and various MVNOs. Due to mobile number portability (MNP), a subscriber may retain their 78 number even if they switch operators. Therefore, the prefix does not indicate a specific operator. This is important for routing and billing purposes, as calls to 78 numbers are always treated as mobile calls, regardless of the underlying network.
Usage and Cost Considerations
Numbers with the 78 prefix are used for personal and business mobile services, including voice, SMS, and mobile data. Calls to 78 numbers from landlines or other mobile networks are typically charged at mobile rates, which may be higher than calls to geographic numbers. For callers outside Switzerland, international rates apply. It is advisable to check with your service provider for specific charges. For businesses, using 78 numbers can be beneficial for maintaining a mobile presence, but they are not suitable for toll-free services.
Regulatory and Technical Aspects
The allocation and management of the 78 prefix are overseen by OFCOM, which ensures efficient use of numbering resources. The prefix is part of the Swiss national numbering plan and is subject to regulatory guidelines. From a technical perspective, 78 numbers are routed through the Swiss mobile network infrastructure, supporting both circuit-switched and packet-switched (VoLTE, VoWiFi) communications. For international interoperability, the +41 country code and the 78 prefix are recognized globally, enabling seamless roaming and international connectivity.