Area Code 77 – Mobile Network
The phone area code for Mobile Network is 77 (international format +4177). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 77
Select a central office code to view local carrier data and detailed information
Swiss Mobile Prefix +41 77: Technical Overview
The Swiss telephone numbering plan, governed by the Federal Office of Communications (OFCOM) and aligned with ITU-T E.164, designates the prefix 77 as a non-geographic mobile network code. Numbers beginning with +41 77 are exclusively allocated to mobile network operators (MNOs) and mobile virtual network operators (MVNOs) operating within Switzerland. Unlike geographic area codes (e.g., 44 for Zurich), the 77 prefix is not tied to any specific canton or city; it serves the entire country, including the Swiss diaspora and cross-border commuters.
Swiss mobile numbers, including those under the 77 prefix, consist of a total of nine digits following the country code. The full international format is +41 77 XXX XX XX (or +41 77 XXX XX XX), where the leading zero of the national significant number (0 77 XXX XX XX) is dropped when dialing from abroad. Domestically, callers must dial the trunk prefix 0 before the 77 code: 077 XXX XX XX. This applies to both voice calls and SMS/MMS messaging.
The 77 prefix is shared among several Swiss MNOs and MVNOs, including major carriers such as Swisscom, Salt, and Sunrise, as well as budget and digital-only providers like Coop Mobile, M-Budget Mobile, and Wingo. Because number portability is fully implemented in Switzerland, a subscriber may retain their 077 number even after switching operators. Consequently, the prefix does not indicate the current network provider; only a real-time lookup (e.g., via the central number portability database) can reveal the actual operator.
For international callers, dialing a Swiss mobile number requires the international access code (e.g., 00 from most European countries, or + from mobile devices), followed by 41, then 77 and the subscriber's eight-digit number. For example, a number written as 077 456 78 90 would be dialed as +41 77 456 78 90 from abroad. When sending SMS internationally, the same format is used.
From a regulatory perspective, the 77 prefix falls under the non-geographic category, meaning that calls to these numbers are not subject to location-based tariffs. However, call charges vary depending on the caller's own plan and the destination (domestic vs. international). In Switzerland, calls to mobile numbers are typically more expensive than calls to fixed lines, and many flat-rate plans include unlimited calls to all Swiss mobile networks. For businesses, using a 077 number is a common practice to ensure nationwide reach without the need for multiple geographic lines.
In summary, the +41 77 prefix is a vital component of Switzerland's mobile communications infrastructure, offering flexible, portable, and countrywide connectivity for both personal and business use.