Region Langenthal Oberaargau 064 – Aarau withdrawn and integrated into 062 Region Aarau, Fricktal 065 – Solothurn, since 9 November 1996 integrated into 032 066 – Delémont, since 9 November 1996 integrated into 032 067 – Short prefix for German/French regions surrounding Basel and Alsace/South-Baden 068 – Short prefix for some German/French surrounding Basel and Alsace/South-Baden 069 – Short prefix for some German/French surrounding Basel and Alsace/South-Baden 071 – St. Gallen, 30 March 1996 072 – Weinfelden, withdrawn and integrated into 071 Region Weinfelden (Thurgau) since 30 March 1996 073 – Wil, withdrawn and integrated into 071 Region Wil since 30 March 1996 074 – Wattwil, withdrawn and integrated into 071 Region Wattwil (Toggenburg) since 30 March 1996 074 – Pager 075 – Mobile phone "Natel D" (Swisscom) / previously used for Liechtenstein (Telephone numbers in Liechtenstein) which used to be within the Swiss telephone numbering plan. 076 – Mobile phone Sunrise 077 – Mobile phone "Natel C" 078 – Mobile phone Salt (Orange (telecommunications)) 079 – Mobile phone "Natel D" (Swisscom) 092 – Bellinzona, Misox and Calanca Valley (GR), withdrawn and integrated into 091 (Ticino) 093 – Locarno, withdrawn and integrated into 091 (Ticino) 094 – Leventina Valley, withdrawn and integrated into 091 (Ticino) Liechtenstein previously used the Swiss telephone numbering plan with the area code 075. (This was dialled as +41 75 from outside Switzerland and Liechtenstein). However, on 5 April 1999, it adopted its own international code +423. Consequently, calls from Switzerland now require international dialling, using the 00423 prefix and the seven-digit number. Campione d'Italia The Italian municipality of Campione d'Italia, an exclave within the Swiss canton of Ticino, uses the Swiss telephone network and is part of the Swiss numbering plan, although some Italian numbers are in use by the municipal council, which use the same +39 031 numbering range as the town of Como. Büsingen am Hochrhein The German municipality of Büsingen am Hochrhein, an enclave within the canton of Schaffhausen, uses the Swiss telecom network, with numbers having the prefix 052, alongside that of Germany, from which numbers must be dialled in the international format as 004152. References Switzerland Telecommunications in Switzerland Telephone numbers