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  2. Telephone numbers in Switzerland - Wikipedia

    en.wikipedia.org/wiki/Telephone_numbers_in...

    The Swiss telephone numbering plan implements the ITU-T recommendation E.164 and is designated E.164/2002, based on its last major revision in 2002. It is a closed numbering plan, [1] which means that all telephone numbers, including the area code, have a fixed number of digits.

  3. Telecommunications in Switzerland - Wikipedia

    en.wikipedia.org/wiki/Telecommunications_in...

    In 2022, Switzerland experienced a 27% increase in telecommunications surveillance, mainly for serious crime investigations. This rise was driven by an increased number of mobile phone antenna searches. Real-time monitoring cases grew to 1,218, and retrospective monitoring reached 8,114 instances.

  4. List of country calling codes - Wikipedia

    en.wikipedia.org/wiki/List_of_country_calling_codes

    41 – Switzerland. 41 (91) – Campione d'Italia, an Italian enclave. 91 is actually the prefix for the Swiss canton Ticino in which the enclave resides. Its phone system is fully integrated into the Swiss system. 42 – formerly assigned to Czechoslovakia, later to its breakup successors (CZ, SK) until 1997; 420 – Czech Republic; 421 ...

  5. Swisscom - Wikipedia

    en.wikipedia.org/wiki/Swisscom

    One year later, the first intercity telephone line was established, linking Zürich's private exchange with Winterthur's public system. Telephone numbers were introduced in 1890, replacing the initial system whereby callers had been able to ask for their party by name. Switzerland began testing its first public phone booths in 1904. Initially ...

  6. Telephone numbers in Europe - Wikipedia

    en.wikipedia.org/wiki/Telephone_numbers_in_Europe

    Calling codes in Europe. Telephone numbers in Europe are managed by the national telecommunications authorities of each country. Most country codes start with 3 and 4, but some countries that by the Copenhagen criteria are considered part of Europe have country codes starting on numbers most common outside of Europe (e.g. Faroe Islands of Denmark have a code starting on number 2, which is most ...

  7. List of international call prefixes - Wikipedia

    en.wikipedia.org/wiki/List_of_international_call...

    Cambodia (001 – Telecom Cambodia, 007 – Royal Telecom International) Colombia (005, 007, 009) Indonesia (001, 007, 008) South Korea (see Telephone numbers in South Korea#International call carrier codes) Taiwan (see Telephone numbers in Taiwan#International dialling) Thailand (see Telephone numbers in Thailand#International dialling) 010 ...