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  2. Data codes for Switzerland - Wikipedia

    en.wikipedia.org/wiki/Data_codes_for_Switzerland

    These are codes for the country itself. See country code for a fuller explanation. CH ISO country code (ISO 3166-1 alpha-2, two letter) Internet Country code top-level domain (ccTLD) (see .ch) Distinguishing sign of vehicles in international traffic International Union of Railways alphabetical UIC Country Code WIPO ST.3 CHE ISO country code ...

  3. List of telephone country codes - Wikipedia

    en.wikipedia.org/.../List_of_telephone_country_codes

    Worldwide distribution of country calling codes. Regions are coloured by first digit. Telephone country codes, but also sometimes referred to as country dial-in codes, or historically international subscriber dialing (ISD) codes in the U.K., are telephone number dialing prefixes for reaching subscribers in foreign countries or areas via international telecommunication networks.

  4. List of ISO 3166 country codes - Wikipedia

    en.wikipedia.org/wiki/List_of_ISO_3166_country_codes

    ISO 3166-1 alpha-2 – two-letter country codes which are also used to create the ISO 3166-2 country subdivision codes and the Internet country code top-level domains. ISO 3166-1 alpha-3three-letter country codes which may allow a better visual association between the codes and the country names than the 3166-1 alpha-2 codes.

  5. 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.

  6. ISO 3166-1 alpha-3 - Wikipedia

    en.wikipedia.org/wiki/ISO_3166-1_alpha-3

    ISO 3166-1 alpha-3 codes are three-letter country codes defined in ISO 3166-1, part of the ISO 3166 standard published by the International Organization for Standardization (ISO), to represent countries, dependent territories, and special areas of geographical interest.

  7. Country code - Wikipedia

    en.wikipedia.org/wiki/Country_code

    ISO 3166-1 alpha-2: two-letter code; ISO 3166-1 alpha-3: three-letter code; ISO 3166-1 numeric: three-digit code; The two-letter codes are used as the basis for other codes and applications, for example, for ISO 4217 currency codes; with deviations, for country code top-level domain names (ccTLDs) on the Internet: list of Internet TLDs.

  8. 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 ...

  9. List of ITU letter codes - Wikipedia

    en.wikipedia.org/wiki/List_of_ITU_letter_codes

    Region 1 (RR 5.3) XR2 Region 2 (RR 5.4) XR3 Region 3 (RR 5.5) XRY Antarctic Region (RR AP 26/5.2) XSC ex SCG Serbia and Montenegro: XSD ex Republic of the Sudan before 14 July 2011 → SDN + SSD XSP Spratly Islands: XSU ex URS Soviet Union → RUS + … XUN United Nations: XWB West Bank: XWM World Meteorological Organization: XYU