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  2. History of telephone numbers in the United Kingdom - Wikipedia

    en.wikipedia.org/wiki/History_of_telephone...

    From the introduction of the telephone in the late 1870s, [5] to the early 1990s, telephone numbers in most of the United Kingdom were usually shown with a written exchange name followed by the subscriber number, e.g. 'Mallaig 10' or 'Aberdeen 43342'. This allowed calls to be placed initially through the operator and later by using local or ...

  3. List of dialling codes in the United Kingdom - Wikipedia

    en.wikipedia.org/wiki/List_of_dialling_codes_in...

    Unlike the Crown Dependencies of Jersey, Guernsey and the Isle of Man which use the UK area codes 01534, 01481 and 01624, respectively, telephone numbers in British Overseas Territories do not come under the UK telephone numbering plan. Some are within the North American Numbering Plan (NANP). These calls are treated as international calls.

  4. List of Google Easter eggs - Wikipedia

    en.wikipedia.org/wiki/List_of_Google_Easter_eggs

    "random number generator" or "rng" will generate a random number. The starting range is between 1 and 10, but the maximum and minimum can be adjusted. Changing the maximum or minimum to a number with more than 10 digits will generate a dizzy face emoji 😵. [47]

  5. List of mobile telephone prefixes by country - Wikipedia

    en.wikipedia.org/wiki/List_of_mobile_telephone...

    268 7xx. 10. NANP member. Argentina. +54. 9/15. 10. All carriers: Claro, Movistar, Personal, Tuenti. 15 before the local number but after long distance area code for national calls (0 11 15 xxxx-xxxx) and 9 placed after the international access code excluding the 15 for international calls (+54 9 11 xxxx-xxxx).

  6. List of cities in the United Kingdom - Wikipedia

    en.wikipedia.org/wiki/List_of_cities_in_the...

    Examples of cities in the United Kingdom; Liverpool, Edinburgh, Worcester; and London. This is a list of cities in the United Kingdom that are officially designated as such as of 12 November 2022. [1][2] It lists those places that have been granted city status by letters patent or royal charter. [3][4] There are currently 76 such cities in the ...

  7. International Bank Account Number - Wikipedia

    en.wikipedia.org/wiki/International_Bank_Account...

    The International Bank Account Number (IBAN) is an internationally agreed upon system of identifying bank accounts across national borders to facilitate the communication and processing of cross border transactions with a reduced risk of transcription errors. An IBAN uniquely identifies the account of a customer at a financial institution. [1]

  8. List of TCP and UDP port numbers - Wikipedia

    en.wikipedia.org/wiki/List_of_TCP_and_UDP_port...

    The port numbers in the range from 0 to 1023 (0 to 2 10 − 1) are the well-known ports or system ports. [3] They are used by system processes that provide widely used types of network services. On Unix-like operating systems, a process must execute with superuser privileges to be able to bind a network socket to an IP address using one of the ...

  9. Poisson distribution - Wikipedia

    en.wikipedia.org/wiki/Poisson_distribution

    Inverse transform sampling is simple and efficient for small values of λ, and requires only one uniform random number u per sample. Cumulative probabilities are examined in turn until one exceeds u. algorithm Poisson generator based upon the inversion by sequential search: [71]: 505 init: Let x ← 0, p ← e −λ, s ← p. Generate uniform ...