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  2. Free list - Wikipedia

    en.wikipedia.org/wiki/Free_list

    This diagram represents five contiguous memory regions which each hold a pointer and a data block. The List Head points to the 2nd element, which points to the 5th, which points to the 3rd, thereby forming a linked list of available memory regions. A free list (or freelist) is a data structure used in a scheme for dynamic memory allocation.

  3. System area code - Wikipedia

    en.wikipedia.org/wiki/System_Area_Code

    In air traffic control, the system area code (SAC) is part of a unique identifier assigned to each system which uses the ASTERIX format. The Eurocontrol SuRveillance Data Exchange Task Force (RDE-TF) maintains these identifiers internationally and assigns them to regions such as countries, though sometimes more than one code is assigned within the same country, for example to distinguish ...

  4. Toll-free telephone numbers in the North American Numbering ...

    en.wikipedia.org/wiki/Toll-free_telephone...

    Toll-free telephone numbers in the North American Numbering Plan have the area code prefix 800, 833, 844, 855, 866, 877, and 888. Additionally, area codes 822, 880 through 887, and 889 are reserved for toll-free use in the future. 811 is excluded because it is a special dialing code in the group NXX for various other purposes.

  5. TDS Telecom - Wikipedia

    en.wikipedia.org/wiki/TDS_Telecom

    TDS Telecom is an American telecommunications company with headquarters in Madison, Wisconsin.It is a wholly owned subsidiary of Telephone and Data Systems Inc, and is the seventh-largest local exchange carrier in the U.S. [1] TDS Telecom offers telephone, broadband Internet and television services to customers in 30 states and more than 900 rural and suburban communities, though it also ...

  6. List of transponder codes - Wikipedia

    en.wikipedia.org/wiki/List_of_Transponder_Codes

    External ARTCC subsets. (Blocks of discrete codes except that xx00 is used as a non-discrete code after all discrete codes are assigned.) [3] 7000 ICAO: VFR standard squawk code when no other code has been assigned. [1] EASA countries: Code that pilot shall set when not receiving air traffic services, unless otherwise prescribed by the ...

  7. Download QR code; Print/export Download as PDF; Printable version; In other projects ... t.d.s., tds, TDS take by mouth 3 times a day ter die sumendus u.d., ud

  8. List of California area codes - Wikipedia

    en.wikipedia.org/wiki/List_of_California_area_codes

    October 1947; split numerous times since then, including a split to form code 323 on June 13, 1998; in August 2017, the boundary between 213 and 323 was erased to form an overlay. 279: Sacramento and most of the Sacramento metro: Folsom, Roseville; Sacramento County and southern Placer County: overlay with 916, started service on March 10, 2018 ...

  9. List of airports by IATA airport code: S - Wikipedia

    en.wikipedia.org/wiki/List_of_airports_by_IATA...

    "United Nations Code for Trade and Transport Locations". UN/LOCODE 2011-2. UNECE. 28 February 2012. – includes IATA codes "ICAO Location Indicators by State" (PDF). International Civil Aviation Organization. 17 September 2010. Archived from the original (PDF) on 25 March 2019; Aviation Safety Network – IATA and ICAO airport codes