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  2. North American Numbering Plan - Wikipedia

    en.wikipedia.org/wiki/North_American_Numbering_Plan

    The North American Numbering Plan (NANP) is a telephone numbering plan for twenty-five regions in twenty countries, primarily in North America and the Caribbean.This group is historically known as World Zone 1 and has the telephone country code 1.

  3. Coordination number - Wikipedia

    en.wikipedia.org/wiki/Coordination_number

    In chemistry, crystallography, and materials science, the coordination number, also called ligancy, of a central atom in a molecule or crystal is the number of atoms, molecules or ions bonded to it. The ion/molecule/atom surrounding the central ion/molecule/atom is called a ligand .

  4. Voice phishing - Wikipedia

    en.wikipedia.org/wiki/Voice_phishing

    On March 28, 2021, the Federal Communications Commission issued a statement warning Americans of the rising number of phone scams regarding fraudulent COVID-19 products. Voice phishing schemes attempting to sell products which putatively "prevent, treat, mitigate, diagnose or cure" COVID-19 have been monitored by the Food and Drug ...

  5. Telephone number pooling - Wikipedia

    en.wikipedia.org/wiki/Telephone_number_pooling

    Public resistance to the introduction of new area codes, whether as overlay complexes (which allowed customers to keep their existing numbers, but broke seven-digit local calling) or by area code splits (where the area code of existing numbers was changed), prompted the FCC and state commissions to introduce thousands-block number pooling, i.e. the allocation of number space in blocks of only ...

  6. Net neutrality in the United States - Wikipedia

    en.wikipedia.org/wiki/Net_neutrality_in_the...

    The ideas underlying net neutrality have a long pedigree in telecommunications practice and regulation. Services such as telegrams and the phone network (officially, the public switched telephone network or PSTN) have been considered common carriers under U.S. law since the Mann–Elkins Act of 1910, which means that they have been akin to public utilities and expressly forbidden to give ...

  7. 555 (telephone number) - Wikipedia

    en.wikipedia.org/wiki/555_(telephone_number)

    The 555 exchange is not reserved in area codes used for toll-free phone numbers. This led to the video game The Last of Us accidentally including the number to a phone-sex operator. The number "555-2368" (or 311-555-2368) is a carryover from the "EXchange 2368" ("Exchange CENTral") number common in telephone advertisements as early as the 1940s.

  8. FCC mark - Wikipedia

    en.wikipedia.org/wiki/FCC_mark

    The FCC logo or the FCC mark is a voluntary mark employed on electronic products manufactured or sold in the United States which indicates that the electromagnetic radiation from the device is below the limits specified by the Federal Communications Commission and the manufacturer has followed the requirements of the Supplier's Declaration of Conformity authorization procedures.

  9. FCC v. Fox Television Stations, Inc. (2012) - Wikipedia

    en.wikipedia.org/wiki/FCC_v._Fox_Television...

    Federal Communications Commission v. Fox Television Stations, Inc., 567 U.S. 239 (2012), was a decision by the Supreme Court of the United States regarding whether the U.S. Federal Communications Commission's scheme for regulating speech is unconstitutionally vague.