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  2. Mobile phone tracking - Wikipedia

    en.wikipedia.org/wiki/Mobile_phone_tracking

    An indoor location tracking map on a mobile phone. Mobile phone tracking is a process for identifying the location of a mobile phone, whether stationary or moving. . Localization may be affected by a number of technologies, such as the multilateration of radio signals between (several) cell towers of the network and the phone or by simply

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

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

    In the early 1980s, Bell Labs received a patent for what became AT&T's "Advanced 800 Service", a computer-controlled system where any toll-free number could point to any destination number, such as to a small business local number instead of a special InWATS line, and an itemized bill generated only for the calls the business actually received.

  4. Mobile identification number - Wikipedia

    en.wikipedia.org/wiki/Mobile_identification_number

    The MIN is a number that uniquely identifies a mobile phone working under TIA standards for cellular and PCS technologies (e.g. EIA/TIA–553 analog, IS–136 TDMA, IS–95 or IS-2000 CDMA). MIN usage became prevalent for mobile number portability to switch providers. It can also be called the MSID (Mobile Station ID) or IMSI_S (Short IMSI).

  5. Toll-free telephone number - Wikipedia

    en.wikipedia.org/wiki/Toll-free_telephone_number

    In Chile, the toll-free prefix is "800" followed by a six-digit number. These numbers are called número 800 (800 number). These numbers cannot be accessed from abroad. In Colombia, toll-free numbers start with "018000". In Croatia, the prefix for toll-free numbers is "0800". In the Czech Republic, the toll-free prefix is "800". [17]

  6. Stingray phone tracker - Wikipedia

    en.wikipedia.org/wiki/Stingray_phone_tracker

    However, many agencies do not disclose their use of StingRay technology, so these statistics are still potentially an under-representation of the actual number of agencies. According to the most recent information published by the American Civil Liberties Union, 72 law enforcement agencies in 24 states own StingRay technology in 2017.

  7. List of mobile network operators in the United States

    en.wikipedia.org/wiki/List_of_mobile_network...

    Four of the top five wireless providers have all standardized on 4G LTE and 5G NR as their wireless communication standards, whereas Boost Mobile uses only 5G NR.Of which, LTE has been deployed across their entire coverage area; however, the LTE bands used by each provider remain largely incompatible.

  8. Telephone numbers in Mexico - Wikipedia

    en.wikipedia.org/wiki/Telephone_numbers_in_Mexico

    02 + area code + phone number 10 09 International operator dialing 09 + country code + area code + phone number - 044 Local cell phone from a land line 044 + area code + phone number 10 - Cell phone from a cell phone area code + phone number 10 045 Domestic cell phone from a land line 045 + area code + phone number 10 -

  9. List of countries by number of mobile numbers in use

    en.wikipedia.org/wiki/List_of_countries_by...

    This list ranks the countries of the world by the number of mobile phone numbers in use. As an important caveat, this list does not provide the number of mobile phones in use. It is common for each SIM card has a separate phone number, so phones with multiple SIM cards will have multiple phone numbers.