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2. Mobile phone tracking - Wikipedia

   en.wikipedia.org/wiki/Mobile_phone_tracking

   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 using GNSS. To locate a mobile phone using multilateration ...

3. NHS Test and Trace - Wikipedia

   en.wikipedia.org/wiki/NHS_Test_and_Trace

   NHS Test and Trace. NHS Test and Trace is a government-funded service in England, established in 2020 to track and help prevent the spread of COVID-19. The programme is part of the UK Health Security Agency; the service and the agency are headed by Jenny Harries . The service is the responsibility of the Secretary of State for Health and Social ...

4. Telephone numbers in the United Kingdom - Wikipedia

   en.wikipedia.org/wiki/Telephone_numbers_in_the...

   Corporate numbering and VoIP services; freephone services (0500) until June 2017. 06. Not in use. 07. Mobile telephony (071xx–075xx and 077xx–079xx), personal numbering (070xx), non-UK mobile networks (07624) and pagers (076xx) 08. Freephone services (080x), special-rate services (084x and 087x) 09.

5. 999 (emergency telephone number) - Wikipedia

   en.wikipedia.org/wiki/999_(emergency_telephone...

   999 is the official emergency number for the United Kingdom, but calls are also accepted on the European Union emergency number, 112. All calls are answered by 999 operators, and are always free. [2] Approximately 35 million 999/112 calls are made in the UK each year, with 74% from mobiles and 26% from landlines in 2022.

6. Non-geographic telephone numbers in the United Kingdom

   en.wikipedia.org/wiki/Non-geographic_telephone...

   According to Ofcom, [72] UK consumers paid around £1.9 billion for calls to non-geographic numbers in 2009. Clients are attracted to 084 and 087 numbers because per minute revenue is generated for them from each call, and call queuing is permitted. Call centres may generate very high revenue from high call volumes.

7. International Mobile Equipment Identity - Wikipedia

   en.wikipedia.org/wiki/International_Mobile...

   IMEI number - an example. The International Mobile Equipment Identity ( IMEI) [1] is a numeric identifier, usually unique, [2] [3] for 3GPP and iDEN mobile phones, as well as some satellite phones. It is usually found printed inside the battery compartment of the phone but can also be displayed on-screen on most phones by entering the MMI ...