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  1. AT&T - Wikipedia

    en.wikipedia.org › wiki › AT&T

    6 days ago · Website. www .att .com. AT&T Inc. is an American multinational conglomerate holding company that is Delaware-registered but headquartered at Whitacre Tower in Downtown Dallas, Texas. It is the world’s largest telecommunications company, and the second largest provider of mobile telephone services. As of 2020.

  2. List of mobile network operators of Europe - Wikipedia

    en.wikipedia.org › wiki › List_of_mobile_network

    5 days ago · 800/1800/2600 MHz LTE, LTE-A, VoLTE. 3500 MHz - 5G NR. 3.074 (3Q 2016) Golden Tree Asset Management L.P. (59,30%), Cyrus Capital Partners (35,60%) 20209 (Q-Telecom), 20210 (WIND) *The 3G frequency is in process to be shut down and it will be used for 4G services. It has already been converted in some parts of Athens.

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  4. List of mobile telephone prefixes by country - Wikipedia

    en.wikipedia.org › wiki › List_of_mobile_phone

    6 days ago · China Telecom: 1700–1702, 173, 17400–17405, 177 China Mobile: 172, 178 170, 171 for MVNOs. 174 for satellite phones. 179XX for VoIP prefixes, added before the number to call. (e.g. 17951-139-0000-0000) 18x China Unicom: 185-186 China Telecom: 180–181, 189 China Mobile: 182–184, 187, 188 19x: China Unicom: 196 China Telecom: 190, 191 ...

  5. Bluetooth - Wikipedia

    en.wikipedia.org › wiki › Bluetooth

    6 days ago · Bluetooth is a short-range wireless technology standard that is used for exchanging data between fixed and mobile devices over short distances using UHF radio waves in the ISM bands, from 2.402 GHz to 2.48 GHz, and building personal area networks (PANs). It was originally conceived as a wireless alternative to RS-232 data cables.

  6. Wi-Fi - Wikipedia

    en.wikipedia.org › wiki › Wi-Fi

    4 days ago · Wi-Fi ( / ˈwaɪfaɪ /) is a family of wireless network protocols, based on the IEEE 802.11 family of standards, which are commonly used for local area networking of devices and Internet access, allowing nearby digital devices to exchange data by radio waves. These are the most widely used computer networks in the world, used globally in home ...

    • 21 September 1998; 22 years ago
  7. Bharti Airtel - Wikipedia

    en.wikipedia.org › wiki › Bharti_Airtel

    6 days ago · Warid Telecom sold its remaining 30% share to Bharti Airtel's Singapore-based concern Bharti Airtel Holdings Pte Limited in March 2013. [35] On 16 November 2016, airtel Bangladesh was merged into Robi as a product brand of Robi, where Robi Axiata Limited is the licensee of airtel brand in Bangladesh. [36]

  8. Economy of Serbia - Wikipedia

    en.wikipedia.org › wiki › Economy_of_Serbia

    6 days ago · The economy of Serbia is a service-based upper middle income economy with the tertiary sector accounting for two-thirds of total gross domestic product (GDP) and functions on the principles of the free market. Nominal GDP in 2021 is projected to reach $60.43 billion, which is $8,748 per capita, while GDP based on purchasing power parity (PPP ...

  9. China Telecom Corporation Limited - Home

    www.chinatelecom-h.com › en › global

    Jul 23, 2021 · IR CONTACT. Ms. Lisa Lai / Mr. Nick Fung; ir@chinatelecom-h.com (852) 2582 0388; 28/F., Everbright Centre, 108 Gloucester Road, Wanchai, Hong Kong

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