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2. BSNL - Wikipedia

   en.wikipedia.org/wiki/Bharat_Sanchar_Nigam_Limited

   [17] [18] The telecom minister said that BSNL will launch its 4G services all over India on the 75th Independence Day of India along with various other projects. [19] BSNL is using 700 MHz and 2100 MHz bands to roll out the 4G services which can be upgraded to 5G in the future. BSNL has installed more than 40,000 plus 4G enabled and 5G ready ...

3. BSNL Mobile - Wikipedia

   en.wikipedia.org/wiki/BSNL_Mobile

   Bharat Sanchar Nigam Limited (BSNL) was incorporated on 15 September 2000. It took over the business of providing telecom services and network management from the erstwhile Central Government Departments of Telecom Services (DTS) and Telecom Operations (DTO), with effect from 1 October 2000 on a going concern basis, in early days it was known as CellOne for GSM mobile services, Excel for ...

4. Telecommunications in India - Wikipedia

   en.wikipedia.org/wiki/Telecommunications_in_India

   Sixteen years later 4G services were launched in Kolkata in 2012. [62] With a subscriber base of more than 1151.8 million (31 Oct 2020), [2] the mobile telecommunications system in India is the second-largest in the world and it was thrown open to private players in the 1990s. GSM was comfortably maintaining its position as the dominant mobile ...

5. List of mobile network operators - Wikipedia

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

   Chad Bangladesh (28.18%) DR Congo (Airtel) Gabon (Airtel) Guernsey (Airtel-Vodafone) India Jersey (Airtel-Vodafone) Kenya (Airtel Kenya) Madagascar (Airtel)

6. SIM card - Wikipedia

   en.wikipedia.org/wiki/SIM_card

   A typical SIM card (mini-SIM with micro-SIM cutout) A SIM (Subscriber Identity Module) card is an integrated circuit (IC) intended to securely store an international mobile subscriber identity (IMSI) number and its related key, which are used to identify and authenticate subscribers on mobile telephone devices (such as mobile phones and laptops).

7. Mobile telephone numbering in India - Wikipedia

   en.wikipedia.org/wiki/Mobile_telephone_numbering...

   In India, mobile numbers (including pagers) on GSM, WCDMA, LTE and NR networks start with either 9, 8, 7 or 6.Each telecom circle is allowed to have multiple private operators; previously it was two private + BSNL/MTNL, subsequently it changed to three private + BSNL/MTNL in GSM; however currently each telecom circle has all four operators including Reliance Jio, Bharti Airtel, Vodafone idea ...