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2. History of mobile phones - Wikipedia

   en.wikipedia.org/wiki/History_of_mobile_phones

   The rise in mobile phone usage as a result of 2G was explosive and this era also saw the advent of prepaid mobile phones. In 1991, the first GSM network ( Radiolinja ) launched in Finland . In general, the frequencies used by 2G systems in Europe were higher than those in the United States, though with some overlap.

3. SIM card - Wikipedia

   en.wikipedia.org/wiki/SIM_card

   A typical SIM card (mini-SIM with micro-SIM cutout) T-Mobile nano-SIM card with NFC capabilities in the SIM tray of an iPhone 6s cell phone 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 ...

4. Mobile network codes in ITU region 3xx (North America)

   en.wikipedia.org/wiki/Mobile_network_codes_in...

   This list contains the mobile country codes and mobile network codes for networks with country codes between 300 and 399, inclusively – a region that covers North America and the Caribbean.

5. Freedom Mobile - Wikipedia

   en.wikipedia.org/wiki/Freedom_Mobile

   In addition to mobile phone plans, Freedom also offers home internet and TV services. [ 1 ] Founded in 2008 as Wind Mobile by the telecommunications company Globalive , Freedom Mobile emerged as one of several new mobile carriers launched in Canada that year under a government initiative to foster competition in the wireless sector.

6. Rogers Wireless - Wikipedia

   en.wikipedia.org/wiki/Rogers_Wireless

   Rogers Wireless logo prior to 2015 redesign. Rogers Wireless was founded by Ted Rogers, David Margolese, Marc Belzberg and Philippe de Gaspé Beaubien. [1]In 1978, future Sirius XM Radio founder David Margolese dropped out of university and founded the paging company Canadian Telecom. [7]

7. Merger of Sprint Corporation and T-Mobile US - Wikipedia

   en.wikipedia.org/wiki/Merger_of_Sprint...

   Sprint Corporation and T-Mobile US merged in 2020 in an all shares deal for $26 billion. The deal was announced on April 29, 2018. [1] [2] [3] After a two-year-long approval process the merger was closed on April 1, 2020, [4] [5] [6] with T-Mobile emerging as the surviving brand.