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The iPhone 5 is a smartphone that was developed and marketed by Apple Inc. ... Verizon Wireless, ... there is no difference between GSM and CDMA A1429 model. CDMA ...
As a more recent example the Apple iPhone 5 and iPhone 4S support quad-band GSM at 850/900/1800/1900 MHz, quad-band UMTS/HSDPA/HSUPA at 850/900/1900/2100 MHz, and dual-band CDMA EV-DO Rev. An at 800/1900 MHz, for a total of 'six' different frequencies (though at most four in a single mode).
In 3G, the most prevalent technology was UMTS with CDMA-2000 in close contention. All radio access technologies have to solve the same problems: to divide the finite RF spectrum among multiple users as efficiently as possible. GSM uses TDMA and FDMA for user and cell separation. UMTS, IS-95 and CDMA-2000 use CDMA. WiMAX and LTE use OFDM.
Mobile virtual network operators (MVNOs) in the United States lease wireless telephone and data service from the four major cellular carriers in the country—AT&T Mobility, Boost Mobile, T-Mobile US, and Verizon—and offer various levels of free and/or paid talk, text and data services to their customers.
In Russia and some other countries, local carriers received licenses for 450 MHz frequency to provide CDMA mobile coverage area. Many GSM phones support three bands (900/1,800/1,900 MHz or 850/1,800/1,900 MHz) or four bands (850/900/1,800/1,900 MHz), and are usually referred to as tri-band and quad-band phones, or world phones; with such a ...
D, E, and F blocks covered huge areas of the country, typically several states at a time, and covered 2 × 5 MHz for D and E blocks, 2 × 10 MHz for F. [5] The 700 MHz band was auctioned in early 2008 using spectrum previously used by television stations' analog broadcasts, with Verizon Wireless and AT&T Mobility winning the majority of ...
Cricket Wireless noted on its old website that CDMA service would be terminated as early as September 2015. Most devices prior to the merger would not be compatible on the GSM network except the iPhone 4s, iPhone 5, iPhone 5c, and iPhone 5s. Compatible iPhone devices would only require a new SIM card.
Verizon is the largest wireless carrier in the United States, with 146 million subscribers as of December 31, 2024. [4] It currently has the second-largest network in the United States with their LTE network covering 2.68M Sq. Miles of the United States. [5] The company is headquartered in Basking Ridge, New Jersey.