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2. List of mobile network operators of the Caribbean - Wikipedia

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

   This is a list of cell phone providers in the Caribbean region. (As per their websites.) ... T-Mobile US •Includes Sprint: GSM, GPRS, EDGE, LTE, LTE-A, 5G NR

3. List of mobile network operators in the United States

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

   AT&T, T-Mobile, Verizon, Boost Mobile, and UScellular also sell SIM cards through their retail channels, both in-store and online. The top five wireless providers operate nationwide wireless networks which cover most of the population in the United States, while smaller carriers provide native network coverage across selected regions of the ...

4. Cellular frequencies in the United States - Wikipedia

   en.wikipedia.org/wiki/Cellular_frequencies_in...

   There are 51 MTAs, 493 BTAs and 175 EAs in the United States. The Advanced Wireless Services (AWS) bands, auctioned in the summer of 2006, were for 1,710–1,755 MHz, and 2,110–2,155 MHz. The spectrum was divided into blocks: A blocks were for Cellular Market Areas, based on existing cellular (1G) licenses, and were 2 × 10 MHz.

5. Cellular network - Wikipedia

   en.wikipedia.org/wiki/Cellular_network

   A cellular network or mobile network is a telecommunications network where the link to and from end nodes is wireless and the network is distributed over land areas called cells, each served by at least one fixed-location transceiver (such as a base station ). These base stations provide the cell with the network coverage which can be used for ...

6. Telecommunications in Haiti - Wikipedia

   en.wikipedia.org/wiki/Telecommunications_in_Haiti

   6.1 million mobile lines (102nd in the world) covering 61.6% of the population (2012). [8] There were two major cell phone providers: Comcel/Voila, Haitel until 2006 when Digicel, a Denis O'Brien company, begun servicing the Haitian network. Later, Natcom purchased 60% of Teleco (the main landline company in Haiti for about 4 decades) in 2011 ...

7. Comparison of mobile phone standards - Wikipedia

   en.wikipedia.org/wiki/Comparison_of_mobile_phone...

   GSM uses TDMA and FDMA for user and cell separation. UMTS, IS-95 and CDMA-2000 use CDMA. WiMAX and LTE use OFDM . Time-division multiple access (TDMA) provides multiuser access by chopping up the channel into sequential time slices. Each user of the channel takes turns to transmit and receive signals.