Which countries use 2G?

Past 2G networks CountryNetworkStandardTaiwanTaiwan MobileGSMUnited States Puerto Rico US Virgin IslandsAT&TGSMT-MobileGSMT-Mobile (Sprint)cdmaOne2G – Wikipedia en.wikipedia.org › wiki

Table 1 2G, 3G, 4G Frequency Bands in the USS.NCellular Technology in USFrequency bands in US1GSM850 MHz, 1900 MHz2CDMA (2G, 3G)800 MHz, 1900 MHz3WCDMA (3G)850 MHz, 1900 MHz, 2100 MHzWhat frequency spectrum will 5G technology use and how does www.arrow.com › research-and-events › articles › what-frequency-spectru…

GSM 850 is simply GSM technology operating in the Cellular (850 MHz or “800”) frequency band . Both the technology and frequency band have been around for many years, but not until 2002 were they combined. In the U.S. prior to 2002, GSM technology only operated in the PCS (1900 MHz) frequency band.