3G (third-generation)
networks, launched in 2001, introduced mobile internet, video calling, and
faster data (up to 2-7.2 Mbps) using UMTS or CDMA2000 technology. While
foundational for smartphones, most carriers are currently shutting down or
"sunsetting" 3G to repurpose spectrum for 4G/5G, with major shutdowns
completed by 2024–2026.
Offered speeds significantly higher than 2G, allowing for web browsing, data, and multimedia, though much slower than modern 4G LTE, which can be 10 times faster.
Primarily based on
Universal Mobile Telecommunications System (UMTS) and CDMA2000
Supported early
smartphone features, including GPS, mobile TV, and video conferencing.
Many operators
are phasing out 3G, with major shutdowns in the US and Europe largely completed
between 2022 and 2024,, with some operators continuing through 2026.
While 3G coverage
still exists in some regions, it is rapidly being replaced by 4G and 5G.
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