在準備擴大推動5G網路服務應用之際，美國電信業者AT&T宣布將開始淘汰3G網路服務，預計在2022年全面過渡至4G與5G網路服務。
In addition to AT&T, major telecom operators in the United States have also stated that they will phase out 3G network service systems in the next few years and will no longer sell new 3G network equipment, allowing the development of network technology in the United States to further grow.
However, considering that many people in the United States still use 3G network services, Verizon recently announced that it will postpone the elimination of 3G network services for one year, while AT&T will terminate its 2017G network services in 2. As for Sprint, which is currently merged into T-Mobile, it recently shut down its flagship WiMAX network.
The United States began rolling out 2002G network services in 3. After nearly 20 years of operation, it is entering a phase of replacement, expected to free up wireless spectrum for new network technologies, such as expanding the spectrum range for 5G networks or for the development of subsequent 6G networks. Taiwan's 3G network operating licenses expired at the end of 2018, and various telecom operators have ceased offering 3G network services and are migrating to existing 4G networks or the recently launched 5G network services.
