[Slashdot] - AT&T's 5G Network Goes Nationwide With No Extra Cost on Unlimited Plans

Having launched preliminary 5G services using millimeter wave hardware in late 2018, AT&T has technically been operating a 5G network for a year and a half -- but between the "5G+" network's few connection points and extremely limited hardware support, most people in the U.S. couldn't actually use it. Today, AT&T says its low band 5G network is officially available nationwide, reaching a potential 205 million customers across 395 coverage markets. From a report: The carrier is also making 5G service available to a wider range of customers at no additional charge. On a positive note, AT&T is now the second U.S. carrier with a nationwide 5G network, joining T-Mobile, which launched a similarly large offering in December 2019 using long distance but slow low band towers. But T-Mobile's low band 5G peaks at speeds around 225Mbps, nowhere near the 2Gbps peaks seen in Verizon's all but unusably small 5G network, while promising only a 20% improvement over 4G speeds on average. AT&T's low band 5G network is expected to deliver comparable performance but is using a technology called DSS to dynamically split prior 4G spectrum between 4G and 5G phones as user demand fluctuates.

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