Drew FitzGerald

T-Mobile said it has vaulted ahead of rival AT&T in the race for wireless customers to become the country’s second-largest cellphone carrier. T-Mobile ended June with 98.3 million US customers, excluding wholesale subscribers on other brands that use its network. AT&T reported 92.9 million prepaid and postpaid customers, a tally that didn’t count wholesale accounts or connected devices such as Wi-Fi hotspots and car sensors.

Trump administration officials have talked about inserting the federal government deep into the private sector to stiffen global competition against Chinese telecom giant Huawei. The ideas -- discussed intermittently with US tech giants, private-equity firms, and veteran telecom executives -- include prodding large US technology companies like Cisco to acquire European companies Ericsson or Nokia.

Facebook’s investment in an enormous underwater internet cable circling Africa will move forward with help from partners in China, Saudi Arabia and Europe. The 2Africa internet project, called Simba in its planning phase, would link 16 African countries with cable routes to Europe and the Arabian Peninsula. The 2Africa system would involve a massive investment even by Silicon Valley standards.

An influential Senate panel is calling for stricter oversight of Chinese telecommunications companies operating in the US after an investigation found years of weak supervision by regulators threatens national security. In a forthcoming report, the Senate Permanent Subcommittee on Investigations will level sharp criticism at a group of telecom regulators for failing to scrutinize the Chinese companies and the way they handle data going back nearly two decades.

Speedier 5G wireless technology is rekindling a long-running debate over the best way to reach America’s internet dead zones: by wire or by wave. Cellphone carriers including Verizon and T-Mobile  say new wireless technologies will let them serve more home-broadband subscribers without sending a technician to wire up a customer’s house. The companies have promised to build profitable services where other wireless broadband companies, like Clearwire, have failed to build a viable business, but they have yet to detail how many wireless homes they serve.

Trump administration officials sought to revoke federal licenses used by China Telecom to do business in the US as part of a broader campaign to curb global Chinese technology interests on national security grounds. A collection of federal agencies led by the Department of Justice and including the departments of Defense and Homeland Security asked the Federal Communications Commission to permanently revoke licenses the Chinese internet service provider’s US subsidiary has used since 2007 to act as a “common carrier” connecting domestic and overseas networks.

US officials granted Google permission to turn on a high-speed internet link to Taiwan but not to the Chinese territory of Hong Kong, citing national-security concerns in a ruling that underscores fraying ties between Washington and Beijing.

T-Mobile closed its takeover of Sprint after a nearly two-year battle with federal and state authorities. The merger, worth about $31.8 billion based on T-Mobile’s closing stock price March 31, marks the end for Sprint as a company and a brand. The once-thriving network operator spent most of the past decade losing customers after a string of engineering and marketing missteps gave the upper hand to rivals, T-Mobile chief among them. The combination turns the US’ third and fourth-largest wireless carriers into a far more substantial third place competitor to Verizon and AT&T.

Apparently, the Federal Communications Commission is seeking hundreds of millions of dollars in fines from the country’s top cellphone carriers after officials found the companies failed to safeguard information about customers’ real-time locations. The FCC informed AT&T, Sprint, T-Mobile, and Verizon of pending notices of apparent liability. Such notices aren’t final, and the companies can still argue they aren’t liable or should pay less. It would ultimately fall on the Justice Department to collect any penalties.

Sprint and T-Mobile have agreed on new terms for their merger, as the wireless carriers race to close the deal. The parties will improve the exchange ratio in the all-stock deal for T-Mobile’s parent, Deutsche Telekom AG. Originally, 9.75 Sprint shares were to be exchanged for each T-Mobile share. Under the revised deal, SoftBank Group, which owns more than 80% of Sprint’s common stock, will exchange the equivalent of 11 of its shares for each T-Mobile share.