December opened with a switching war and a spectrum blockbuster. T-Mobile rolled out its AI-powered Easy Switch tool on December 1, letting AT&T and Verizon customers log into their carrier accounts through T-Life and see exactly what switching would save them, and by December 4 AT&T had sued, accusing T-Mobile of illegally scraping its servers. On December 4 the GSMA published its eSIM Compliance Report 2025, the industry's most complete snapshot of certified eUICC products, devices, and platforms across consumer and IoT. And on December 5, the FCC's Wireless and Space Bureaus accepted SpaceX's application for filing to operate a new satellite system delivering supplemental coverage from space over EchoStar's AWS-4 and H Block spectrum, formally starting the clock on one of the biggest spectrum transfers in US history.
The House passed the TikTok divest-or-ban bill 352-65 — a bipartisan margin almost nothing achieves in Washington — sending the fate of 170 million American users toward a hesitant Senate. The same Wednesday, the European Parliament gave final approval to the AI Act, the world's first comprehensive AI law, starting a multi-year compliance clock for every model provider touching the EU. And the FCC quietly redefined broadband itself, raising the national benchmark from 25/3 to 100/20 Mbps — instantly reclassifying millions of connections as inadequate and redrawing the map that federal funding follows.