Exhibit 99.1 NEWS RELEASE TDS reports third quarter 2024 results Recent Highlights* As previously announced, TDS will hold a teleconference on November 1, 2024, at 9:00 a.m. CDT. Listen to the call live via the Events & Presentations page of investors.tdsinc.com. CHICAGO (November 1, 2024) — Telephone and Data Systems, Inc. (NYSE:TDS) reported total operating revenues of $1,224 million for the third quarter of 2024, versus $1,278 million for the same period one year ago. Net income (loss) attributable to TD ...