An anonymous reader quotes a report from Bloomberg: AT&T and other broadband providers asked the U.S. Supreme Court to overturn the Obama-era "net neutrality" rule barring internet service providers from slowing or blocking rivals' content. The appeals, filed Thursday, will put new pressure on a rule enacted in 2015 when the Federal Communications Commission was under Democratic control. Filing a separate appeal from AT&T were the United States Telecom Association, a trade group, and broadband service provider CenturyLink. The embattled net neutrality rules bar internet service providers such as AT&T, Verizon and Comcast from blocking or slowing some web traffic in favor of other content -- their own or a paying customer's. "The practical stakes are immense," AT&T said in its appeal of a ruling that backed the FCC. The company pointed to a dissenting opinion that said the regulation "fundamentally transforms the internet" and will have a "staggering" impact on infrastructure investment.