UPDATE 2-AT&T, U.S. telecom groups seek to block new Internet rules
May 01, 2015 at 16:59 PM EDT
WASHINGTON, May 1 (Reuters) - AT&T Inc, CenturyLink Inc and U.S. telecom and cable industry groups called for regulators to block parts of new rules for Internet service providers on Friday, citing "crushing" compliance costs and threats to investment.
