Mexico City – Carlos Slim, who vies with Bill Gates as the world’s richest man, may face increased scrutiny at home as antitrust regulators step up efforts to curb the dominance of the telephone companies that created his fortune.
The Federal Competition Commission wants to identify markets where Telefonos de Mexico SAB and America Mo vil SAB have a share large enough that would require special regulation to encourage entrants, commission president Eduardo Perez Motta said. The probe will begin before the end of the year, he said.
“We want a level playing field for all telecommunications players,” Perez Motta said in an interview.
Shares of Telefonos de Mexico, known as Telmex, fell their most in four months. Telmex had 91 percent of the nation’s fixed telephone lines as of March 31.



