The year-long U.S. recession has started to take its toll on the telecomm sector. AT&T and Verizon shares were hit hard Monday after being downgraded by Bernstein Research. The firm downgraded Verizon from market perform to underperform and AT&T from outperform to market perform. Verizon stock was down 7.16 percent to $32.15 per share and AT&T stock was down 4.35 percent to $28.15 in late-day trading on Monday.