Using a 1961 federal law designed to stop illegal gambling, the state has directed 11 telephone and Internet service providers to block nearly 200 gambling Web sites.

The state Alcohol and Gambling Enforcement Division says it expects responses from AT&T Internet Services, Charter Communications, Comcast Cable and the other providers within two or three weeks.

AT&T, Charter and Comcast representatives didn’t immediately respond to requests for comment.

“We are putting site operators and Minnesota online gamblers on notice and in advance,” says John Willems, director of AGED. “Disruption of these sites’ cash flow will negatively impact their business models. State residents with online escrow accounts should be aware that access to their accounts may be jeopardized and their funds in peril.”