Pennsylvania Attorney General Dave Sunday has launched “Operation Robocall Roundup,” a new multistate initiative aimed at cracking down on illegal robocalls plaguing residents across the Commonwealth and beyond.

As part of the effort, Sunday joined 50 bipartisan Attorneys General in sending warning letters to 37 voice providers, demanding they immediately stop routing unlawful robocalls through their networks.

“Robocalls are not just an annoyance, many are illegal,” Sunday said. “We expect this action will lead to federal investigations and fewer of these calls.”

Consumers are encouraged to join the Pennsylvania Do Not Call list by visiting here or calling 1-888-777-3406.