New Jersey Attorney General Jennifer Davenport is pushing federal regulators to strengthen rules aimed at stopping illegal robocalls before they reach consumers.

Davenport is co-leading a bipartisan coalition of 49 state and territory attorneys general calling on the Federal Communications Commission to strengthen its “Know Your Upstream Provider” requirements, which govern how telephone companies vet the providers sending call traffic through their networks.

Under the proposed changes, phone companies would be expected to conduct more thorough checks on the providers they do business with, continuously monitor their activity and take additional precautions when dealing with higher-risk customers, including high-volume calling services.

The attorneys general argue that stronger requirements would make it easier to identify companies carrying large volumes of illegal calls and cut scammers off from the legitimate telephone network before those calls reach consumers.

“New Jerseyans are fed up with a constant barrage of unwanted robocalls,” Davenport said, adding that stronger rules would give phone companies greater incentive to conduct proper due diligence before accepting call traffic.

According to the Attorney General’s Office, Americans received approximately 29.6 billion scam robocalls and texts last year and lost nearly $2 billion to scams connected to fraudulent calls and messages.

The latest effort builds on previous multistate actions targeting illegal robocall operations and companies accused of allowing fraudulent call traffic to pass through their networks.

New Jersey is one of the lead states in the latest coalition, alongside Indiana, North Carolina, Ohio and Pennsylvania.