Attorney General Brown Joins Push For Stronger Robocall Protections


Maryland Attorney General Anthony Brown has joined a bipartisan coalition of 48 attorneys general urging the FCC to strengthen rules designed to prevent illegal robocalls. The coalition wants phone companies to more thoroughly vet providers that route calls through U.S. networks, monitor them more regularly, and take action against those that violate federal rules. Included in the letter is a call to the FCC to implement new rules quickly and establish enforcement penalties. Americans received more than 29.6 billion scam robocalls and texts last year and lost nearly $2 billion to those scams.
 
 
Additional Information from the Maryland Attorney General’s Office:

Phone calls get routed through a series of phone companies before they reach your phone. The FCC requires all voice service providers to take reasonable measures to vet the phone companies that originate and route calls. However, some voice service providers fail to do so, allowing unlawful robocalls onto U.S. communications networks. Last year, Americans received more than 29.6 billion scam robocalls and texts and lost nearly $2 billion to these scams. The attorneys general are asking the FCC to strengthen voice service providers’ obligation to vet their upstream provider customers, and to require the same scrutiny and diligence of the entities involved in the implementation of STIR/SHAKEN, which is the framework developed to prevent caller ID spoofing.  

 

In addition to what the FCC is already doing, the attorneys general urge it to:  

 

  • Mandate five categories of baseline KYUP measures. The attorneys general are asking the FCC to demand that voice service providers collect more detailed – and verified – information from their upstream provider customers. The attorneys general also urge the FCC to require voice service providers to more thoroughly vet upstream providers’ compliance with FCC rules, monitor those upstream providers regularly, and refuse or end service to upstream providers that aren’t following the law. 
  • Require additional triggers for KYUP monitoring. Right now, a voice service provider generally monitors or reviews information about, or the conduct of, their upstream provider customers when they are entering into or renewing an agreement with the upstream provider, or when they receive evidence that an upstream provider may be breaking the law. The attorneys general argue that the FCC should require upstream provider monitoring more regularly to help prevent bad actors from operating unchecked.  
  • Strengthen STIR/SHAKEN protections. STIR/SHAKEN is a framework to ensure that a caller is placing calls from phone numbers that are not being spoofed. The attorneys general urge the FCC to ensure that all providers, regardless of where they are in the path of a call, be aware of and comply with caller ID authentication obligations.  
  • Implement new rules quickly, establish enforcement penalties, and require retention of KYUP data. The attorneys general ask that any rules to help cut down on unlawful robocalls should be implemented as soon as possible. They also support base penalties for providers that don’t meet upstream provider monitoring requirements or violate STIR/SHAKEN. They are also asking the FCC to require voice service providers to collect and retain data related to KYUP verification and monitoring, so that these data will be available to attorneys general and other law enforcers for future investigations. 

  

Attorney General Brown is part of the Anti-Robocall Multistate Litigation Task Force, which launched Operation Robocall Roundup in 2025. In phase 1 of the operation, the task force sent warning letters to 37 smaller voice providers that were disregarding their obligations to mitigate the origination and transmission of unlawful and/or suspicious robocalls by failing to comply with certain baseline mandates from the FCC. Just two weeks ago, the FCC issued an order to six of those companies, ordering them to fix their robocall protection issues or risk losing the ability to route any calls across the U.S. telephone network.  

 

In phase 2, the task force:  

 

  • Expanded its crackdown to four of the country’s largest intermediate voice service providers.  
  • Pushed the FCC to strengthen its Know Your Customer rules to require phone companies to verify who is making calls using their networks and what kinds of business their customers are conducting.   

  

Attorney General Brown is joined in signing this letter by the attorneys general of Alabama, Alaska, American Samoa, Arizona, Arkansas, Colorado, Connecticut, Delaware, the District of Columbia, Georgia, Hawaiʻi, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, and Wyoming.