The site removed its controversial adult services section from its international sites four months after it did the same for its U.S. sites.
In September, Blumenthal and other officials put the pressure on Craigslist about not adequately policing illegal ads.
Blumenthal, who is also a U.S. Senator-elect, said Craigslist representatives confirmed to his office on Tuesday that it had removed erotic services listings from hundreds of sites in dozens of other countries.
Representatives of San Francisco-based Craigslist did not immediately return messages Tuesday to the Associated Press about when the change went into effect. The removal was first reported on Wired magazine's website.
Blumenthal called the company's decision a victory against sexual exploitation of women and children, and against human trafficking connected to prostitution.
"This move is another important step in the ongoing fight to more effectively screen and stop pernicious prostitution ads," he said.