New York Attorney General Eric Schneiderman said the gang had been under surveillance for 11 months, but authorities decided to act now in the hope of disrupting any parties that might have been in the works for the upcoming Super Bowl weekend.
More than half of the 18 suspects charged in the case were under arrest Thursday, including a Long Island woman who authorities said went by the code-name ''Beige'' and was the primary ringleader. The rest were being sought.
At a midday news conference, Schneiderman held up a credit card reader that he said had been used by the gang, and said investigators had so far identified $3 million worth of charges processed in connection with sex and drug sales.
''Keep in mind that most johns pay cash,'' Schneiderman said. ''So that's a staggering number for an enterprise like this.''
Authorities said records showed that the ring set up phony clothing, wig, beauty supply and limousine businesses to disguise payments and launder money.
Many of the people involved with the organization were Asian immigrants, authorities said. In some intercepted conversations, the suspects used ''Soojaebi,'' a Korean noodle and vegetable soup, as a code-word for cocaine.
Schneiderman said investigators didn't have a lot of information on the sex workers involved in the operation, because women cycled in and out, but he said that authorities considered the women to be exploited ''victims,'' and said only their managers would face charges.
The ring marketed its women in racy TV commercials that aired on late-night, adult-oriented cable access television programs, authorities said.
One recent advertisement for the ''Asian Wave'' escort service featured a naked woman writhing on a bed, while an announcer promised that the service's escorts were ''always a treat, and always fast to your door.''
The ring also advertised on the Internet and communicated with repeat customers by text message, authorities said, including one sent last week boasting that the service had just ''updated our girls.''
''New sexy & beautiful girls R in town waiting for u,'' it said.
The attorney general's office said that after some clients were impaired by drugs, the ring would add extra charges to their credit cards, at least once exceeding $10,000 for one night.
The woman authorities identified as ''Beige'' was named in court papers as Hyun Ok Yoonung, or Hyun Ok Yoon, of Woodbury, New York.
She was arraigned Thursday night, and didn't enter a plea as she listened to proceedings via an interpreter. She was being held on $250,000 bond.
Assistant Deputy Attorney General Howard Feldberg said the woman was heard on wiretaps talking about transactions and personnel, and about certain clients.
Defense attorney Jae Lee said the woman is married with two young children, and that her ''family ties should count for a lot'' in considering her bail.
Among the defendants brought before a judge were Kyung Chun Min, whose lawyer, Raymond J. Aab, called her a salaried ''phone-call answerer'' at best, and Hajoung Heath, whom prosecutors portrayed as striving to get credit-card machines and a merchant account to build her piece of the ring's drugs-and-sex trade.
Heath's lawyer, Kira Treyvus, said her 39-year-old client has been in the U.S. for 12 years and has an 11-year-old child and a husband who is disabled and unable to work.