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US v. Wilhan Martono (CityXGuide)


In June 2020, the website (“CityXGuide”)—a leading source of online advertisements for prostitution and sex trafficking—was seized by Homeland Security Investigations pursuant to a warrant.  Wilhan Martono, the creator, owner, and operator of CityXGuide, was charged in a 28-count indictment with promotion of prostitution and reckless disregard of sex trafficking, interstate racketeering conspiracy (facilitating prostitution), interstate transportation in aid of racketeering (facilitating prostitution), and money laundering.  In August 2021, Martono pled guilty to Promotion and Facilitation of Prostitution and Reckless Disregard of Sex Trafficking in violation of 18 U.S.C. § 2421A and Conspiracy to Engage in Interstate and Foreign Travel and Transportation In Aid of Racketeering Enterprises in violation of 18 U.S.C. § 371.

Martono created, owned, and operated a network of websites, including CityXGuide, that posted hundreds of thousands of prostitution advertisements in locations across the United States and around the world.  CityXGuide allowed pimps, prostitutes, and brothels to post and pay for advertisements that featured an explicit list of “intimate activities,” along with nude or partially nude photographs, a physical description, work hours, methods of payment, and contact information for the female being advertised. 

Martono purchased the domain names of CityXGuide and its related websites, purchased and maintained the servers that hosted the websites, and purchased the server space, server equipment, and blocks of Internet Protocol (“IP”) addresses—including more than 95 unique IP addresses—to operate the websites. 

Case Open Date
  • Wilhan Martono
Industry Code(s)
  • None
Updated September 23, 2021