AT&T MANAGEMENT SERVICES, INC.UEN S85FC3573G Copy ?Singapore's unique identifier for an entity in the public record. Learn more Status: InactiveSingapore Company details Company type?The legal or entity type recorded by the relevant source. Learn more Foreign Company Branch Registration date22 Jun 1985 SSIC code?Singapore's classification code for a company's principal business activity. Learn more 70201 Data sources Company records