Brunei has 3 major telco namely DST, Imagine (TelBru) and Progresif which offers prepaid and postpaid plan. UNN is the Single Wholesale Network with holds all the telecommunication infrastructures in Brunei.OverviewBrunei possesses an extensive system of telecommunications, including telephone and mobile phone service, internet service, television and radio. The majority of Bruneians have access to these services: for every 10. There is telephone service throughout the country and there is international service is to Southeast Asia, Middle East, Western Europe, and the US. • Main lines in use: 122,204 (2022) • :.