PT XLSMART Telecom Sejahtera Tbk, formerly PT Excelcomindo Pratama Tbk and PT XL Axiata Tbk, is an Indonesian mobile telecommunications services operator headquartered at Jakarta, jointly owned by Malaysia-based company Axiata and Indonesian diversified conglomerate Sinar Mas. It is the third largest mobile telecommunications company in Indonesia. The operator's coverage includes Java, Bali, and Lombok as well as the principal cities in and around Sumatra, Kalimantan and Sulawesi. XLSMART offers home and mobile communication broadband services through their 2G GSM, 4G LTE, 5G NR and optical fiber network infrastructure under the three core brands: XL, Axis, and Smartfren. Initially, XLSMART provided cellular mobile telephony services using the GSM 900 technology. A few years after launching services, the company was awarded a license for implementing a DCS 1800 network, and to operate an ISP and VoIP service. In 2006, XL obtained a 3G license, which services launched in September of the same year. Wikipedia