Smart Communications, often simply referred to as Smart, is a major mobile network operator providing services worldwide, though its primary operational base and significant subscriber base is located in the Philippines. Operating under Mobile Country Code (MCC) 901 and Mobile Network Code (MNC) 33, Smart is a subsidiary of PLDT, a leading telecommunications provider in the region. Its services include 4G LTE and 5G mobile internet, voice calls, SMS, and a range of digital services tailored to both individual consumers and enterprise clients. Smart competes actively with Globe Telecom, another dominant player in the Philippine mobile market. Focusing its expansion outside of the Philippines across “Worldwide” locations, Smart primarily focuses on catering towards roaming agreements, allowing customers to retain access when traveling, and specific communities. Understanding these codes, specifically MCC 901 and MNC 33, is crucial for identifying and configuring mobile devices to connect to the Smart network while roaming. Smart's growth in subscribers and service offerings reflects the increasing demand for mobile connectivity and digital solutions in the Philippines and beyond, constantly pushing to improve coverage and enhance user experience, particularly in data-intensive applications.