Smart Communications, Inc., commonly referred to as Smart, is a wholly owned wireless communications and digital services subsidiary of PLDT, Inc. a telecommunications and digital services provider based in the Philippines. The company has 58.3 million mobile subscribers on its GSM network as of 2017 , under the brands Smart, Sun, and TNT. Smart's wireless broadband subscribers number 3.8 million under the brands Smart Bro and Sun Wireless Broadband. Smart offers commercial wireless services through its 2G, 3G, 3.5G HSPA+, and 4G LTE networks, with LTE-A currently being deployed in key areas in the Philippines. It has recently entered the research and development phase for its 5G services. Smart's terrestrial wireless telephony service is being complemented by its satellite communication services Smart Sat and Marino which also serve the global maritime industry. The company has introduced wireless offerings such as Smart Money, a mobile electronic wallet that also enables its SMS-based money remittance service Smart Padala. It has also been recognized for introducing the world's first over-the-air electronic prepaid loading service called Smart Load. One of its services, PasaLoad, allows its users to pass phone credits to other Smart prepaid accounts through SMS.