Mobile

TOT Public Company Limited, operating as AIS-T / TOT Mobile in Thailand, represents a unique chapter in the country's mobile telecommunications landscape. Primarily known for its former state-owned status, TOT (Telephone Organization of Thailand) has historically played a crucial role in developing Thailand's communication infrastructure. Today, under the operating banner of AIS-T / TOT Mobile, it provides mobile services, evidenced by its unique MCC (Mobile Country Code) and MNC (Mobile Network Code) pairing of 520-15. The MCC identifies Thailand, while the MNC pinpoints TOT Public Company Limited within the country. Understanding these codes is fundamental for identifying networks and ensuring device compatibility while roaming. Although Thailand is geographically situated in Southeast Asia, for telecommunications purposes, it is usually categorized by global network operators as part of the APAC region. While AIS and TrueMove H often dominate discussions about Thailand's mobile market, the role of AIS-T / TOT Mobile is still important. It has a specific strategic partnership with Advanced Info Service (AIS), Thailand’s largest mobile operator, leading it to operate under the banner 'AIS-T / TOT Mobile'. Due to its past history, TOT had significant network infrastructure in less densely populated regions of Thailand, potentially offering coverage in areas where other networks might have had a weaker signal at one time. Although TOT no longer operates as a single independent operator, instead leveraging the infrastructure and network of AIS, it will continue to support its existing subscribers in accordance with previous agreements. Its distinctive MCC and MNC code (520 15) therefore remains relevant for technical identification of devices still registered on this network, especially within databases cataloging mobile network information.