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The first fixed-line telephone system was installed in Thailand (Siam) under the Ministry of Defence in 1881, and later its operation was transferred to the Post and Telegraph Department. The Telephone Organization of Thailand (TOT) was established in 1954 to manage the telephone system. [4]
Dialog discontinued its 3G service on 15 November 2023. [160] Dialog has acquired Airtel on 27 June 2024. ... Red One Network (Thailand) Co., Ltd Timor-Leste
Total Access Communication Public Company Limited (commonly known as DTAC, and stylized as DTAC or dtac) is a GSM mobile phone company in Thailand.It is the nation's third largest GSM phone company, after AIS and True.
Thailand: AIS: Mar 2016: 10 MHz Jan 2016 5 MHz, UMTS: 20 MHz Jan 2016: N/A: N/A: 5 MHz May 2017 5 MHz, GSM - 20 MHz, 5G NR - - 100 MHz, 5G NR: 4x4 MIMO (Mar 2016) 256 QAM (Mar 2016) 64 QAM UL (Mar 2017) LTE-LAA (Aug 2017) 20 MHz (CA_1A_3A) (Cat.4) (Jan 2016) 25 MHz (CA_1A_3A) (Cat.6) (Mar 2016) 30 MHz (CA_1A_3A_8A) (Cat.9) (Jul 2016) 30 MHz (CA ...
Mobile phones in Thailand use 900/1800 MHz for GSM. Domestic roaming service is available free within Thailand in places where there is only a single transmitter in place due to restrictions. As codes are being exhausted, a new range, 09x, is available for assignment.
TrueMove H launched its 4G service in a limited scale on 8 May 2013. It was the first 4G service in Thailand using LTE technology. [5] In 2012, True's subsidiary, Real Future (now True Move H), won the 2100 MHz license, together with its rivals AIS and Dtac. [6] In 2015, True Move H won the licenses for 900 MHz and 1800 MHz. [citation needed]
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In December 2009, TOT became Thailand's first 3G mobile phone service provider, launching 3G mobile phone service (Phase 1) via the brand TOT3G, by enhancing 584 base stations in Bangkok and its vicinity to accommodate 500,000 numbers for the service and with a goal of nationwide coverage by the end of 2011.