Corporate brand
UnclaimedDTAC was a major Thai mobile telecommunications operator that merged with True Corporation in 2023.
Last updated August 26, 2026
AI crawler reads
No AI crawler has read this profile yet.
Overview
DTAC was the consumer-facing brand of Total Access Communication Public Company Limited, a Thai mobile telecommunications operator associated with Norway's Telenor Group. The company operated GSM mobile services in Thailand and became one of the country's three largest cellular operators, competing primarily with Advanced Info Service (AIS) and True Mobile. Its services covered prepaid and postpaid mobile voice, messaging, mobile internet, international roaming, and successive generations of wireless connectivity. The brand served the Thai market through both conventional postpaid offerings and the prepaid DTAC Happy proposition. Its network evolved from GSM and EDGE to 3G, 4G LTE, and preparations for 5G. DTAC operated spectrum in the 850 MHz, 1800 MHz, and 2100 MHz bands and reported more than 13,000 base stations in 2016. LTE service began commercially in 2014 on 2100 MHz, followed by wider use of 1800 MHz and 2100 MHz capacity in Bangkok and other major areas. The company also maintained international roaming arrangements covering numerous countries. DTAC developed a strong position as a national challenger in a market dominated by large mobile operators. It was recognized as Thailand's Best Mobile Operator by the Asian MobileNews Awards for three consecutive years from 2005 through 2007. The business was listed in Thailand and Singapore and remained closely connected to Telenor, including through shared branding and ownership relationships. In 2011, the company reported 23.2 million subscribers and approximately 30 percent subscriber market share. By 2019, it reported 20.642 million mobile subscriptions and 3,904 employees. The company's later history was shaped by consolidation in Thailand's telecommunications sector. In November 2021, Telenor and Charoen Pokphand Group announced an agreement to explore combining DTAC with True Corporation. The proposed transaction involved the country's second- and third-largest operators by subscribers and required regulatory review. Thailand's National Broadcasting and Telecommunications Commission acknowledged the transaction in October 2022. The combination was completed in 2023 under the True Corporation name: the newly merged company was established on March 1, 2023, and its shares began trading under the TRUE ticker on March 3, 2023. As a result, DTAC ceased to exist as an independent listed operator, although the DTAC name and customer-facing services were associated with the post-merger telecommunications business.
History
DTAC was the brand associated with Total Access Communication Public Company Limited, a Thai GSM mobile operator that developed into one of the country's principal telecommunications companies. Its business was built around mobile connectivity in Thailand, where it competed with AIS and True Mobile for subscribers, network coverage, spectrum, and data usage. The operator's consumer portfolio combined prepaid and postpaid mobile services. Its prepaid business was marketed under the DTAC Happy name, while the broader DTAC brand covered voice, messaging, mobile internet, roaming, and network access. As customer demand shifted from voice toward smartphones and data, DTAC introduced increasingly flexible internet packages, including daily, hourly, and monthly options. It also supported international roaming across a broad group of destinations. Network development proceeded through several technology generations. DTAC provided GSM and EDGE services before expanding into 3G and 3G+ using 850 MHz and 2100 MHz spectrum. Commercial 4G LTE service began in 2014 on 2100 MHz. LTE capacity was subsequently expanded through 1800 MHz and 2100 MHz deployments, first in Bangkok and then in other major areas. The company stated that it aimed to achieve nationwide LTE coverage by the end of 2016. In 2020, it announced plans for a home-based ultra-high-speed broadband service using 26 GHz spectrum obtained in Thailand's 5G auction. Telenor was a central shareholder and strategic influence. DTAC and Telenor used related visual branding, and DTAC was owned by Telenor through direct and indirect interests. In April 2012, BCTN Holding became the company's parent entity. DTAC remained listed in Thailand and Singapore and reported substantial scale: 23.2 million subscribers at the end of 2011, approximately 30 percent subscriber share at that time, 20.642 million mobile subscriptions in 2019, and 3,904 employees in 2019. The final stage of DTAC's independent corporate history was defined by a proposed merger with True Corporation. On November 22, 2021, Telenor and Charoen Pokphand Group announced that they would explore combining True and DTAC. The transaction was subject to regulatory review because it would consolidate two major Thai mobile operators. The NBTC acknowledged the transaction in October 2022. The merger took effect in 2023, with the combined company retaining the True Corporation name and adopting the TRUE ticker on the Stock Exchange of Thailand. This ended DTAC's existence as an independent listed telecommunications company, while the DTAC identity continued to have relevance as a service and customer brand within the combined operator.
- 2023
Merger completed
[1]The merged company was established as True Corporation on March 1, 2023, and listed under TRUE on March 3.
- 2022
Regulatory acknowledgment of merger
[1]Thailand's NBTC acknowledged the proposed transaction at its October 20 meeting.
- 2021
Proposed merger with True Corporation announced
[1]Telenor and Charoen Pokphand Group announced that they would explore combining DTAC and True Corporation.
- 2020
26 GHz broadband plans
[1]DTAC announced plans for a home-based ultra-high-speed broadband service using 26 GHz spectrum acquired in the 5G auction.
- 2016
Nationwide LTE expansion target
[1]The operator expanded 4G coverage beyond Bangkok and stated that it expected nationwide LTE coverage by the end of the year.
- 2014
Commercial LTE launch
[1]DTAC began commercial 4G LTE service in Thailand using 2100 MHz spectrum.
- 2012
BCTN Holding becomes parent company
[1]BCTN Holding became DTAC's parent company in April 2012.
- 2007
Third consecutive Best Mobile Operator award
[1]DTAC received the award for the third consecutive year, covering the 2005–2007 period.
- 2005
Beginning of a three-year Best Mobile Operator recognition
[1]DTAC began a run of three consecutive Asian MobileNews Awards recognitions as Thailand's Best Mobile Operator.
Products and positioning
A nationwide Thai mobile operator positioned as a major alternative to AIS and True Mobile, combining prepaid accessibility with postpaid, mobile-data, roaming, and increasingly advanced wireless-network services.
Prepaid mobile
DTAC Happy
DTAC Happy was the operator's prepaid consumer proposition. It provided mobile voice, messaging, and data access without requiring a conventional postpaid contract. The offer formed an important part of DTAC's mass-market presence and was supported by short-term and recurring mobile internet packages.
Postpaid mobile
DTAC postpaid
DTAC's postpaid portfolio served customers seeking recurring mobile voice and data allowances, with access to the operator's 3G, 4G LTE, and later-generation network services. Plans formed part of the company's consumer and business telecommunications offering.
Mobile broadband · 2014
DTAC 4G LTE
DTAC's LTE service began commercially in 2014 on 2100 MHz spectrum. The company later expanded LTE capacity through 1800 MHz and 2100 MHz deployments, emphasizing faster mobile internet and broader coverage in Bangkok and major areas of Thailand.
Mobile network service
DTAC 3G+
DTAC 3G+ provided mobile data through WCDMA and HSPA/HSPA+ technology on 850 MHz and 2100 MHz bands. The service supported compatible devices and offered advertised speeds of up to 42 Mbit/s in appropriate network conditions.
Roaming service
DTAC international roaming
DTAC offered international roaming for subscribers traveling outside Thailand. The company reported roaming agreements covering 147 countries, allowing customers to use mobile services across a broad international footprint.
Brand decisions
2021
Proposed combination with True CorporationM&ABackground
Thailand's mobile market was consolidating, and DTAC's owner Telenor explored a combination with Charoen Pokphand Group's True Corporation.
Action taken
Telenor and Charoen Pokphand Group announced an agreement to explore an approximately US$8.6 billion merger plan, subject to regulatory approvals.
Aftermath
The NBTC acknowledged the transaction in 2022, and the merger was completed in 2023 under the True Corporation name.
announced transaction value. (2021)
2020
Plan for 26 GHz home broadbandStrategyBackground
DTAC sought to extend beyond conventional mobile connectivity after obtaining 26 GHz spectrum in Thailand's 5G auction.
Action taken
The company announced plans to launch a home-based ultra-high-speed broadband service by June 2020.
Aftermath
The cited material does not establish whether the planned service launched as announced.
2014
Commercial 4G LTE launchProduct launchBackground
Growing smartphone adoption and demand for faster mobile data increased competitive pressure among Thai operators.
Action taken
DTAC introduced commercial LTE service using the 2100 MHz band.
Aftermath
The company subsequently expanded LTE through 1800 MHz and 2100 MHz capacity in Bangkok and other major areas.
Recent events
Huawei and Telenor present an energy-efficient antenna demonstration[2]
Huawei and mobile operator Telenor jointly presented a commercial energy-efficient antenna demonstration during MWC22 Barcelona. The project used Huawei antennas in Telenor's Thai subsidiary DTAC network and was reported to achieve up to 15% energy savings per site.
- Unconfirmed
Telenor and CP announce plan to combine Thai mobile units[3]
Telenor and CP said they plan to combine their Thai mobile units, dtac and True, in a merger that would create a new company. The tie-up remains subject to board, shareholder and regulatory approval.
DTAC acquires Mail.dat and Mail.XML specifications[4]
DTAC purchased the Mail.dat and Mail.XML specification standards and related assets from Idealliance under a July 8, 2020 sales agreement; the materials are to be owned and operated by DTAC.
Sources4 sources
Cite this profile: Cite the canonical profile. /brand-wiki/dtac · Editorial policy · How profiles are compiled