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Advanced Info Service Public Company Limited, together its subsidiaries, provides communication products and services primarily in Thailand. It is involved in the operation of cellular telephone networks, networks, and telecommunication and internet services. The company also distributes handsets; cash cards and electronic payment services; and internet equipment. In addition, it provides international telephone, broadcasting network, and television broadcasting services for various channels; and digital platform, as well as insurance brokerage services. Further, the company offers IT system service development, content aggregator, and billing and collection outsourcing services; call center services; and space, and land and building services, as well as related facilities. Additionally, it provides internet data center, and internet and satellite uplink-downlink services for communications; mobile contents, application development, and digital marketing services; fixed-line services and data communication network services; software development services; online domain names; services of infrastructure development of fibre optic networks; and training and online advertising services. The company is involved in resale of mobile phone, voice over internet phone, and leased circuit services. Advanced Info Service Public Company Limited was founded in 1986 and is headquartered in Bangkok, Thailand.

Telenor ASA, together with its subsidiaries, operates as a telecommunication company worldwide. It operates through four segments: Nordics, Asia, Infrastructure, and Amp. The company offers mobile subscriptions and handsets, telephony, broadband, data security, communications services, and TV services to residential and business customers, as well as wholesale services. It also builds, develops, maintains, and leases passive telecom infrastructure, such as towers, masts, and buildings. The company also provides machine-to-machine, internet-of-things, and inbound and national roaming services. Telenor ASA was founded in 1855 and is headquartered in Fornebu, Norway.

Telia Company AB (publ) provides communication services to businesses, individuals, families, and communities in Sweden, Finland, Norway, Denmark, Lithuania, Estonia, and Latvia. It offers mobile, broadband, television, and fixed-line services; and networking, cloud and security, mobility, enterprise mobile network, contact center, managed mobility services, collaboration solutions, enterprise telephony, Internet of Things (IoT), carrier ethernet, dedicated internet access, wavelengths, IP Transit, dark fiber, and colocation solutions. The company also provides IoT connectivity, building monitoring, smart public transport, and smart utilities, as well as transport and logistics solutions comprising connected vehicle, asset tracking, and fleet management services. It markets its products and services under the Telia, Telia Cygate, TV4, C More, Halebop, Fello, MTV, Phonero, Onecall, MyCall, CallMe, MIT Tele, Ezys, Diil, Super, and Imt brand names for transport and logistics, public transport, manufacturing, retail, utilities, buildings and real estate, and public sector industries. The company was formerly known as TeliaSonera AB (publ) and changed its name to Telia Company AB (publ) in April 2016. Telia Company AB (publ) was founded in 1853 and is based in Solna, Sweden.

Telefônica Brasil S.A., together with its subsidiaries, operates as a mobile telecommunications company in Brazil. Its fixed line services portfolio includes local, domestic long-distance, and international long-distance calls; and mobile portfolio comprises voice and broadband internet access through 3G, 4G, 4.5G, and 5G, as well as mobile value-added and wireless roaming services. The company also offers data services, including broadband and mobile data services. In addition, it provides pay TV services through IPTV technologies; network services, such as rental of facilities; other services comprising internet access, private network connectivity, computer equipment leasing, extended service, caller identification, voice mail, cellular blocker, and others; wholesale services, including interconnection services to users of other network providers; and digital services, such as entertainment, cloud, and security and financial services. Further, the company offers multimedia communication services, which include audio, data, voice and other sounds, images, texts, and other information, as well as sells devices, such as smartphones, broadband USB modems, and other devices. Additionally, it provides telecommunications solutions and IT support to various industries, such as retail, manufacturing, services, financial institutions, government, etc. It markets and sells its solutions through own stores, dealers, retail and distribution channels, door-to-door sales, and outbound tele sales. The company was formerly known as Telecomunicações de São Paulo S.A. - TELESP and changed its name to Telefônica Brasil S.A. in October 2011. The company was incorporated in 1998 and is headquartered in São Paulo, Brazil.