Telstra Corporation Limited is telecommunications company which builds and operates telecommunications networks and markets voice, mobile, internet access, pay television and other products and services. Telstra has a long history in Australia, originating together with Australia Post as the Postmaster-General's Department.

On 1 July 1975, responsibility for postal services was transferred to the Australian Postal Commission (Australia Post). The Australian Telecommunications Commission (ATC), trading as Telecom Australia, ran domestic telecommunication services.

In 1993, the Overseas Telecommunications Commission, a separate government body established in 1946, was merged with the Australian Telecommunications Corporation into the short-lived Australian and Overseas Telecommunications Corporation (AOTC) which continued trading under the established identities of Telecom and Overseas Telecommunications Commission (OTC).

The AOTC was renamed to Telstra Corporation Limited in 1993. The name "Telstra" is derived from the word Telecom Australia (TEL from Telecom and STRA from Australia). The corporation then traded under the "Telstra" brand internationally and "Telecom Australia" domestically until uniform branding of "Telstra" was introduced throughout the entire organisation in 1995.

Telstra owns and operates a series of retail stores known as Telstra Stores. Some are directly owned and operated by the Telstra Corporation and some are operated by licensees. As of May 2016, Telstra has a total of 360 retail stores across Australia.This includes several new 'Discovery' stores, where Telstra has invested millions in redesigning key stores based on local requirements. These designs include new displays, accessory shops, digital tickets and free baristas.

In Australia, the company provides 16.9 million Mobile services, 7.2 million Fixed voice services and 3.3 million Retail fixed broadband services. Telstra is quite known for helping its customers in improving the ways in which they live and work through connection.

According to Statista, Telstra Corporation Limited is the most valuable telecommunications company in Australia 2020, with brand value of 11.68 million Australian dollars.

According to Statista and en.wikipedia