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  2. Optus - Wikipedia

    en.wikipedia.org/wiki/Optus

    Customers who remained with Telstra could dial the override code of 1456 before the area code and phone number to manually select Optus as the carrier for that single call. Since 1 July 1998, consumers have the choice of preselecting their preferred long-distance carrier or dialling the override code before dialling a telephone number.

  3. 2022 Optus data breach - Wikipedia

    en.wikipedia.org/wiki/2022_Optus_data_breach

    Home Affairs and Cyber Security Minister Clare O'Neil said Optus was at fault for the attack, refuting Optus's argument the attack was complicated. O'Neil also stated the attack should not have happened, stating: "Responsibility for the security breach rests with Optus[,] and I want to note that the breach is of a nature that we should not expect to see in a large telecommunications provider ...

  4. Intercept message - Wikipedia

    en.wikipedia.org/wiki/Intercept_message

    The number you have reached, old number, has been changed to a non-published number. [ 3 ] In the past, the call would be forwarded to an intercept operator after usually two readings of the message; today, however, this procedure is not observed, and on some systems a fast busy signal follows the second reading of the message instead.

  5. 2023 Optus outage - Wikipedia

    en.wikipedia.org/wiki/2023_Optus_outage

    The 2023 Optus outage was an unplanned outage of all Optus internet, cellular and fixed-line services in Australia first detected on 8 November 2023 at 04:05 AEDT. [2] The outage caused disruption across government and corporate sectors including hospitals, banks, train services, EFTPOS payment systems, and calls to emergency services .

  6. Mobile network codes in ITU region 5xx (Oceania) - Wikipedia

    en.wikipedia.org/wiki/Mobile_network_codes_in...

    This list contains the mobile country codes and mobile network codes for networks with country codes between 500 and 599, inclusively – a region that covers Oceania, Maritime South East Asia, and Thailand.

  7. Boost Mobile (Australia) - Wikipedia

    en.wikipedia.org/wiki/Boost_Mobile_(Australia)

    Boost Mobile was founded by Peter Adderton in Sydney, Australia in 2000. [1] Optus began licensing the Boost Mobile brand that same year. [2] Paul Keating, former Prime Minister of Australia invested $500,000 for a 29% shareholding.

  8. Amaysim - Wikipedia

    en.wikipedia.org/wiki/Amaysim

    Amaysim Australia Ltd. is an Australian provider of mobile phone plans. Amaysim operates as a mobile virtual network operator on the Optus mobile network, [1] and specialises in offering a range of SIM-only mobile plans. As of June 2024, Amaysim had over 1.5 million mobile subscribers.

  9. 4G connectivity in Australia - Wikipedia

    en.wikipedia.org/wiki/4G_connectivity_in_Australia

    In September 2014, Optus launched LTE Carrier Aggregation in Sydney, Melbourne, Brisbane and Adelaide. Optus markets LTE Carrier Aggregation as "4G Plus". Optus combines two 20 MHz channels of 2.3 GHz spectrum. [6] In Brisbane, Optus has up to 4CA band combinations using Band 1, 3, 7, 28 and the total bandwidth is 55 MHz.