Mobile carriers Telstra, Optus and Amaysim have all grabbed a larger chunk of the Australian market, with Aldi the big winner.
The supermarket company gained the most share in the prepaid market, up 2.8 percent to reach 7.3 percent. Aldi's overall marketshare, including prepaid, postpaid and no contract was up 0.8 percent to three percent total marketshare.
Aldi was also the only carrier to improve customer loyalty, up by seven percent to 92 percent. Aldi was second only to Telstra with 94 percent customer loyalty.
Aldi entered the budget mobile market in 2013, reselling Telstra's 3G network. In May this year, the telco added 4G mobile plans, also on Telstra's network, starting at $15.
Optus' postpaid market share grew to 24.3 percent, with 40 percent of its new customers jumping ship from Telstra. Kantar put the strong showing down to competitive marketing of Apple's products, including the launch of the iPhone 7.
Telstra, Australia's largest mobile carrier, gained 0.2 percent market share. Amaysim grew 0.3 percent.
| Total market Sept-2015 | Total market Sept-2016 | Prepaid Sept-2015 | Prepaid Sept-2016 | Post-paid Sept-2015 | Post-paid Sept-2016 | No contract Sept-2015 | No contract Sept-2016 | |
| Share (%) | 32.6 | 31.2 | 55.6 | 53.4 | 11.9 | 15.4 | ||
| Telstra | 39.7 | 39.9 | 39.9 | 41.5 | 41.3 | 41.2 | 31.9 | 31.9 |
| Optus | 21.4 | 22.3 | 20.9 | 20.2 | 22.6 | 24.3 | 17.7 | 19.5 |
| VHA | 15.1 | 14.9 | 15.3 | 14.6 | 16.1 | 16.1 | 9.9 | 11.2 |
| Vodafone | 14.9 | 14.8 | 15.1 | 14.5 | 15.9 | 16 | 9.9 | 11.2 |
| Virgin | 5.7 | 5.2 | 5.2 | 3 | 6.1 | 6.6 | 5.4 | 4.9 |
| Boost | 0.6 | 0.7 | 1.5 | 1.9 | 0.1 | 0.2 | 0.4 | 0.3 |
| Amaysim/Vaya | 4.6 | 4.9 | 5.9 | 6.1 | 2 | 2.1 | 12.8 | 12.4 |
| Aldi | 2.2 | 3 | 4.5 | 7.3 | 1.1 | 0.9 | 1.3 | 1.4 |
| TPG/iinet | 3.1 | 2.7 | 1.4 | 0.8 | 2.8 | 1.9 | 9.6 | 9.4 |
| Other MVNOs | 7.5 | 6.4 | 5.4 | 4.5 | 7.9 | 6.8 | 11 | 9 |
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