Australia Mobile Services Market: Telstra, Optus, and TPG Drive 5G Growth and Rising Data Revenue

Why It Matters

The accelerating 5G rollout and rising data consumption will lift ARPU and reshape competitive dynamics, making heavy network investment essential for market leadership.

Key Takeaways

• Telstra holds ~40% market share, 20.7M subscribers.
• Telstra investing A$800M over four years for 5G.
• Optus plans 1,500 new 5G sites by 2028.
• TPG uses Optus sharing to boost regional coverage.
• Mobile data revenue to grow 5.2% CAGR to 2030.

Pulse Analysis

Australia’s mobile landscape is entering a pivotal growth phase as the three incumbents double down on 5G infrastructure. Telstra’s A$800 million spend focuses on urban densification, AI‑driven automation, and satellite‑to‑phone messaging, reinforcing its premium positioning. Optus counters with an aggressive rollout of 1,500 new 5G sites by 2028, emphasizing regional reach and leveraging its amaysim MVNO to capture value‑price customers. Meanwhile, TPG’s cost‑efficient model, bolstered by a network‑sharing pact with Optus, allows it to extend coverage without the capital intensity of its rivals.

The shift from voice to data is reshaping revenue streams. GlobalData projects mobile data revenue to expand at a 5.2% compound annual growth rate, eclipsing the 2.1% decline in voice earnings. Average monthly data consumption is set to rise from 16.4 GB in 2025 to 27.4 GB by 2030, driven by video streaming, social media, and cloud‑based applications. This surge fuels higher ARPU, especially for operators offering premium data bundles and enterprise‑grade connectivity, while pressuring legacy voice‑centric pricing structures.

Looking ahead to 2030, operators that combine expansive 5G coverage with differentiated digital services will capture the most value. Investment in network capacity, edge computing, and AI‑enabled optimization will be critical to sustain ARPU growth and meet escalating consumer demand. Partnerships—such as Optus’s alliance with Nokia and TPG’s sharing agreement—provide a pathway to broaden reach while managing costs. Companies that fail to modernize risk eroding market share as data‑hungry users gravitate toward providers delivering faster, more reliable 5G experiences.