Vox’s commanding performance in South Africa’s latest fixed broadband benchmarking exercise signals a significant shift in how the country’s internet service landscape is shaping up, with specialist providers now outpacing the major mobile operators on home connectivity. The findings from Opensignal’s first quarter 2026 survey paint a picture of a market where dedicated broadband players are pulling ahead on reliability, upload speeds, and video experience — metrics that matter enormously to households balancing remote work, cloud services, and streaming demands.
In what represents a striking endorsement of the specialist model, Vox swept every fixed broadband award measured by Opensignal, competing against household names like Vodacom, Telkom, MTN, Rain, and Herotel. The benchmarking exercise evaluated performance across both fibre and fixed wireless access connections, measuring everything from raw download speeds to the real-world ability to maintain stable connections across multiple devices simultaneously. For consumers tired of inconsistent performance from their home internet providers, this data offers some clarity about which operators are genuinely delivering.
The report assessed six operators across a range of performance indicators, though it’s worth noting that South Africa’s internet service provider landscape includes more than 200 companies. Opensignal’s decision to focus on these particular players reflects their significance as “familiar retail brands with a mix of national presence and significant market share,” according to Mohamed Abbas, the principal analyst who oversaw the research. The methodology itself relies on crowd-sourced data gathered from real-world usage by anonymous participants, giving the findings a grounded, practical quality that advertised speeds simply cannot replicate.
How Specialist Providers Are Outperforming Mobile Operators on Fixed Broadband
The performance gaps between the specialists and the mobile operators tell a revealing story about the fundamental differences in how these two business models approach home connectivity. Vox’s upload speed of 17.5Mbit/s dwarfed Vodacom’s 11.1Mbit/s, a distinction that matters profoundly for households with creators, remote workers using cloud-based applications, or families managing multiple video calls. Rain, despite finishing second on several metrics, managed only 7.8Mbit/s upload speed, whilst MTN lagged at 7.7Mbit/s.
But perhaps the most telling metric is reliability experience, where Opensignal measures whether a household can genuinely stay connected across multiple devices and tasks without dropping connections or experiencing slowdowns. Vox scored 363 on a scale of 100 to 1,000, followed by Rain at 332 and Herotel at 330. The mobile operators clustered well behind: Vodacom at 246, MTN at 228, and Telkom at 220. That 80-plus point gap represents the difference between a network that keeps your video conference running whilst your partner streams content and your kids download homework materials, and one that starts buckling under simultaneous demand.
On download speeds, Vox’s lead was narrower than observers might expect. The company achieved 24.9Mbit/s, just ahead of Rain’s 23.9Mbit/s, but these figures deserve context. Many households are now on 100Mbit/s or faster packages through providers like Frogfoot and Vumatel, suggesting Opensignal’s sample may be weighted towards lower-tier subscriptions or measuring application throughput rather than raw line capacity. Video experience — where YouTube streaming quality matters — saw Vox claim 66.1 points, a commanding lead that reflects advantages we’ll explore shortly.
Telkom’s performance represents perhaps the most puzzling takeaway from the research. The operator reported a 52.4% connectivity rate on Openserve’s network of more than 1.5 million homes passed, with 786,490 homes connected as of the third quarter of its 2026 financial year. The company’s also been recording solid fibre subscriber growth and revenue expansion, yet its 16.2Mbit/s download speed and 220 reliability score placed it dead last in multiple categories. That disconnect between wholesale network footprint and retail customer experience is awkward territory for an operator that’s been investing heavily in fibre infrastructure.
Vox’s structural advantages provide insight into why the company has pulled so far ahead. As a sister company to Frogfoot — one of South Africa’s largest open-access fibre network operators — Vox enjoys rare alignment between the network layer and the retail internet service provider layer. Most competitors like Rain, Herotel, and smaller ISPs must resell capacity on networks operated by Vumatel, Openserve, or Octotel, which creates inherent compromises in service quality and prioritisation.
That advantage deepened in February when Vox gained accreditation as a Google peering provider, a designation that strengthens direct interconnection with Google services. For consumers, this means YouTube and other Google platforms should load faster and maintain better quality — which is precisely where Vox’s 66.1 video experience score reflects real-world benefit. Peering relationships are foundational to internet performance, and Vox’s positioning gives it structural leverage that most competitors simply cannot match.
The market context behind these rankings reflects an industry experiencing genuine momentum. South Africa’s fixed broadband subscriptions grew 19.3% year on year to 3.26 million in 2025, with fibre-to-the-home and fibre-to-the-building subscriptions climbing 22% to 3.01 million. Fixed wireless access — the technology delivering Rain’s strong performance — expanded 39% to 1.26 million subscriptions. These numbers demonstrate that South Africans are increasingly choosing dedicated home internet over mobile data, though it’s worth noting that Statistics South Africa’s General Household Survey for 2024 found only 17.4% of households with home internet access, a reminder that subscriber growth is still racing ahead of actual national penetration rates.
An interesting wrinkle in Vodacom’s position involves its effective 30% stake in Maziv, which took effect on 1 December 2025. Through that investment, Vodacom now has indirect exposure to Herotel, which Vumatel acquired last year. The irony is stark: whilst Vodacom’s own retail fixed broadband brand finishes in the bottom half of Opensignal’s rankings, the company is now a shareholder in one of the top three reliability performers. That ownership structure reflects how South Africa’s telecom giants are attempting to hedge their fixed broadband bets through portfolio investments rather than operational excellence in their own retail offerings.
MTN’s position is notably different from its larger competitors. Without a major stake in a dedicated fibre operator, MTN finished last or second-last on four of the five measured metrics. The company’s converged home business grew an impressive 30% year on year to 344,000 subscribers by the third quarter of 2025, but Opensignal’s data suggests that growth hasn’t yet translated into performance advantages. For a company that competes primarily through mobile heritage and network footprint, that’s a sobering reality in an increasingly fibre-dependent market.
As South Africa’s fixed broadband market accelerates, the Opensignal rankings reveal a competitive landscape where specialisation and infrastructure alignment are triumphing over mobile operator scale. Vox’s dominance isn’t coincidental — it reflects structural advantages in peering, network ownership, and operational focus that most competitors simply haven’t built. For consumers, that competition is welcome: it means the pressure on every player, from Telkom to MTN, to genuinely improve their home connectivity experience just got considerably more intense.