South African fibre in 2026: the numbers that matter to buyers
Fibre keeps growing fast, but the headline subscriber count hides the story that matters when you are buying. Here is what the 2026 data says about coverage, the connection gap, and what to insist on for a business line.
Is fibre internet still growing in South Africa?
Yes. FTTH and FTTB subscriptions grew 22% to 3.01 million by early 2026, and fixed broadband as a whole passed 3.26 million lines. But only about 17% of households have fixed home internet, so this is not a saturated market. It is a fast-growing one with plenty of headroom left.
The growth is real, but access is uneven
The subscriber numbers are genuinely strong. The penetration numbers are the reminder that fibre is still a minority connection in most of the country.
By the March 2026 ICASA figures, fibre-to-the-home and fibre-to-the-business subscriptions climbed 22% to 3.01 million, and fixed broadband overall rose 19.3% to 3.26 million lines. That is a market adding roughly half a million fibre connections a year.
Set against households, though, the picture changes. Fixed internet at home reaches only 17.4% of South African households, even as total internet access from any location (mostly mobile) sits above 82%. Fibre is winning, but off a low base, and mostly in metros and established suburbs.
The sharpest gap is between homes passed and homes connected. A network operator can run fibre down your street and count you as covered, but that only becomes a live service when someone signs up. On Openserve’s own footprint, over 1.5 million homes are passed but the connectivity rate is about 52%, meaning roughly half of passed homes actually take a service.
Passed is not the same as connected
What is driving the 2026 fibre market
Two forces shape what you can buy: the open-access model that put many retail ISPs on one network, and the growing split between home fibre and business fibre.
Most South African fibre now runs on an open-access model. A fibre network operator builds and owns the infrastructure and passes homes; retail internet providers then compete to sell you a service over it. That competition is why entry-level home prices keep falling and why the same line can be bought from several providers. Consolidation adds scale: the largest FTTH footprints now pass millions of homes, with one operator alone past 2.8 million.
For a business, the more useful distinction is the product tier. Home fibre is optimised for price and download speed and shares capacity between many users. Business fibre costs more but buys you the things a company actually needs: a service-level agreement, symmetrical upload, and priority support.
| What you get | Business fibre | Home fibre |
|---|---|---|
| Uptime guarantee | Backed by an SLA | Best-effort |
| Upload speed | Symmetrical (up = down) | Often much slower upload |
| Contention | Low or dedicated | Shared with many users |
| Fault response | Priority, defined hours | Standard queue |
| Price | Higher | Lower |
South Africa does not have a fibre shortage. It has a connection gap.
WhichVoIP editorial view
What the trends mean if you are buying business fibre
The market data is encouraging, but it does not choose a line for you. Use these five checks to turn the trend into a good decision.
Our verdict
South African fibre is growing quickly and getting cheaper, but coverage maps overstate what you can actually get, and home packages are built for a different job than a business needs. The trend that helps you most is competition on open-access networks; the risk that hurts you most is buying a consumer line for a business.
Comparing business fibre options?
See which fibre providers can reach your address and compare business-grade lines on the things that matter: uptime, upload and support.
Frequently asked questions
Is fibre internet still growing in South Africa?
How many South African households have fibre?
What is the difference between homes passed and homes connected?
Is business fibre different from home fibre?
Why is my area passed by fibre but I still cannot get it?
Should I choose fibre based on the advertised speed?
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Sources: ICASA State of the ICT Sector Report (31 March 2026); Statistics South Africa General Household Survey 2024; Openserve and Maziv operator disclosures; Ookla Speedtest Global Index. Verified 05 July 2026.