About Castnet
The Garden Route’s hometown internet company. Serving Knysna, Plettenberg Bay, Sedgefield, and George since 2013.
Our Story
Castnet was founded in 2013 with a simple idea: the Garden Route deserves internet as good as anywhere in South Africa. No call centres in Johannesburg. No waiting on hold for hours. Just fast, reliable connectivity backed by a local team who actually cares.
Over the past decade, we have grown from a small wireless ISP to a full-service connectivity provider — offering fibre, wireless, and business solutions across the Garden Route. But our core promise has never changed: local service, honest pricing, and internet that just works.
What Makes Us Different
🏠 We Are Local
Our office is in Knysna. Our support team lives in the Garden Route. We understand the unique connectivity challenges of our region because we face them too.
⚡ We Are Independent
We are not owned by a big national ISP. We make decisions locally and focus entirely on serving the Garden Route — not shareholders.
🤝 We Keep It Simple
No contracts. No hidden fees. No confusing fine print. Just honest internet from honest people. Month-to-month, cancel anytime.
🔒 We Are Certified
ISPA member, BBBEE certified, and compliant with all South African telecommunications regulations. We take our responsibilities seriously.
Our Service Area
Castnet provides fibre and wireless internet across the Garden Route region of South Africa’s Western Cape. We partner with all major Fibre Network Operators — including Openserve, Vumatel, Frogfoot, and Octotel — to bring you the best possible coverage.
Want to Join the Castnet Family?
Check coverage at your address or get in touch — we would love to connect you.