Cuckoo Broadband Review (Updated October 2026): Current Plans, Hub & Onestream

How Cuckoo Works Today

Cuckoo remains a retail broadband brand rather than a single physical network. Its current sales page says the price and upload speed depend on which network reaches your street, while the May 2026 transfer left existing customers on their underlying network rather than forcing a technical migration.

Onestream Limited now runs Cuckoo behind the scenes. For existing customers, Cuckoo says the transfer itself did not require a new contract, engineer visit or broadband interruption. For new customers, the live buying journey is now centred on 150Mbps, 500Mbps and 900Mbps full fibre plans.

Wi-Fi 6 Mesh Is Now Standard

Cuckoo’s current guide says one Cuckoo Hub comes with every plan. It is a Wi-Fi 6 mesh unit designed for full fibre, and a second compatible Hub can be added to extend coverage while keeping the same network name and password.

The Amazon eero Pro 6E belongs to the earlier Cuckoo offer that we originally tested. Existing customers may still have eero or other supplied hardware, so do not assume the new Cuckoo Hub replaces equipment already on your account.

The Setup

Test context: This section records our earlier Cuckoo service test from before the Onestream transfer and before the current Cuckoo Hub became the standard new-customer router.

I signed up for the Full Fibre 900 package before the May 2026 customer base transfer news. The sign-up process on Cuckoo’s website was one of the easiest I had encountered. There was no pushy selling of TV packages I did not want, just a clean interface asking for my postcode and bank details.

The eero router arrived two days before the activation date. On the day itself, I received a text message at 8am saying the line was active. I plugged the eero into the wall box, also known as the ONT, and within five minutes the light turned solid white. I was online.

The Performance

I live in an area served by CityFibre, so my connection was symmetrical during testing. My speed test results were consistently hitting around 910 Mbps download and 905 Mbps upload. This made cloud backups noticeably quicker.

I had one minor query about my first bill date. I used their online chat function and waited about four minutes to get through to a human, which was reasonable. The agent was helpful and clarified that the first payment is taken three days after activation. That experience compared well with many larger ISPs.

150Mbps, 500Mbps and 900Mbps

Full Fibre 150: Cuckoo positions this for couples and smaller households using streaming, browsing and video calls.

Full Fibre 500: Aimed at busier homes with several people streaming, gaming or working at the same time.

Full Fibre 900: The fastest current headline tier, aimed at larger households and heavy downloading.

Prices and upload speeds are not presented as one national figure. Cuckoo asks for a postcode and says both depend on the network available at the address.

Why The Legal Price Guide Looks Different

Cuckoo’s legal residential price guide is still dated 28 May 2026 and lists standard Supreme Full Fibre and Hyperstream tariffs as well as SoGEA products. That document remains useful for standard charges, add-ons and early-termination calculations, but it does not mirror the simpler 150/500/900 presentation on the current consumer sales page.

Test Results

Our testing over a two-week period showed excellent stability. We experienced zero dropouts during working hours. Latency was consistently low, hovering around 6ms to 8ms, which is excellent for online gaming.

Current Pricing Is Address Specific

Cuckoo’s live sales page now asks for a postcode before showing the monthly price and upload speed. That is the right place to check today’s offer rather than carrying forward old C-series prices or treating the May 2026 standard tariff table as the current promotional menu.

The current sales page advertises £0 setup and one Cuckoo Hub included. The separate legal price guide still lists standard activation and equipment charges that can matter in other situations, including some early-termination calculations, so keep the contract summary and order confirmation.

Cuckoo’s current terms also say service charges can increase on or around 1 April as stated in the contract information, contract summary and price list. Check the exact annual-rise wording shown for your order.

• Cuckoo Hub: One Wi-Fi 6 mesh Hub is included with every current plan. Additional Hubs can extend coverage as a single mesh network.
• One Touch Switch: Cuckoo supports the UK switching process where the new provider normally handles the move from your old broadband service.
• Fixed IP Option: Cuckoo’s current legal price guide lists a Fixed IP Address add-on at £5 per month. Confirm compatibility with your exact package before ordering for hosting or remote-access use.

Original Test vs Current Hardware: Our 8.6/10 score reflects the Cuckoo service we tested with eero hardware. New customers are now shown the Wi-Fi 6 Cuckoo Hub instead.

Price And Upload Speed Vary: Cuckoo does not publish one universal price or upload figure on the main sales page. Those are shown after an address check.

Annual Increases: The current terms allow annual service-charge increases on or around 1 April where specified in your contract documents.

Two Pricing Views: The legal price guide still contains standard Supreme/Hyperstream and SoGEA tariffs, while the live consumer page now presents 150/500/900Mbps full fibre plans. Read the contract summary for the deal you are actually accepting.

Cuckoo Is Now Part Of The Onestream Family

In May 2026, Onestream acquired Cuckoo’s broadband customer base, customer contracts, brand and domain from the APFN/Cuckoo operation. Cuckoo remains active as a customer-facing brand, while its current site identifies the provider as Onestream Limited trading as Cuckoo Broadband.

For customers moved during the transfer, Cuckoo says the underlying network, package and speed did not need to change solely because of the ownership move. Account numbers and billing arrangements could change as accounts were aligned to Onestream systems.

For new customers, the practical position is simpler: Cuckoo now has an active broadband ordering journey again, with the current 150, 500 and 900Mbps full fibre range.