Does Sky Broadband Use Openreach?
THE NETWORK EXPLAINED
THE SHORT ANSWER
Yes, Sky Broadband does use Openreach. Openreach lists Sky as one of the providers on its network, so if you are asking whether Sky broadband can be delivered over Openreach lines and fibre, the answer is clearly yes.
The important catch is that Sky is not an Openreach-only provider any more. Some of Sky's newer full fibre services are now also available over CityFibre, so the exact network behind a Sky connection can depend on your address and package.
WHY PEOPLE ASK THIS
This question trips people up because Openreach and Sky do different jobs. Sky is the retail provider you buy from. Openreach is one of the networks that may sit underneath the service. If you want the full breakdown, our guide to what the Openreach network is explains that split properly.
That distinction matters because a broadband brand and the physical network behind it are not always the same thing. You can buy from Sky, but the actual line reaching your home may still depend on Openreach or, in some areas now, CityFibre.
WHAT THE CURRENT EVIDENCE SHOWS
The strongest evidence points in the same direction.
- Openreach openly names Sky: Openreach says more than 650 providers use its network, including Sky, and Sky is listed in Openreach's own provider directory.
- Sky is also listed for Openreach Full Fibre: Sky appears on Openreach's FTTP provider page as well, which backs up the idea that Sky genuinely sells services over Openreach infrastructure.
- Sky's own wording adds the missing nuance: Sky says its existing full fibre range is now available on both Openreach and CityFibre networks, while its Gigafast+ products are specifically for homes on the CityFibre network.
So the blunt version is simple. Yes, Sky uses Openreach. The more precise version is that Sky now uses more than one underlying network.
THE FULL FIBRE WRINKLE
For a long time, this would have been a very straightforward article. Sky was effectively an Openreach-based broadband provider for most people. That is still true in plenty of homes today, especially where Sky is being delivered over Openreach's established footprint.
What changed is the newer full fibre expansion. Sky signed a long-term partnership with CityFibre in 2024, and by 2025 Sky had launched CityFibre-based full fibre services, including the Gigafast+ tiers. That means the sentence "Sky Broadband uses Openreach" is still accurate, but the sentence "Sky Broadband only uses Openreach" is now out of date.
That is the key distinction this page needs to get right.
WHAT THIS MEANS FOR YOU
If you are shopping for Sky, the practical question is not really "Does Sky use Openreach?" It is "Which network will Sky use at my address?"
The answer is postcode-dependent. In many places Sky will still be delivered over Openreach. In some newer full fibre areas, the connection may instead sit on CityFibre. If Sky's Gigafast+ products are available at your home, that is a strong clue you are looking at Sky over CityFibre rather than Openreach.
And if you are trying to work out whether the provider is worth the money overall, our Sky Broadband review goes deeper on pricing, support, speeds and the trade-offs.
FREQUENTLY ASKED QUESTIONS
DOES EVERY SKY BROADBAND CUSTOMER USE OPENREACH?
No. A lot of Sky customers still do, but not all of them. Sky now also sells some full fibre services over CityFibre in selected areas.
IS SKY BASICALLY AN OPENREACH PROVIDER?
Yes in one sense, because Sky is a genuine provider on the Openreach network. But no if you mean Openreach-only, because Sky's network footprint now also includes CityFibre for some full fibre packages.
HOW CAN I TELL WHICH NETWORK SKY WILL USE AT MY ADDRESS?
You need to check availability for your postcode. Sky's network footprint now varies by area, and its Gigafast+ packages are specifically tied to CityFibre locations.
THE MOST DEFENSIBLE CONCLUSION
Sky Broadband does use Openreach. That part is clear. The bit people miss is that Sky also now uses CityFibre for some full fibre services, so the exact network behind your connection depends on where you live and which package Sky can sell you.
