CityFibre overview
CityFibre is a full fibre broadband network available in large parts of the UK, especially focused on urban and suburban areas of England and Scotland.
They are a relatively new broadband altnet – meaning the network was built as an alternative to larger incumbent providers such as Openreach (BT) and Virgin Media.
Which providers use the CityFibre network?
The two largest CityFibre providers are currently Vodafone and Sky Broadband.
Both of these companies have historically just used Openreach – BT’s broadband network – to service their customers. However, they have both now partnered with CityFibre to offer access in areas with CityFibre service.
TalkTalk also offers CityFibre service through their wholesale network in some areas, and a number of other smaller providers also offer access, including 4th Utility, Brawband, Exascale, IDNet, Rise Fibre, and Utility Warehouse.
Who owns the CityFibre network?
CityFibre is owned by a number of private equity firms, including Goldman Sachs, Interogo Holdings (based in Switzerland), and Newlight Partners (based in New York).
The company is not owned by a broadband provider in the same way that Openreach is owned by BT, or how Virgin Media owns and operates its own broadband network. Instead, broadband providers lease network access from CityFibre.
What speeds can you get on the CityFibre network?
CityFibre offers ultrafast symmetrical speeds of up to 2.2 Gbps with most providers that use their network.
However, some ISPs, such as Sky, offer a symmetric 5 gigabit plan in areas with CityFibre service, which is extremely fast – this is one of the fastest consumer broadband plans available in the UK at the moment.
There are also 150, 500, and 900 Mbps tariffs available from most CityFibre broadband providers in return for a lower monthly cost. Each of these plans also comes with symmetrical download and upload speeds.
Is CityFibre any good?
There is a lot to like about the CityFibre Broadband network:
- They offer extremely fast maximum speeds, with symmetrical downloads and uploads.
- They have a really good range of providers using their network, giving you a lot of ISPs to choose from when buying.
- Since Sky supplies CityFibre access, you can get their service bundled with a pay TV plan if you want, which not many altnets offer. Most other similar broadband networks are only provided by smaller providers that don’t offer many add-ons such as pay TV.
- Most CityFibre plans have low monthly costs, except for the very fastest plans.
The only real downside to CityFibre is their lack of availability. It’s only relatively small patches of the country that can get their service at the moment.
However, if you can get a CityFibre broadband plan at your address, which you can check using the postcode checker at the top of this page, they tend to be a really good broadband network to use.


