Openreach vs CityFibre: What Is the Difference?
NETWORK COVERAGE • SPEEDS • PROVIDERS • INSTALLATION • CUSTOMER SUPPORT
Openreach and CityFibre are separate broadband networks. They do not normally sell your broadband directly; internet providers use their networks to deliver services to your home.
The important question is not which name sounds better. It is which network is available at your address and which provider offers the best combination of price, speed, contract terms and support.
The short answer
Openreach is BT Group’s access-network division and operates a large wholesale network used by many broadband providers. Its full-fibre rollout is planned to reach 25 million homes and businesses by the end of 2026.
CityFibre is an independent wholesale full-fibre network operator. It says its network passes more than 4.5 million premises and has a longer-term rollout target of up to 8 million homes.
Both can deliver full-fibre broadband, but the providers, packages and speeds available can differ by address.
Openreach vs CityFibre: key differences
| Feature | Openreach | CityFibre |
|---|---|---|
| Business model | Wholesale access network operated by Openreach, part of BT Group. | Independent wholesale full-fibre network operator. |
| Technology | Full Fibre (FTTP) in upgraded areas, plus older part-fibre and copper services where full fibre is not yet available. | Fibre-only access network in its full-fibre footprint. |
| Provider choice | Many retail providers use the network; availability varies by address. | Multiple retail providers use the network; the exact list varies by location. |
| Coverage | Over 20 million premises have access to Openreach Full Fibre, with a 25-million target by the end of 2026. | More than 4.5 million premises passed, with a rollout target of up to 8 million homes. |
| Speeds | Package speeds depend on the provider and product; Openreach advertises Full Fibre products up to 1,600Mbps. | Package speeds depend on the provider; CityFibre says its network supports symmetrical speeds up to 8.5Gbps. |
| Faults and billing | Your broadband provider remains your main contact for billing, installation and faults. | |
How to check which network you can get
Network coverage is address-specific. Two homes on the same street can receive different results because rollout boundaries, property records and installation readiness can vary.
Check Ofcom
Enter your address in Ofcom’s broadband availability checker to see the networks and technologies reported for your property.
Check the provider
Run your address through the provider’s own checker. This confirms the actual package, speed, price and installation options available to order.
Compare the contract
Check total cost, contract length, annual price changes, upload speed, router, activation date and cancellation terms.
Do not rely on the network name alone: a cheaper package on one network may suit you better than a faster package on the other.
Which broadband providers use each network?
Provider availability changes by location. Openreach publishes a list of service providers on its network, while CityFibre makes its network available through retail partners. The same provider may use different networks in different areas, so always check your address.
Wide provider availability
Openreach’s network is used by a broad range of providers, including national and independent brands. Your local choice depends on the products sold at your address.
Independent network partners
CityFibre also works with multiple retail providers. In some locations this can create strong competition between providers using the same fibre network.
Are speeds and reliability different?
The network operator is only one part of your experience. Your retail package, router, Wi-Fi conditions, home wiring, device and network capacity all affect the result.
Useful for browsing, streaming and downloading files. Compare the average or advertised speed for the exact package.
Important for video calls, cloud backups, live streaming and sending large files. Full fibre may offer stronger upload performance than part-fibre services.
Low delay and good Wi-Fi depend on the provider’s equipment, your router location and how your home network is configured.
Full fibre is not the same as perfect Wi-Fi: a fast fibre line can still feel slow if your wireless signal, router or device is the bottleneck.
What happens when you order?
Order from a provider
You select a retail broadband package after checking your address and contract terms.
Network work
If needed, the network operator or its engineering partners install or activate the physical connection.
Router activation
Your provider supplies the router and manages activation, account support and any service issues.
Installation times vary by property and whether the network is already ready for service. Ask the provider for the confirmed appointment and what happens if the date changes.
Which one should you choose?
Prioritise the deal available now
- ✓Check the actual monthly cost and any planned price changes.
- ✓Compare download and upload speeds, not download speed alone.
- ✓Check the minimum term, activation date and exit terms.
Compare the provider behind the network
- ✓Check who sends your bill and handles faults.
- ✓Look at router and whole-home Wi-Fi options.
- ✓Read the provider’s service terms and complaints process.
Openreach and CityFibre can both provide a strong full-fibre connection. For most households, the best decision is the available package with the right speed, price, contract and customer support.
Frequently asked questions
Is Openreach better than CityFibre?
Neither network is automatically better. The best choice depends on the packages, price, upload speed, installation date and service available at your address.
Can I choose Openreach or CityFibre directly?
Usually no. Openreach and CityFibre operate wholesale networks. You normally choose a broadband provider, and that provider uses whichever network is available at your address.
Will my broadband provider change if I move between networks?
Usually yes, because providers may sell service on only one network in a particular area. Check the new provider’s terms and switching process before ordering.
Who do I contact if there is a fault?
Contact the company that sends your broadband bill. That is your retail provider, which manages your account and raises network faults where necessary.
How can I check which network is available?
Use Ofcom’s broadband checker, then confirm the result on the provider’s own address checker before ordering. Availability can differ between neighbouring properties.
Sources and further information
- Openreach broadband network — network technology and rollout information.
- Openreach Full Fibre rollout — coverage plans and the 25-million-premises target.
- CityFibre rollout — network footprint, wholesale model and rollout target.
- CityFibre network update — latest connection milestone.
- Ofcom broadband availability checker — check networks and services reported at your address.