How we put this guide together
To put this guide together, we checked coverage against Ofcom Connected Nations data for the London region and all 33 London local authorities (January 2026, as published by the ONS), network and package claims against operators' own websites and announcements, and real-world performance against Opensignal's UK Fixed Broadband Experience report (December 2025). Coverage figures cover all premises, homes and businesses. Availability at an individual address can differ from area averages, so always run a postcode check before ordering.
Broadband coverage in London
London has good gigabit coverage but below-average full fibre. Across the London region, 90.8% of premises can get gigabit-capable broadband, above the UK average of 87.8%. But only 78.4% can get full fibre (FTTP), below the UK average of 81.0%.
Compared with the 26 largest UK cities we track, London as a whole ranks 24th for full fibre and 24th for gigabit coverage. Only Plymouth and Brighton and Hove have lower full fibre coverage, and only Manchester and Brighton and Hove have lower gigabit coverage.
The gap between gigabit and full fibre is mostly Virgin Media's upgraded cable network, which delivers gigabit speeds without a full fibre line. Superfast broadband reaches 98.3% of London premises, above the UK average of 97.7%.
Coverage by London borough
Coverage varies widely between London boroughs. Full fibre ranges from 59.5% of premises in Enfield to 90.0% in Barking and Dagenham, and 16 of the 33 London local authorities are below the UK average of 81.0%.
Source: Ofcom Connected Nations, January 2026, all premises, as published by the ONS. Highest and lowest boroughs for full fibre shown.
Barnet has the lowest gigabit coverage of any London borough at 80.2%. The City of London is the only London authority where superfast broadband falls below 90% of premises, at 88.0%, and Tower Hamlets is next at 95.7%. If you are moving between boroughs, check each address rather than relying on London-wide figures.
Broadband networks in London
London has several independent full fibre networks alongside Openreach and Virgin Media, and many addresses can choose between them.
covers almost every London address with at least FTTC (part fibre). Providers including BT, Sky, Vodafone, TalkTalk, Plusnet, NOW and EE sell over Openreach lines.
runs its own cable network across much of London, with gigabit speeds across most of its footprint. It does not reach every street.
is a London-only full fibre network that has been built to more than 1.3 million homes across the capital. It sells directly to customers.
specialises in apartment buildings and serves boroughs including Islington, Camden, Haringey, Barnet, Hackney, Tower Hamlets, Newham, Waltham Forest, Lambeth, Southwark, Greenwich, Hammersmith and Fulham, Ealing and Brent. Its packages from 150Mbps to 1Gbps have upload speeds equal to download.
has built full fibre in parts of London. In January 2026 it entered administration shortly after being sold to FitzWalter Capital. Its administrators said it would continue to trade as normal, serving existing and new customers, while a buyer is sought.
Altnet coverage is street by street and often building by building, so a postcode check is essential.
What speeds are available in London
Available almost everywhere via Openreach
Available at 91.4% of London premises
Available at 90.8% of London premises
Source: Openreach; Ofcom Connected Nations, January 2026.
What you can order depends on the networks live at your address. Openreach full fibre is sold at up to 1.8Gbps by some providers, and Hyperoptic sells up to 1Gbps with equal upload speeds. Check your postcode to see which speeds are offered at your address.
Opensignal's December 2025 report measured real-world performance in London. Community Fibre led on every measure: average downloads of 208.7Mbps, average uploads of 164.0Mbps, and the best reliability, consistency and video scores of any London provider.
Broadband in London flats and apartments
Flats follow different rules from houses. Full fibre installation in a block depends on a wayleave agreement with the building owner, so two neighbouring buildings can have completely different options, even in a borough with high overall coverage.
Hyperoptic focuses on apartment buildings and serves blocks across 14 London boroughs. If your building has no full fibre, ask your landlord or management company which networks have approached them, and register your building's interest with networks directly. Cable (Virgin Media) or FTTC from Openreach may still be available in the meantime.
Social tariffs in London
If you receive Universal Credit, Pension Credit, Employment and Support Allowance, Jobseeker's Allowance or Income Support, you can usually get a discounted social tariff. Social tariffs cost £12 to £25 a month, with speeds from around 15Mbps up to 1Gbps depending on the provider. There are no exit fees and no mid-contract price rises.
They are available across London wherever the provider's network reaches. Providers do not advertise them heavily, so ask directly or check Ofcom's list of social tariffs.
Providers you can compare in London
In London you can compare deals from Sky, BT, Vodafone, TalkTalk, Plusnet, NOW, EE and Virgin Media, plus London full fibre providers Community Fibre, Hyperoptic and G.Network where their networks are live. The providers shown for your address depend on which networks serve it.
Start with a postcode check to see address-level options, then read how we compare to understand how deals are ranked.
Phil Brown · Founder, Broadband Scout
Phil previously worked in UK telecoms retail at Three UK and has spent over a decade running consumer comparison platforms. He reviews each guide against provider terms and Ofcom guidance.
More about PhilEditorial policy: This guide is produced by the Broadband Scout editorial team to help London households compare broadband availability and deals. Network coverage, provider availability and pricing are checked regularly and updated to reflect current offers. Always confirm availability and current terms with the provider before signing up.