Full fibre reaches 85.3% of homes in Cambourne, though only 21% of connections run at 300 Mbps or faster. Typical measured speed is 123 Mbps down and 41 Mbps up, 22% above the UK download average. 16 providers offer 233 broadband deals, up to 2,300 Mbps.
Deals for Cambourne (CB23), checked and refreshed daily.
Best value broadband deal in Cambourne (CB23)
The best value in Cambourne (CB23) on full first-year cost is 4th Utility's 300Mb Full Fibre (24 Months): £240 across year one, about £20 a month. At 300 Mbps it copes with anything a household runs at once.
Best value in Cambourne (CB23)
£20/mo
for 12 months, then £40/mo
Cheapest broadband deal in Cambourne (CB23)
The cheapest deal in Cambourne (CB23) is Fibre 40 from Onestream at £18.50 a month for 40 Mbps. 4th Utility is essentially level at £20.00 a month. Well below the UK average, which shows on a busy evening.
Cheapest in Cambourne (CB23)
£18.50/mo
rises to £21.25 in April 2027 (+£2.75)
Runner-up on price
£20/mo
for 12 months, then £40/mo
Fastest broadband deal in Cambourne (CB23)
The fastest deal available in Cambourne (CB23) is Home 2300 from toob at 2,300 Mbps. Next fastest is Full Fibre Max CityFibre from Zen Internet at 2,000 Mbps.
Fastest in Cambourne (CB23)
£29/mo
rises to £31 in April 2027 (+£2)
Runner-up on speed
£45/mo
No rises, no surprises.
Compare broadband deals in Cambourne (CB23)
£22.99/mo
rises to £26.99 in March 2027 (+£4)
£27.99/mo
rises to £31.99 in March 2027 (+£4)
£23/mo
No rises, no surprises.
£23/mo
No rises, no surprises.
Broadband providers in Cambourne (CB23)
16 providers serve Cambourne (CB23) including Virgin Media, Sky and BT, with toob the fastest at 2,300 Mbps.
Ranked by Ofcom complaints per 100,000 customers, fewest first. A down arrow is below the industry average, up is above, and a dash means Ofcom publishes no figure for that provider (usually because it is below Ofcom's 1.5% market-share reporting threshold). A small diagonal arrow shows the past-year trend (↘ improving, ↗ getting worse).
Ofcom records the typical Cambourne (CB23) download speed at 123 Mbps.
Upgrade nudge
Room to upgrade in Cambourne (CB23)
Only 21% of the 12,000 connections here are on 300Mbps or faster, even though 85% can get gigabit.
The faster line is already there. For most of these homes it is the contract holding them back, not the infrastructure.
Is your broadband good enough?
The typical Cambourne (CB23) line runs 123 Mbps.
Working from home
GreatStreaming and family use
GoodWhat speeds are people actually getting?
Gigabit reaches 85% of Cambourne (CB23), and the fastest available is 1,000 Mbps. The full split by band is below.
What broadband coverage does Cambourne (CB23) have?
Superfast broadband reaches 94% of Cambourne (CB23) premises but gigabit only 85%, so around 9% of homes can get fast broadband but not the fastest.
Can I rely on mobile broadband in Cambourne (CB23)?
Outdoor 5G reaches 100% of Cambourne (CB23) homes. Here is how mobile holds up if the line drops.
The two 5G figures differ. “5G availability” is everyday 5G running on the existing 4G core, which is what most phones show. “Next-gen 5G” is standalone 5G: a full 5G network with lower lag, still reaching fewer places.
How Cambourne (CB23) compares within South Cambridgeshire
Across 5 postcode districts in South Cambridgeshire, by connection count, typical speed and gigabit coverage.
Nearby areas
Frequently asked questions
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Speed and coverage figures for Cambourne (CB23)come from Ofcom's Connected Nations data, current to January 2026. Deal prices are pulled live from providers. Compiled by the FindBroadband team. See how we rank and source our data.