Full fibre reaches 81.5% of homes in Castle, though only 1% of connections run at 300 Mbps or faster. Typical measured speed is 56 Mbps down and 14 Mbps up, 45% below the UK download average. 16 providers offer 206 broadband deals, up to 2,000 Mbps.
Deals for Castle (YO11), checked and refreshed daily.
Best value broadband deal in Castle (YO11)
The best value in Castle (YO11) 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 Castle (YO11)
£20/mo
for 12 months, then £40/mo
Cheapest broadband deal in Castle (YO11)
The cheapest deal in Castle (YO11) 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 Castle (YO11)
£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 Castle (YO11)
The fastest deal available in Castle (YO11) is Gig2 Fibre broadband + Netflix from Virgin Media O2 at 2,000 Mbps. Next fastest is Full Fibre 1.6GB from EE at 1,600 Mbps.
Fastest in Castle (YO11)
£51.99/mo
rises to £55.99 in April 2027 (+£4)
Runner-up on speed
£38.99/mo
rises to £42.99 in March 2027 (+£4)
Compare broadband deals in Castle (YO11)
£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 Castle (YO11)
16 providers serve Castle (YO11) including Sky, BT and Vodafone, with Virgin Media O2 the fastest at 2,000 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 Castle (YO11) download speed at 56 Mbps.
Upgrade nudge
Room to upgrade in Castle (YO11)
Only 1% of the 7,600 connections here are on 300Mbps or faster, even though 82% 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 Castle (YO11) line runs 56 Mbps.
Working from home
OKStreaming and family use
OKWhat speeds are people actually getting?
Gigabit reaches 82% of Castle (YO11), and the fastest available is 1,000 Mbps. The full split by band is below.
What broadband coverage does Castle (YO11) have?
Superfast broadband reaches 98% of Castle (YO11) premises but gigabit only 82%, so around 16% of homes can get fast broadband but not the fastest.
Can I rely on mobile broadband in Castle (YO11)?
Outdoor 5G reaches 96% of Castle (YO11) 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 Castle (YO11) compares within North Yorkshire
Across 29 postcode districts in North Yorkshire, by connection count, typical speed and gigabit coverage.
Nearby areas
Frequently asked questions
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Speed and coverage figures for Castle (YO11)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.