Full fibre reaches 48.4% of homes in Threemilestone, though only 7% of connections run at 300 Mbps or faster. Typical measured speed is 71 Mbps down and 18 Mbps up, 30% below the UK download average. 14 providers offer 178 broadband deals, up to 1,600 Mbps.
Deals for Threemilestone (TR4), checked and refreshed daily.
Best value broadband deal in Threemilestone (TR4)
The best value in Threemilestone (TR4) 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 Threemilestone (TR4)
£20/mo
for 12 months, then £40/mo
Cheapest broadband deal in Threemilestone (TR4)
The cheapest deal in Threemilestone (TR4) 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 Threemilestone (TR4)
£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 Threemilestone (TR4)
The fastest deal available in Threemilestone (TR4) is Full Fibre 1.6GB from EE at 1,600 Mbps. Zen Internet matches it at the same top speed.
Fastest in Threemilestone (TR4)
£38.99/mo
rises to £42.99 in March 2027 (+£4)
Runner-up on speed
£45/mo
No rises, no surprises.
Compare broadband deals in Threemilestone (TR4)
£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 Threemilestone (TR4)
14 providers serve Threemilestone (TR4) including Sky, BT and Vodafone, with EE the fastest at 1,600 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 Threemilestone (TR4) download speed at 71 Mbps.
Upgrade nudge
You could be getting more.
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 Threemilestone (TR4) line runs 71 Mbps.
Working from home
OKStreaming and family use
OKWhat speeds are people actually getting?
Gigabit reaches 48% of Threemilestone (TR4), and the fastest available is 1,000 Mbps. The full split by band is below.
What broadband coverage does Threemilestone (TR4) have?
Superfast broadband reaches 86% of Threemilestone (TR4) premises but gigabit only 48%, so around 38% of homes can get fast broadband but not the fastest.
Can I rely on mobile broadband in Threemilestone (TR4)?
Outdoor 5G reaches 90% of Threemilestone (TR4), but 2% of homes get no indoor 4G from any network, so a mobile backup here wants a window.
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 Threemilestone (TR4) compares within Cornwall
Across 45 postcode districts in Cornwall, by connection count, typical speed and gigabit coverage.
Nearby areas
Frequently asked questions
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Speed and coverage figures for Threemilestone (TR4)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.