CF40 broadband and area guide
Ofcom coverage, connection speeds, house prices and local data for 468 postcodes across 2 sectors in Rhondda Cynon Taf.
Full fibre
0%
Gigabit
90%
Superfast
99%
Postcodes
468
CF40 is a 468-postcode area in Rhondda Cynon Taf where gigabit is nearly ubiquitous and wired networks dominate the ultrafast market.
Broadband speeds in CF40
Share of CF40 premises by the fastest download speed available, averaged across all 468 postcodes in the district.
98.9% reach superfast, 89.9% support gigabit. Critically, no wireless infrastructure is recorded across CF40. All ultrafast capacity comes from wired networks. The remaining 9% are split between superfast-only (9%) and below 10 Mbps (0.4%). The absence of wireless backhaul suggests strong fixed-line infrastructure built out across the area. This postcode demonstrates how wired investment creates consistent, weather-independent connectivity. Where postcodes like CF37 and CF38 split their gigabit access across wireless and wired systems, CF40 commits entirely to cable and fibre. This structural choice typically yields better performance stability and higher real-world speeds than mixed wireless or wired approaches.
Source: Ofcom Connected Nations. Percentages are district-wide averages of postcode-level availability, so rows may not sum to exactly 100%.
Connectivity in detail
Below 10 Mbps USO
<1%
Premises unable to get the 10 Mbps universal service minimum
Fixed wireless
0%
Premises that can use a fixed wireless access service
Broadband by sector
CF40 splits into 2 postcode sectors. Coverage and prices can differ street by street, so open a sector below to find your exact postcode.
| Sector | Postcodes | Superfast | Full fibre | Gigabit |
|---|---|---|---|---|
| CF40 1 | 222 | 98% | 0% | 86% |
| CF40 2 | 246 | 100% | 0% | 93% |
All CF40 1 postcodes (222)
All CF40 2 postcodes (246)
Best deals
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Living in Rhondda Cynon Taf
Premises in CF40 can expect reliable, consistent gigabit availability underpinned by wired networks. This is among Wales' strongest connectivity profiles.
Remote worker score
55/100
Connectivity and amenities for home working
Family score
50/100
Schools, safety and family amenities
Value score
50/100
What you get for the local price level
CF40 broadband FAQs
Is CF40's gigabit delivered entirely via wired networks?
Yes. 0% of postcodes use wireless infrastructure; all 89.9% gigabit capacity comes from cable or fibre.
What's the lowest speed tier in CF40?
Only 0.4% of postcodes fall below 10 Mbps; 0% miss the universal service obligation entirely.
How many postcodes are superfast-capable?
98.9% of the 468 postcodes, essentially the whole area.
Why does CF40 differ from nearby postcodes?
CF40 relies entirely on wired gigabit infrastructure, whereas some nearby postcodes depend on wireless links for ultrafast capacity.
Neighbouring districts
Check your exact postcode
Every postcode in CF40 has its own page with broadband speeds, house prices, school ratings and crime stats. You can also compare providers for your address.
Data sources: Broadband data from Ofcom Connected Nations 2025 · House prices from HM Land Registry · Crime from Police.uk · See all data sources