CF5 broadband and area guide
Ofcom coverage, connection speeds, house prices and local data for 1,424 postcodes across 6 sectors in Cardiff.
Full fibre
0%
Gigabit
93%
Superfast
99%
Postcodes
1,424
CF5 is Cardiff's largest district by postcodes (1,424), a dense urban area where gigabit is nearly ubiquitous and digital exclusion is virtually nonexistent.
Broadband speeds in CF5
Share of CF5 premises by the fastest download speed available, averaged across all 1,424 postcodes in the district.
93.4% reach gigabit, 99% are superfast-capable. Wireless infrastructure accounts for 35.9% of gigabit delivery, reflecting Cardiff's use of point-to-point wireless to complement wired cable and fibre. Only 0.2% fall below 10 Mbps and zero miss the universal service obligation. The 5.6% in the 30-300 Mbps bracket reflects isolated postcodes bypassed by full gigabit infrastructure rather than a cohesive tier. CF5's structure indicates mature, multi-technology network deployment. Urban areas allow wireless infrastructure deployment to reach rooftops and infill sites efficiently. The combination of 93.4% gigabit and 99% superfast across 1,424 postcodes demonstrates how density and multiple providers can achieve near-universal high-speed coverage.
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
0%
Premises unable to get the 10 Mbps universal service minimum
Fixed wireless
36%
Premises that can use a fixed wireless access service
Broadband by sector
CF5 splits into 6 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 |
|---|---|---|---|---|
| CF5 1 | 242 | 100% | 0% | 98% |
| CF5 2 | 238 | 100% | 0% | 91% |
| CF5 3 | 246 | 100% | 0% | 99% |
| CF5 4 | 272 | 100% | 0% | 99% |
| CF5 5 | 227 | 100% | 0% | 91% |
| CF5 6 | 199 | 94% | 0% | 73% |
All CF5 1 postcodes (242)
All CF5 2 postcodes (238)
All CF5 3 postcodes (246)
All CF5 4 postcodes (272)
All CF5 5 postcodes (227)
All CF5 6 postcodes (199)
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Living in Cardiff
Cardiff residents expect and typically receive gigabit or near-gigabit speeds. The scale and urban density mean diverse network topologies; wireless infrastructure filling gaps is practical infrastructure strategy.
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
CF5 broadband FAQs
How much of CF5's gigabit depends on wireless infrastructure?
35.9%, reflecting Cardiff's dense urban use of wireless backhaul to reach rooftops and infill areas.
Is digital exclusion a concern in CF5?
No. 0.2% fall below 10 Mbps; 0% miss the universal service obligation.
Why is CF5 so much larger than other postcodes?
At 1,424 postcodes, CF5 is Cardiff's primary district, encompassing dense urban areas across multiple neighbourhoods.
Can I assume gigabit in CF5?
93.4% support gigabit, though about one-third relies on wireless infrastructure, so site specifics and weather matter.
Neighbouring districts
Check your exact postcode
Every postcode in CF5 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