CF48 broadband and area guide
Ofcom coverage, connection speeds, house prices and local data for 748 postcodes across 4 sectors in Merthyr Tydfil.
Full fibre
0%
Gigabit
71%
Superfast
96%
Postcodes
748
CF48 is a large Caerphilly postcode spanning 748 premises with gigabit available across most but not quite three-quarters, and a notable tail of slow postcodes.
Broadband speeds in CF48
Share of CF48 premises by the fastest download speed available, averaged across all 748 postcodes in the district.
70.9% reach gigabit, 96.2% are superfast-capable, but 1.5% fall below 10 Mbps. Wireless infrastructure is negligible (1%). The 25.3% occupying 30-300 Mbps represents the gap between superfast ubiquity and gigabit majority. The 1.5% below 10 Mbps rate is among the highest in this batch, indicating digital exclusion in a minority of addresses. CF48's profile mirrors other large Caerphilly postcodes in showing strong gigabit penetration but uneven deployment. The 1.5% below-USO contingent deserves attention, representing around eleven postcodes where speeds fall short of minimum thresholds.
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
1%
Premises that can use a fixed wireless access service
Broadband by sector
CF48 splits into 4 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 |
|---|---|---|---|---|
| CF48 1 | 228 | 97% | 0% | 73% |
| CF48 2 | 173 | 92% | 0% | 76% |
| CF48 3 | 115 | 99% | 0% | 90% |
| CF48 4 | 232 | 96% | 0% | 55% |
All CF48 1 postcodes (228)
All CF48 2 postcodes (173)
All CF48 3 postcodes (115)
All CF48 4 postcodes (232)
Best deals
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Living in Merthyr Tydfil
CF48 is mostly well-served. Superfast is near-universal. However, the 1.5% below-USO postcodes deserve targeted intervention.
Remote worker score
54/100
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
CF48 broadband FAQs
What percentage of CF48 reaches gigabit?
70.9% of the 748 postcodes, with wireless infrastructure contributing only 1%.
How many CF48 postcodes are below the universal service obligation?
1.5% fall below 10 Mbps, the second-highest rate shown.
What's the superfast floor in CF48?
96.2%, meaning only 3.8% of premises lack reliable superfast access.
Is investment needed in CF48?
The 1.5% below-USO contingent could benefit from targeted broadband support to meet universal service obligations.
Neighbouring districts
Check your exact postcode
Every postcode in CF48 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