NP12 broadband and area guide
Ofcom coverage, connection speeds, house prices and local data for 896 postcodes across 5 sectors in Caerphilly.
Full fibre
0%
Gigabit
86%
Superfast
97%
Postcodes
896
NP12 around Caerphilly matches NP10 in scale and structure: 86.4% gigabit availability, with 24.5% fixed wireless coverage and zero fibre deployment.
Broadband speeds in NP12
Share of NP12 premises by the fastest download speed available, averaged across all 896 postcodes in the district.
Gigabit reaches 86.4% of postcodes via cable and fixed wireless technology networks. Fixed wireless technology serves 24.5% of postcodes, a significant band for areas where cable infrastructure hasn't fully penetrated. Superfast is essentially universal at 97.2%. 86.4% of postcodes achieve 300+ Mbps speeds, and 0.9% fall below 10 Mbps. Like NP10, fibre coverage is absent, indicating that Caerphilly's NP12 depends entirely on cable and wireless technology infrastructure for gigabit services. Speed data from Ookla is unavailable, so real-world performance requires postcode-specific checking with providers. The dual-technology approach mirrors network strategy across South Wales coalfield areas.
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
25%
Premises that can use a fixed wireless access service
Broadband by sector
NP12 splits into 5 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 |
|---|---|---|---|---|
| NP12 0 | 240 | 95% | 0% | 77% |
| NP12 1 | 203 | 100% | 0% | 90% |
| NP12 2 | 258 | 96% | 0% | 89% |
| NP12 3 | 191 | 100% | 0% | 91% |
| NP12 4 | 4 | 75% | TBC | 46% |
All NP12 0 postcodes (240)
All NP12 1 postcodes (203)
All NP12 2 postcodes (258)
All NP12 3 postcodes (191)
Best deals
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Living in Caerphilly
House price data is absent for NP12. The broadband strategy mirrors NP10: cable-primary with fixed wireless filling service gaps in areas where fibre investment hasn't reached.
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
NP12 broadband FAQs
Why is fixed wireless so prevalent in NP12?
24.5% of postcodes rely on fixed wireless to reach gigabit capacity. This is typical in areas where cable hasn't rolled out completely and fibre investment is absent.
Is NP12 well connected overall?
Yes. 86.4% gigabit coverage and 97.2% superfast availability show solid infrastructure, though reliance on cable and wireless rather than fibre.
How many homes are stuck with slow broadband?
Only 0.9% fall below 10 Mbps. The district is largely well served.
Should I choose cable or fixed wireless in NP12?
If both are available, cable typically offers more stable latency for gaming or video calls. Check which providers serve your specific postcode.
Neighbouring districts
Check your exact postcode
Every postcode in NP12 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