Caerphilly

Broadband in Caerphilly

Coverage, speeds and prices for 4,274 postcodes across 15 postcode districts. Real data from Ofcom, Land Registry and Police.uk.

Superfast

97%

Full fibre

0%

Gigabit

82%

Postcodes

4,274

Superfast coverage in Caerphilly runs at 97.4% of postcodes, in step with the UK norm. The district spans 4,274 postcodes over 15 outward codes across the NP and CF ranges.

Browse Caerphilly by postcode district

Caerphilly covers 15 postcode districts with 4,274 postcodes in total. Coverage varies district by district, so pick yours for a full breakdown.

Broadband speeds in Caerphilly

Share of premises by the fastest download speed available, averaged across every Caerphilly postcode.

Gigabit-capable coverage is the number to weigh here. It stands at 81.5% of postcodes, which points to substantial cable network reach but also leaves nearly one in five postcodes without a top-tier option. Superfast tells a steadier story at 97.4%, essentially the national norm, so the everyday baseline is solid almost everywhere. Slow connections are uncommon. Just 0.5% of postcodes fall below 10 Mbps, around one in 200. The gap worth understanding is between the two coverage figures: an address can clear the superfast bar comfortably yet still have no route to gigabit speeds, and with 15 outward codes in the mix that difference will fall unevenly. For most households the deciding factor is what the specific postcode supports rather than the district average.

Under 2 Mbps
<1%
2 to 5 Mbps
<1%
5 to 10 Mbps
<1%
10 to 30 Mbps
2%
30 to 300 Mbps
16%
300 Mbps and above
82%

Source: Ofcom Connected Nations. Percentages are averages of postcode-level availability, so rows may not sum to exactly 100%.

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Caerphilly at a glance

A household that needs dependable video calls and streaming will nearly always be served, given the 97.4% superfast figure. The question mark hangs over heavy users. Roughly 18.5% of postcodes have no gigabit option, so anyone planning very large downloads or sustained high-bandwidth work should look closely at their exact location. The 0.5% below 10 Mbps means outright slow spots are rare.

Remote worker score

54/100

Connectivity and amenities for home working

Family score

50/100

Schools, safety and family amenities

Caerphilly broadband FAQs

What share of Caerphilly lacks gigabit broadband?

Roughly 18.5% of postcodes, close to one in five. The remaining 81.5% can order a gigabit-capable service.

Is Caerphilly's superfast coverage typical for the UK?

Yes. At 97.4% it sits right on the national norm of about 97 per cent.

How many outward codes serve Caerphilly?

15, spanning the NP and CF ranges and 4,274 postcodes in total.

Are below-10 Mbps postcodes common in Caerphilly?

No. They make up 0.5% of the total, about one in 200.

Why do Caerphilly's superfast and gigabit figures differ so much?

They measure different things. Superfast counts a much lower speed threshold, while gigabit needs a network capable of far higher speeds, and nearly one in five postcodes here clears the first bar without the second.

Check your exact postcode

Every postcode in Caerphilly 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