Ofcom data · 895 postcodes

NP12 broadband coverage — Caerphilly

Full-fibre, gigabit and superfast broadband availability across the NP12 postcode district, plus business broadband and leased-line options for Caerphilly.

Strong coverage

Superfast (30Mb+)

96.5%

Ultrafast (300Mb+)

75.3%

Gigabit-capable

75.3%

Below USO (10Mb)

Check broadband at your exact NP12 postcode

District figures are an average — get the precise availability, full-fibre status and mobile signal for your address.

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Broadband in NP12

Broadband availability in the NP12 postcode district (Caerphilly) is Strong — superfast is near-universal and gigabit is rolling out. Across the 895 postcodes Ofcom measures in NP12, superfast broadband (30 Mbit/s or faster) reaches 96.5% of premises and gigabit-capable lines are available to 75.3%.

Around 0% of premises in NP12 fall below the Universal Service Obligation (a minimum of 10 Mbit/s download and 1 Mbit/s upload), so the overwhelming majority of homes and businesses here can already order a decent fixed line. For a business that depends on its connection, the figures that matter most are gigabit and full-fibre availability — the symmetric, low-contention services we quote leased lines and FTTP against.

Sample postcodes in NP12

Postcode	Superfast	Gigabit
NP12 0AA	100%	100%
NP12 0AB	100%	100%
NP12 0AD	100%	100%
NP12 0AE	100%	100%
NP12 0AG	90%	90%
NP12 0AH	100%	100%
NP12 0AJ	0%	0%
NP12 0AL	100%	74.1%
NP12 0AN	100%	83.3%
NP12 0AP	100%	88.2%

Business broadband & leased lines in Caerphilly

Whether the NP12 district has full fibre yet or not, we can connect your business. Where FTTP and gigabit are live we quote ultrafast full-fibre; where they aren't, a leased line still delivers guaranteed, symmetric speeds with an SLA. We also handle mobile coverage and VoIP for the same site.

Get a business broadband quote for NP12

Free, no obligation — full fibre, leased line or FTTC, matched to what's actually available at your postcode.

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Nearby NP districts

NP4 — 52.5% gigabit NP20 — 85.2% gigabit NP44 — 81.1% gigabit NP19 — 91% gigabit NP7 — 55.9% gigabit NP11 — 80.8% gigabit NP23 — 50.9% gigabit NP16 — 73.4% gigabit NP26 — 67.9% gigabit NP22 — 81% gigabit

See all Newport (NP) broadband coverage ›

Frequently asked questions

What broadband speeds are available in the NP12 area (Caerphilly)?

In the NP12 area (Caerphilly), superfast broadband (30 Mbit/s+) is available to approximately 96.5% of premises and gigabit-capable broadband to around 75.3%, based on Ofcom Connected Nations data. Exact availability varies by postcode — enter your full postcode in our checker for a precise result.

Can I get full-fibre or gigabit broadband in the NP12 area (Caerphilly)?

Gigabit-capable coverage in the NP12 area (Caerphilly) stands at about 75.3% of premises. Where gigabit and full-fibre (FTTP) are live, businesses can order symmetric, low-latency connections — ideal for cloud, VoIP and multi-site working. If full fibre hasn't reached your premises yet, a leased line can still deliver guaranteed gigabit speeds.

How do I check broadband at my exact address in the NP12 area (Caerphilly)?

Use the free broadband postcode checker on this page: enter your postcode to see fixed-broadband availability, gigabit/full-fibre coverage and mobile signal for all four networks at that location, sourced from official Ofcom data.

Who provides business broadband in the NP12 area (Caerphilly)?

Most UK providers serve the NP12 area (Caerphilly) over the Openreach and (where present) CityFibre or Virgin Media networks. Connection Technologies arranges business broadband, full-fibre (FTTP) and leased lines across the area — request a quote to compare options for your postcode.

Broadband availability data © 2026 Ofcom (Connected Nations), licensed under the Open Government Licence v3.0. Figures are area averages and predictions; availability at an individual address may differ — always confirm with a postcode-level check.