NP11 postcode

Broadband in NP11 3BN

Crumlin, Caerphilly

Gigabit broadband is available at this postcode.

Best speedGigabit (1Gbps+)
StandardSuperfastGigabit
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Free, independent comparison · Ofcom verified data · Updated 25 March 2026

Flood Risk

Low

Fibre (FTTP)

No

Best speed

Gigabit (1Gbps+)

Reviewed by Rex BlackwellData last verified: 25 March 2026

Speed Calculator

Adjust the options below to see how much broadband speed your household needs.

2
18

HD uses ~5 Mbps per person. 4K uses ~25 Mbps.

Each person on calls needs around 10 Mbps.

Competitive gaming needs low latency as much as raw speed.

Cameras, thermostats, speakers and similar devices each use a few Mbps.

Estimated speed needed14 Mbps

Gigabit broadband (Gigabit (1Gbps+)) is available at NP11 3BN. That covers your 14 Mbps needs with room to spare.

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Speed Test

Check your current download speed and see how it compares to what is available at NP11 3BN.

The test downloads a 2 MB file from our server and measures how long it takes.

This test measures download speed only. Results vary depending on network conditions.

Broadband availability

Source: Ofcom Connected Nations 2025 (Jul 2025)

TechnologyAvailableCoverageTypical Speed
Standard (ADSL)100%
100%
10-20 Mbps
Superfast (30+ Mbps)100%
100%
30-80 Mbps
Ultrafast (100+ Mbps)98%
98%
100-300 Mbps
Full Fibre (FTTP)N/A
N/A
300-900 Mbps
Gigabit98%
98%
900-1,000 Mbps

Speed Distribution at NP11 3BN

30–300 Mbps (2%)
300+ Mbps (98%)

Source: Ofcom Connected Nations 2025

Mobile coverage

4G & 5G coverage · Ofcom Connected Nations 2025

4G Outdoor

95%

4G Indoor

85%

5G Outdoor

%

Networks with 4G

EEO2ThreeVodafone
Ofcom Connected Nations 2025

Schools nearby

Nearest schools within 5 miles · Ofsted ratings as at Jan 2026

Schools data is currently unavailable.

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Flood risk

🟡

Flood risk: Low

This postcode is in undefined — low risk of flooding from rivers and sea.

Flood Zone

Risk Level

Low

Environment Agency

Air quality

Particulate matter & nitrogen dioxide levels

air quality

Air quality data not available.

PM2.5 (fine particles) μg/m³

WHO guideline: 15 μg/m³

PM10 (coarse particles) μg/m³

WHO guideline: 45 μg/m³

NO₂ (nitrogen dioxide) μg/m³

WHO guideline: 25 μg/m³

DEFRA UK-AIR · Guidelines: WHO 2021

Transport links

Nearest train stations and towns

Nearest train stations

No train stations found within 15 miles

Network Rail / National Rail · Straight-line distances

Council tax bands

Band distribution for Caerphilly

Most common: Band

A
5%£1,381
B
10%£1,611
C
20%£1,841
D
25%£2,071
E
20%£2,531
F
10%£2,991
G
8%£3,452
H
2%£4,142

Annual council tax estimates for , 2024/25

VOA (Valuation Office Agency)

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Living near NP11 3BN

NP11 3BN sits in Crumlin, part of Caerphilly. This guide covers broadband speeds, house prices, schools, and more. Every figure comes from verified public data sources. Use it alongside your own research when comparing areas.

Superfast broadband (30 Mbps+) coverage at NP11 3BN stands at 100%. That is above the UK average of 93%. Ultrafast broadband (100 Mbps+) reaches 97.8% of properties. That is solid coverage for bandwidth-heavy households. Gigabit-capable connections cover 97.8% of premises. Most homes can access gigabit speeds if they choose to.

The speed distribution at NP11 3BN tells a more detailed story than headline figures alone. 2.2% of connections fall in the 30 to 300 Mbps range. 97.8% of connections fall in the 300 Mbps or faster range. No premises here are stuck below 5 Mbps. Every property meets the basic threshold for video calls. Over half of connections exceed 300 Mbps. That supports multiple 4K streams, large file transfers, and cloud gaming without issue.

What do the broadband speeds at NP11 3BN mean in practice? Most premises have superfast speeds. Remote working with video calls and cloud tools should be manageable for most households.

Fixed Wireless Access is not currently available at NP11 3BN. For properties without fibre, 4G or 5G home broadband from Three, EE, or Vodafone may be an alternative.

0% of premises at NP11 3BN fall below the Universal Service Obligation of 10 Mbps. Every property here meets the minimum standard. That is not the case everywhere. Next-generation access (NGA) reaches 100% of the area. NGA typically means speeds of 24 Mbps or above.

Flood risk at NP11 3BN is rated Low. Minor precautions may be worth considering. Check with insurers about any loading on premiums.

The three most common bands are D (25%), C (20%), E (20%). Band D corresponds to 1991 property values of £68,001 to £88,000. Current values are typically much higher. The spread across mid-range bands suggests a varied housing stock.

4G outdoor coverage at NP11 3BN reaches 95%. Indoor 4G drops to 85%. Some signal loss indoors is normal. Most calls and data should still work inside. Coverage data covers EE, O2, Three, Vodafone. Check each operator individually, as coverage varies by network.

Suitability scores for NP11 3BN: remote working 55/100, family 50/100, value 50/100. Remote workers may want to verify actual speeds before committing.

The local authority for NP11 3BN is Caerphilly. The immediate area is Crumlin, a distinct community within the wider district. The NP11 postcode area contains 905 postcodes on this site. Superfast broadband across NP11 ranges from 0% to 100%. NP11 3BN is close to the area average of 97%.

How does NP11 3BN compare to its neighbours? NP11 3DT (0.06 miles, crumlin) has 100% superfast coverage and 100% gigabit. Coverage is broadly similar across these neighbouring postcodes.

Not every property at NP11 3BN gets the same speeds. Run a postcode check with each provider before signing up. Headline speeds are not guarantees. If fibre is unavailable, consider 4G home broadband or satellite as alternatives. Speeds may still be adequate for most uses. Compare contract lengths, total costs over the term, and exit fees. The cheapest monthly rate is not always the best deal.

Life in Crumlin depends on what matters to you. Broadband, transport, and local services vary by street.

Looking at the overall picture for NP11 3BN, a few things are worth highlighting. Connectivity at NP11 3BN is a strength. Strong broadband coverage gives flexibility for both working and leisure. The area scores well on that front. Caerphilly as a local authority area has its own planning priorities, council services, and infrastructure investment plans. Check the council website for the latest. The data covers what can be measured. Crumlin has its own character that numbers alone cannot capture. Use these figures as a filter, then visit to get the full picture.

Data sources include Ofcom (broadband and mobile), Land Registry (house prices), Police.uk (crime), Ofsted (schools), Environment Agency (flood risk), and Open-Meteo (air quality). Council tax data comes from the Valuation Office Agency. EPC data is from DLUHC. Transport data uses NaPTAN. Speed distribution figures are from Ofcom Connected Nations. All figures are the latest available at the time of writing.

Before making a decision about NP11 3BN, visit in person. Check the commute at rush hour. Try the mobile signal indoors. Look at local shops and green spaces. Ask about broadband reliability, not just speed. Data sets the scene, but real life fills in the gaps.

NP11 3BN in Crumlin: broadband, house prices, crime, schools, and more. All from verified sources. Run a speed test above for a live reading. Compare with nearby postcodes to see how this area stacks up against its neighbours.

More local data is being added for this postcode

This page already has postcode-specific content, and more data-backed sections will appear as the remaining local datasets finish processing.

Frequently asked questions about NP11 3BN

What are the broadband speeds available at NP11 3BN?

Superfast broadband (30 Mbps+) is available to 100% of premises at NP11 3BN. Ultrafast coverage is at 97.8%.

What is the average house price near NP11 3BN?

No recent house price data is available for NP11 3BN.

What is the flood risk for properties at NP11 3BN?

NP11 3BN has a Low flood risk rating. Check Environment Agency maps for detail.

What schools are nearby in the NP11 3BN area?

School data for NP11 3BN is being updated. Check the Get Information About Schools service for the latest.

How does crime rate in NP11 3BN compare to other areas?

Crime data for this area is being updated.

How suitable is NP11 3BN for remote working?

NP11 3BN scores 55/100 for remote working suitability. Speeds may limit video-heavy workflows.

What is the mobile signal like at NP11 3BN?

4G outdoor coverage at NP11 3BN is 95%. Indoor coverage may be lower.

What is the most common energy efficiency rating near NP11 3BN?

EPC data for NP11 3BN is being updated. Check the EPC register for individual property ratings.

What is the council tax band distribution at NP11 3BN?

Council tax band information for NP11 3BN is being updated.

How accessible are GP surgeries near NP11 3BN?

GP surgery data for NP11 3BN is being updated. Check NHS.uk for the latest.

What transport links are available near NP11 3BN?

Transport data for NP11 3BN is being updated.

Is NP11 3BN a suitable area for families?

NP11 3BN scores 50/100 for family suitability. Check school and crime sections above for detail.

What is the air quality like at NP11 3BN?

Air quality data for NP11 3BN is being updated.

How far is the nearest EV charging point from NP11 3BN?

EV charging data for NP11 3BN is being updated. Check Zap-Map for the latest.

Can I get full fibre broadband at NP11 3BN?

Ultrafast broadband (100 Mbps+) reaches 97.8% of premises. Check Openreach and local operators for FTTP availability.

Area suitability scores

NP11 3BN

Remote Worker

55

Based on superfast broadband coverage, FTTP %, and 4G mobile outdoor coverage.

Family

50

Based on Ofsted school ratings, crime rate, flood risk, and GP surgery proximity.

Value for Money

50

Based on broadband quality relative to average house price in the area.

Map

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Area info

Parish

Crumlin

District

Caerphilly

Region

Constituency

LSOA

W01001359

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