CF10 postcode
Broadband in CF10 2DX
Castle, Cardiff
Gigabit broadband is available at this postcode.
Free, independent comparison · Ofcom verified data · Updated 5 March 2026
Flood Risk
Low
Fibre (FTTP)
No
Best speed
Gigabit (1Gbps+)
Speed Calculator
Adjust the options below to see how much broadband speed your household needs.
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.
Gigabit broadband (Gigabit (1Gbps+)) is available at CF10 2DX. That covers your 14 Mbps needs with room to spare.
Speed Test
Check your current download speed and see how it compares to what is available at CF10 2DX.
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)
| Technology | Available | Coverage | Typical Speed |
|---|---|---|---|
| Standard (ADSL) | 46% | 46% | 10-20 Mbps |
| Superfast (30+ Mbps) | 46% | 46% | 30-80 Mbps |
| Ultrafast (100+ Mbps) | 39% | 39% | 100-300 Mbps |
| Full Fibre (FTTP) | 0% | 0% | 300-900 Mbps |
| Gigabit | 39% | 39% | 900-1,000 Mbps |
Speed Distribution at CF10 2DX
Source: Ofcom Connected Nations 2025
Mobile coverage
4G & 5G coverage · Ofcom Connected Nations 2025
4G Outdoor
4G Indoor
5G Outdoor
Networks with 4G
Schools nearby
Nearest schools within 5 miles · Ofsted ratings as at Jan 2026
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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
Air quality
Particulate matter & nitrogen dioxide levels
air quality
Air quality data not available.
WHO guideline: 15 μg/m³
WHO guideline: 45 μg/m³
WHO guideline: 25 μg/m³
Transport links
Nearest train stations and towns
Nearest train stations
No train stations found within 15 miles
Council tax bands
Band distribution for Cardiff
Most common: Band
Annual council tax estimates for , 2024/25
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CF10 2DX sits in Castle, part of Cardiff. 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 coverage here stands at 46.2%. Nationally, 93% of UK premises have access. Some properties may struggle with speed. Ultrafast broadband (100 Mbps+) reaches 38.5% of properties. Fewer than half of homes here can get ultrafast speeds. Gigabit-capable connections cover 38.5% of premises. Gigabit is available but not yet widespread at this postcode.
Here is how broadband speeds break down across premises at CF10 2DX. 53.8% of connections fall in the 10 to 30 Mbps range. 7.7% of connections fall in the 30 to 300 Mbps range. 38.5% 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. 38.5% of premises can hit 300 Mbps or more. That is enough for demanding multi-device households.
Translating the numbers at CF10 2DX into daily use gives a clearer picture. Superfast coverage is limited here. Streaming HD video should work on one device. Multiple simultaneous streams may struggle during peak hours.
Fixed Wireless Access is not currently available at CF10 2DX. For properties without fibre, 4G or 5G home broadband from Three, EE, or Vodafone may be an alternative.
The USO guarantees every UK home at least 10 Mbps. At CF10 2DX, 0% of properties do not meet this threshold. Every property here meets the minimum standard. That is not the case everywhere. Next-generation access (NGA) reaches 46.2% of the area. NGA typically means speeds of 24 Mbps or above.
Flood risk at CF10 2DX 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.
Outdoor 4G mobile signal at CF10 2DX is available across 95% of the area. 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. Strong 4G coverage combined with limited fixed broadband means 4G home broadband could be a practical alternative here.
Suitability scores for CF10 2DX: remote working 35/100, family 50/100, value 50/100. Remote workers may want to verify actual speeds before committing.
CF10 2DX falls within the Cardiff local authority area. The immediate area is Castle, a distinct community within the wider district. The CF10 postcode area contains 566 postcodes on this site. Superfast broadband across CF10 ranges from 0% to 100%. CF10 2DX is below the area average of 80%.
How does CF10 2DX compare to its neighbours? CF10 2DY (0.03 miles, castle) has 88.2% superfast coverage and 88.2% gigabit. CF10 2HH (0.03 miles, castle) has 100% superfast coverage and 100% gigabit. CF10 2GA (0.03 miles, castle) has 100% superfast coverage and 100% gigabit. CF10 2HD (0.04 miles, castle) has 100% superfast coverage and 100% gigabit. Neighbouring postcodes tend to have better superfast coverage.
Broadband availability varies by provider and by property. At CF10 2DX, check individual coverage tools from BT, Sky, Virgin Media, and local operators. 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.
Every part of Castle has its own feel. This data gives you the factual starting point. A visit fills in the rest.
Looking at the overall picture for CF10 2DX, a few things are worth highlighting. Cardiff 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. Castle 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.
Data is a starting point for Castle. Walk the streets at different times. Test your mobile signal. Check parking, noise levels, and the feel of the neighbourhood. Run a speed test on the actual connection. Some things only a visit can reveal.
CF10 2DX in Castle: 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 CF10 2DX
What are the broadband speeds available at CF10 2DX?
Superfast broadband (30 Mbps+) is available to 46.2% of premises at CF10 2DX. Ultrafast coverage is at 38.5%.
What is the average house price near CF10 2DX?
No recent house price data is available for CF10 2DX.
What is the flood risk for properties at CF10 2DX?
CF10 2DX has a Low flood risk rating. Check Environment Agency maps for detail.
What schools are nearby in the CF10 2DX area?
School data for CF10 2DX is being updated. Check the Get Information About Schools service for the latest.
How does crime rate in CF10 2DX compare to other areas?
Crime data for this area is being updated.
How suitable is CF10 2DX for remote working?
CF10 2DX scores 35/100 for remote working suitability. Speeds may limit video-heavy workflows.
What is the mobile signal like at CF10 2DX?
4G outdoor coverage at CF10 2DX is 95%. Indoor coverage may be lower.
What is the most common energy efficiency rating near CF10 2DX?
EPC data for CF10 2DX is being updated. Check the EPC register for individual property ratings.
What is the council tax band distribution at CF10 2DX?
Council tax band information for CF10 2DX is being updated.
How accessible are GP surgeries near CF10 2DX?
GP surgery data for CF10 2DX is being updated. Check NHS.uk for the latest.
What transport links are available near CF10 2DX?
Transport data for CF10 2DX is being updated.
Is CF10 2DX a suitable area for families?
CF10 2DX scores 50/100 for family suitability. Check school and crime sections above for detail.
What is the air quality like at CF10 2DX?
Air quality data for CF10 2DX is being updated.
How far is the nearest EV charging point from CF10 2DX?
EV charging data for CF10 2DX is being updated. Check Zap-Map for the latest.
Can I get full fibre broadband at CF10 2DX?
Ultrafast broadband (100 Mbps+) reaches 38.5% of premises. Check Openreach and local operators for FTTP availability.
Area suitability scores
CF10 2DXRemote Worker
35Based on superfast broadband coverage, FTTP %, and 4G mobile outdoor coverage.
Family
50Based on Ofsted school ratings, crime rate, flood risk, and GP surgery proximity.
Value for Money
50Based on broadband quality relative to average house price in the area.
Map
Area info
Parish
Castle
District
Cardiff
Region
Constituency
LSOA
W01002019
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