CB23 postcode
Broadband in CB23 4NH
Boxworth, South Cambridgeshire
Superfast broadband covers 100% of premises here.
Free, independent comparison · Ofcom verified data · Updated 5 March 2026
Flood Risk
Medium
Fibre (FTTP)
No
Best speed
~30 Mbps
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.
The best available speed at CB23 4NH is ~30 Mbps. That covers your 14 Mbps estimate.
Speed Test
Check your current download speed and see how it compares to what is available at CB23 4NH.
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) | 100% | 100% | 10-20 Mbps |
| Superfast (30+ Mbps) | 100% | 100% | 30-80 Mbps |
| Ultrafast (100+ Mbps) | 0% | 0% | 100-300 Mbps |
| Full Fibre (FTTP) | N/A | N/A | 300-900 Mbps |
| Gigabit | 0% | 0% | 900-1,000 Mbps |
Speed Distribution at CB23 4NH
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: Medium
This postcode is in undefined — medium risk of flooding from rivers and sea.
Flood Zone
Risk Level
Medium
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 South Cambridgeshire
Most common: Band
Annual council tax estimates for , 2024/25
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Check Deals →Living near CB23 4NH
Boxworth is home to CB23 4NH. Whether you live here or plan to move, the data below paints a clear picture. Broadband, schools, crime, house prices, and local services all follow. The numbers speak for themselves.
Superfast coverage here stands at 100%. Nationally, 93% of UK premises have access. Coverage at this postcode is strong.
The speed distribution at CB23 4NH tells a more detailed story than headline figures alone. 100% of connections fall in the 30 to 300 Mbps range. No premises here are stuck below 5 Mbps. Every property meets the basic threshold for video calls.
Translating the numbers at CB23 4NH into daily use gives a clearer picture. 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 CB23 4NH. For properties without fibre, 4G or 5G home broadband from Three, EE, or Vodafone may be an alternative.
0% of premises at CB23 4NH 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 CB23 4NH is rated Medium. Check Environment Agency flood maps for detailed information. Specialist flood insurance may be needed.
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 CB23 4NH 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 CB23 4NH: remote working 55/100, family 50/100, value 50/100. Remote workers may want to verify actual speeds before committing.
CB23 4NH falls within the South Cambridgeshire local authority area. The immediate area is Boxworth, a distinct community within the wider district. The CB23 postcode area contains 861 postcodes on this site. Superfast broadband across CB23 ranges from 0% to 100%. CB23 4NH is above the area average of 94%.
How does CB23 4NH compare to its neighbours? CB23 4NN (0.03 miles, boxworth) has 100% superfast coverage and 0% gigabit. Coverage is broadly similar across these neighbouring postcodes.
When choosing a broadband provider at CB23 4NH, check what technology reaches your specific address. Availability varies by street and sometimes by building. 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 Boxworth depends on what matters to you. Broadband, transport, and local services vary by street.
Pulling the data together for CB23 4NH, here is what stands out. Connectivity at CB23 4NH is a strength. Strong broadband coverage gives flexibility for both working and leisure. The area scores well on that front. South Cambridgeshire 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. Boxworth 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.
Numbers tell part of the story for CB23 4NH. Visit at different times of day. Talk to neighbours. Check mobile signal indoors. Walk the route to the nearest school or station. Test the broadband speed from inside the property. These things do not show up in data.
CB23 4NH in Boxworth: 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 CB23 4NH
What are the broadband speeds available at CB23 4NH?
Superfast broadband (30 Mbps+) is available to 100% of premises at CB23 4NH.
What is the average house price near CB23 4NH?
No recent house price data is available for CB23 4NH.
What is the flood risk for properties at CB23 4NH?
CB23 4NH has a Medium flood risk rating. Check Environment Agency maps for detail.
What schools are nearby in the CB23 4NH area?
School data for CB23 4NH is being updated. Check the Get Information About Schools service for the latest.
How does crime rate in CB23 4NH compare to other areas?
Crime data for this area is being updated.
How suitable is CB23 4NH for remote working?
CB23 4NH scores 55/100 for remote working suitability. Speeds may limit video-heavy workflows.
What is the mobile signal like at CB23 4NH?
4G outdoor coverage at CB23 4NH is 95%. Indoor coverage may be lower.
What is the most common energy efficiency rating near CB23 4NH?
EPC data for CB23 4NH is being updated. Check the EPC register for individual property ratings.
What is the council tax band distribution at CB23 4NH?
Council tax band information for CB23 4NH is being updated.
How accessible are GP surgeries near CB23 4NH?
GP surgery data for CB23 4NH is being updated. Check NHS.uk for the latest.
What transport links are available near CB23 4NH?
Transport data for CB23 4NH is being updated.
Is CB23 4NH a suitable area for families?
CB23 4NH scores 50/100 for family suitability. Check school and crime sections above for detail.
What is the air quality like at CB23 4NH?
Air quality data for CB23 4NH is being updated.
How far is the nearest EV charging point from CB23 4NH?
EV charging data for CB23 4NH is being updated. Check Zap-Map for the latest.
Can I get full fibre broadband at CB23 4NH?
Full fibre availability at CB23 4NH is being updated. Check Openreach for the latest rollout status.
Area suitability scores
CB23 4NHRemote Worker
55Based 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
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Area info
Parish
Boxworth
District
South Cambridgeshire
Region
Constituency
LSOA
E01018223
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