How do I check mobile signal strength for my postcode?

Enter your UK postcode in the search box on SigInfo.uk. You'll get coverage data from EE, O2, Vodafone and Three, including 4G and 5G availability, signal strength estimates, and nearby base station locations.

What data does SigInfo provide?

SigInfo provides 30+ data points per postcode including mobile coverage from all UK operators, broadband speeds, nearby base stations, aviation restrictions, weather impact on signal, crime statistics, flood risk, and environmental data.

Is SigInfo free to use?

Yes, SigInfo is completely free. You can check signal coverage, view base stations, run network diagnostics, and generate intelligence reports for any UK postcode at no cost.

Which mobile networks does SigInfo cover?

SigInfo covers all four major UK mobile networks: EE, O2, Vodafone, and Three. Coverage data includes 2G, 3G, 4G, and 5G availability with indoor and outdoor signal strength estimates.

30+ Data Points per Postcode

UK Mobile Signal
Checker

Mobile coverage, broadband speed, base stations, aviation data, weather impact and more -- for any UK postcode.

SW1A 1AA M1 1AE B1 1BB LS1 1UR EH1 1RE CF10 1EP

Operators

4 Networks

Data Sources

10+ APIs

Coverage

All UK

Price

100% Free

Free, no signup

Open data sources

Every UK postcode

Works on all devices

🔧

Network Toolbox

DNS, Whois, Ping, Port Scan, SSL, SPF/DMARC, Hash, JWT, Regex & more

22 Tools 100% Free No Signup

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OSINT Intelligence Report PREMIUM

Comprehensive open-source intelligence report for this location. Includes infrastructure analysis, risk assessment, connectivity profiling, network vulnerability mapping, historical data trends and executive summary.

£79.99

Free!

Excellent

Live Network Status

Detailed Operator Coverage

Nearby Base Stations

0 base stations within 2km

Signal Intelligence

Broadband Speed

Fixed-line internet

Power Line Interference

RF environment

UK Ranking

vs national average

Public WiFi

Hotspots nearby

Underground Coverage

Transit mobile coverage

Weather Signal Forecast

Weather

Signal Impact

5G Rain Fade

mmWave degradation

Now+6h+12h

Network Performance 5 analyses ▾

Network Congestion by Hour

00040812162023

Network Latency Estimates

Speed Test

Network Congestion Risk

3G Sunset Impact Assessment

Coverage History Timeline

Connectivity & Broadband 6 analyses ▾

Fibre Backhaul Availability

Satellite Broadband Alternatives

Nearest Data Centres

Closest Data Centre

Calculating...

Estimated Latency

To nearest data centre

BT/Openreach Exchange Data

Nearest Exchange

Calculating...

Est. Line Length

Copper routing estimate

PSTN Status

Checking...

Digital Deprivation Index

Commuter Signal Corridors

Planning & Infrastructure 5 analyses ▾

Mast Planning Applications

Mast Installation Cost Estimate

Infrastructure Sharing

Mast Regulations & Permitted Development

Listed Buildings & Conservation Status

Environment & Property 5 analyses ▾

Terrain & Signal Propagation

Building Age Profile & Indoor Signal Loss

Electromagnetic Interference Sources

Solar Panel Potential

Environmental Noise Levels

Area Context 7 analyses ▾

Area Intelligence

Crime Rate

Population Density

Network congestion indicator

Elevation

Affects signal propagation

Air Quality

Environmental index

Property Value

Average area price

Risk Assessment

Flood Risk

Infrastructure risk

Conservation Area

Planning difficulty

Aviation & Airspace

Nearest Airport

Calculating...

Drone Status

Checking restrictions...

Max Mast Height

Checking regulations...

Tallest Building

Estimated max height

Airspace Classification

Checking...

Local Amenities 5 analyses ▾

Nearest Emergency Services

Police Stations

Fire Stations

Schools, Hospitals & Sensitive Sites

EV Charging Stations Nearby

Closest IT & Telecoms Businesses

Free WiFi Locations

Signal Solutions Personalised recommendations

Line of Sight Analysis

LOS Status

Distance

Elev. Change

Fresnel Clear.

Elevation Profile

Path Loss Estimates

800 MHz (4G)

1800 MHz (4G)

2600 MHz (4G)

3500 MHz (5G)

Technical Details

UK Mobile SignalChecker

Network Toolbox

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Live Network Status

Detailed Operator Coverage

Nearby Base Stations

Signal Intelligence

Weather Signal Forecast

Network Congestion by Hour

Network Latency Estimates

Speed Test

Network Congestion Risk

3G Sunset Impact Assessment

Coverage History Timeline

Fibre Backhaul Availability

Satellite Broadband Alternatives

Nearest Data Centres

BT/Openreach Exchange Data

Digital Deprivation Index

Commuter Signal Corridors

Mast Planning Applications

Mast Installation Cost Estimate

Infrastructure Sharing

Mast Regulations & Permitted Development

Listed Buildings & Conservation Status

Terrain & Signal Propagation

Building Age Profile & Indoor Signal Loss

Electromagnetic Interference Sources

Solar Panel Potential

Environmental Noise Levels

Area Intelligence

Risk Assessment

Aviation & Airspace

Nearest Emergency Services

Police Stations

Fire Stations

Schools, Hospitals & Sensitive Sites

EV Charging Stations Nearby

Closest IT & Telecoms Businesses

Free WiFi Locations

Signal Solutions Personalised recommendations

Line of Sight Analysis

Elevation Profile

Path Loss Estimates

UK Mobile Signal
Checker