Ofcom Map Your Mobile: Check Signal Coverage in Your Area (2026 Update)
Ofcom, the UK communications regulator, provides the Map Your Mobile service — an independent, crowd-sourced coverage checker that shows real-world mobile signal strength across the UK. Unlike individual network coverage maps, Ofcom’s tool uses data collected from thousands of actual users, making it far more reliable for business decisions.
Try it now: Ofcom Mobile Coverage Checker
How Map Your Mobile works
The tool uses real-world signal measurements to show:
- 4G and 5G coverage across all major UK networks (Vodafone, EE, O2, Three)
- Indoor and outdoor signal strength at street level
- Voice call reliability and data speed indicators
- Geographic signal maps for specific postcodes or locations
You can compare providers side-by-side and zoom into street-level detail to see exactly how coverage changes between your office, warehouse, client sites, and regular travel routes.
What changed in 2026
Ofcom’s latest Connected Nations report shows significant improvements in UK mobile coverage:
- 5G coverage expansion — all four networks have expanded 5G significantly, with EE and Three leading in city coverage
- Indoor coverage improvements — new spectrum allocations are improving signal penetration into buildings
- Rural connectivity push — the Shared Rural Network programme continues to reduce not-spots in remote areas
- Crowd-sourced data growing — Map Your Mobile now has significantly more data points than at launch, making it increasingly accurate
These improvements mean the best network for your business may have changed since you last checked. If you signed your current contract more than 12 months ago, it is worth re-checking coverage.
Why this matters for business
Choosing the right mobile network is not just about price — it is about performance where you actually need it. With Ofcom’s tool, you can:
- Avoid dead zones at your office, warehouse, or customer sites
- Choose the best network for rural, remote, or indoor locations
- Make data-driven decisions when switching providers
- Verify network claims before committing to a contract
- Identify whether different employees should be on different networks based on their locations
How Connection Technologies uses Ofcom data
At Connection Technologies, we do not rely on any single network’s marketing claims. As an independent provider, we use Ofcom’s coverage data alongside our own analysis to:
- Check signal at your key locations — office, branches, warehouses, client sites, and travel routes
- Compare all four networks — identify which genuinely delivers the best coverage where you need it
- Recommend the right provider — or a mix of providers if different employees need different networks
- Monitor ongoing performance — if coverage changes, we can switch you to a better network
This independent approach has saved thousands of businesses from signing contracts with networks that cannot deliver reliable signal at their locations. For a deeper look at how to check coverage yourself, read our complete UK mobile signal map guide.
Frequently asked questions about mobile coverage
Is Ofcom data more accurate than the networks?
Yes, generally. Ofcom’s Map Your Mobile uses crowd-sourced data from real users, while individual network coverage maps are based on theoretical propagation models. Real-world data accounts for buildings, terrain, and other factors that theoretical models can miss.
How often is the coverage data updated?
Ofcom collects data continuously from participating devices. The map is updated regularly, though the frequency of updates for any specific location depends on how many users contribute data from that area.
Can I check 5G coverage on Map Your Mobile?
Yes, the tool shows both 4G and 5G coverage. However, 5G data may be less comprehensive in areas where the rollout is recent and fewer measurements have been collected.
What should I do if no network has good coverage at my location?
If mobile signal is poor at your premises, consider Wi-Fi calling (supported by all four networks), an Ofcom-approved signal booster, or a multi-network SIM that automatically switches to the strongest signal.
Get a free coverage analysis for your business
Stop guessing which network is best. Connection Technologies will check Ofcom data for all your business locations and recommend the provider that genuinely delivers the best signal where you need it — completely free and with no obligation.