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COVERAGE GUIDE

UK 5G & Coverage 2026

Who has the fastest, who has the widest — and how to check your postcode.

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4G coverage: broadly equal across all networks

All four UK MNOs (EE, O2, Three, Vodafone) claim approximately 99% population outdoor 4G coverage. For everyday use in urban and suburban areas, there's little practical difference. Differences emerge in rural areas and building penetration.

5G: significant differences

Network5G Population5G TownsAvg Download5G Spec
EE87%+500+53.2Mbps5G+ Standalone
O2~70%450+32.8Mbps5G Standalone
Three~62%450+51Mbps (5G: 187Mbps)Most spectrum (140MHz)
VodafoneGrowingMajor cities37.5MbpsIntegrating with Three

Source: Opensignal UK Mobile Network Experience Report, January 2026

MVNOs use host network coverage

Tesco Mobile, Sky Mobile and giffgaff use O2's coverage. iD Mobile uses Three's. VOXI, Lebara and Asda use Vodafone's. BT Mobile uses EE's. Use the host network's coverage checker for accurate results.

How to check your postcode

  • All networks at once: checker.ofcom.org.uk — Ofcom's official checker
  • EE: ee.co.uk/help/network/mobile-coverage-checker
  • O2: o2.co.uk/coveragechecker
  • Three: three.co.uk (coverage map)
  • Vodafone: vodafone.co.uk/network/coverage-checker

Indoor coverage & Wi-Fi Calling

All four networks support Wi-Fi Calling on compatible devices — routes calls over your home Wi-Fi when mobile signal is weak indoors. Enable in your phone's mobile settings. EE's 5G+ Standalone also provides better building penetration.

VodafoneThree network investment

The merged VodafoneThree group has pledged £11 billion in network investment, targeting 99% 5G Standalone population coverage by 2030. MOCN network sharing already active — coverage improving for both Vodafone and Three throughout 2026–2030.

twelvesquid.online (twelvesquid.online) provides independent information about UK mobile networks. We are not affiliated with, endorsed by, or connected to O2, Three, EE, Vodafone, Tesco Mobile, Sky Mobile, Lebara, iD Mobile, VOXI, Asda Mobile, giffgaff, BT Mobile, or any other operator. We do not sell SIM cards, contracts, or devices. No specific pricing is displayed — tariffs change frequently; always verify current prices directly with the network. Calling our number or submitting our form reaches our independent guidance team only, never a network's support line. Network names and brand marks are trademarks of their owners, used solely to identify which network a page covers.

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