What network does iD Mobile use?
iD Mobile runs on Three's network, sharing the same masts and spectrum — including Three's extensive 5G infrastructure. iD Mobile customers get the same 4G and 5G signal as direct Three customers at every UK location. iD Mobile is operated by Currys and is known for flexible data-rollover plans. Enter your postcode above to see iD Mobile's (Three's) coverage scores for your area.
Is iD Mobile coverage the same as Three?
Yes. iD Mobile is an MVNO that uses Three's masts and radio infrastructure. Coverage is identical to Three at every UK location — the same outdoor 4G, the same indoor signal and the same 5G availability. iD Mobile customers have access to Three's 5G network on eligible plans, which includes some of the best 5G signal scores in UK urban areas.
iD Mobile's value: Three network, data rollover included
How good is iD Mobile coverage in the UK?
iD Mobile signal matches Three's national profile: strong in cities and urban centres, with the UK's best 5G spectrum depth. Three's outdoor 4G covers more than 99% of the UK population and leads on 5G in many cities. Its rural reach is slightly below EE and O2 but is improving through the Shared Rural Network.
Where is iD Mobile coverage best?
iD Mobile coverage follows Three's footprint. Three is the best network in 12 of 100 UK postcode districts measured here. Three's strongest region is London with 6 districts. Three's top district is Bromley (BR1) at 83/100.
Which other networks use Three?
iD Mobile, SMARTY all run on Three's network. All 2 get the same Three outdoor 4G signal and the same indoor and 5G coverage. The difference between them is pricing, contract terms and added features — not signal.
iD Mobile coverage compared with EE, O2, Vodafone
Since iD Mobile runs on Three, its coverage follows Three's position in the comparison. Three scores 78/100 for outdoor 4G and 64/100 for indoor signal.
| Metric | EE | O2 | Vodafone | iD Mobile / Three |
|---|---|---|---|---|
| Outdoor 4G | 88↑ | 85 | 83 | 78 |
| Indoor 4G | 74↑ | 71 | 69 | 64 |
| Outdoor 5G | 68 | 60 | 65 | 72↑ |
| Video Calls | 86↑ | 82 | 80 | 75 |
| Streaming | 85↑ | 81 | 79 | 77 |
Scores out of 100. ↑ marks the leader on each metric. iD Mobile (as Three) is highlighted.
Is iD Mobile worth it?
iD Mobile offers Three-class coverage — including 5G — at prices typically below direct Three contracts. Data rollover means unused allowance carries forward rather than being lost. For users who want strong 5G at a budget price, iD Mobile is competitive. SMARTY is an alternative on the same Three network with a slightly different pricing model (refund for unused data).
Frequently asked questions
What network does iD Mobile use?
iD Mobile uses the Three network. It is an MVNO operated by Currys.
Is iD Mobile coverage as good as Three?
Yes — iD Mobile and Three share the same masts. Coverage is identical at every UK location.
Does iD Mobile have 5G?
Yes. iD Mobile offers 5G on eligible plans using Three's extensive 5G network, which leads the UK for spectrum depth in urban areas.
What other networks use Three?
SMARTY also runs on Three's network. Both SMARTY and iD Mobile get the same coverage as direct Three customers.
Check iD Mobile coverage at your postcode
iD Mobile uses Three's signal — enter your postcode to see exactly what you'd get.
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