Sprowston mobile coverage O2 70% indoors here, 95% across Norwich NR3 · Broadland
No network wins NR3 on overall coverage: all four are within 4 points, but indoors EE, Three and Vodafone reach 100% of sampled addresses and O2 70%.
NR3: Sprowston, Old Catton, Crome, Sewell, Mancroft, Mile Cross, Catton Grove, Thorpe Hamlet (Broadland, Norwich).
NR3 scores
Ofcom Mobile Coverage data (May 2025), measured across 123 addresses in 5 sampled postcodes: NR3 1ED, NR3 1JY, NR3 3EG, NR3 3HP, NR3 3JZ. Methodology.
How NR3 compares
Against the Norwich average
- O2 indoors: 70% here, 95% across Norwich (−25).
- Three indoors: 100% here, 83% across Norwich (+17).
Weakest spot in Norwich: NR9 Easton, where Three reaches 28% indoors.
Lowest indoor figure of the 9 Norwich districts sampled, for O2.
Indoor signal around NR3
| District | km away | EE | O2 | Three | Vodafone |
|---|---|---|---|---|---|
| NR3 Sprowston (here) | – | 100% | 70% | 100% | 100% |
| NR2 Sprowston, Eaton | 2 | 100% | 100% | 100% | 100% |
| NR1 Bixley, Sprowston | 2 | 100% | 100% | 100% | 100% |
| NR6 Sprowston, Old Catton | 2 | 100% | 100% | 85% | 100% |
| NR7 Sprowston, Great | 3 | 100% | 100% | 100% | 100% |
| Norwich average | – | 97% | 95% | 83% | 99% |
Biggest difference nearby: O2 indoors, 70% here and 100% in NR2 Sprowston, 2 km away.
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1pMobile runs on EE's network: £5 a month for 5GB (read 19 October 2026). A price, not a coverage ranking: Ofcom separates no network here.
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