PO20 DISTRICT · ARUN
Wittering mobile coverage Three 83% indoors here, 98% across Portsmouth PO20 · Arun
No network wins PO20 on overall coverage: all four are within 3 points, but indoors Vodafone reaches 100% of sampled addresses and Three 83%.
PO20: Wittering, Pagham, Barnham, Tangmere, North Mundham, Oving, Selsey, Birdham (Arun, Chichester).
PO20 scores
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Vodafone
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O2
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EE
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Three
Ofcom Mobile Coverage data (May 2025), measured across 84 addresses in 6 sampled postcodes: PO20 1AU, PO20 7LL, PO20 7NB, PO20 7PU, PO20 7QG, PO20 7RD. Methodology.
How PO20 compares
Against the Portsmouth average
- Three indoors: 83% here, 98% across Portsmouth (−15).
Weakest spot in Portsmouth: PO17 Wickham, where EE reaches 28% indoors.
Lowest indoor figure of the 19 Portsmouth districts sampled, for Three.
Indoor signal around PO20
| District | km away | EE | O2 | Three | Vodafone |
|---|---|---|---|---|---|
| PO20 Wittering (here) | – | 86% | 94% | 83% | 100% |
| PO19 Chichester, Lavant | 6 | 98% | 100% | 100% | 100% |
| PO18 Dean, Chichester | 9 | 47% | 81% | 94% | 72% |
| PO10 Westbourne, Southbourne | 13 | 100% | 100% | 100% | 100% |
| PO11 Hayling | 14 | 100% | 100% | 97% | 100% |
| Portsmouth average | – | 91% | 98% | 98% | 99% |
Biggest difference nearby: Three indoors, 83% here and 100% in PO19 Chichester, 6 km away.
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