Iver mobile coverage O2 100% indoors here, 90% in SL4 nearby SL3 · Buckinghamshire
No network wins SL3 on overall coverage: all four score 100/100.
SL3: Iver, Stoke Poges, Wexham Court, Fulmer, Horton, Wexham, Datchet, Colnbrook with Poyle (Buckinghamshire, Slough, Windsor and Maidenhead).
SL3 scores
Ofcom Mobile Coverage data (May 2025), measured across 115 addresses in 6 sampled postcodes: SL3 7FP, SL3 7JZ, SL3 7QY, SL3 8LQ, SL3 8NT, SL3 8RR. Methodology.
How SL3 compares
Every network here is within 8 points of the Slough average, indoors and outdoors.
Weakest spot in Slough: SL9 Denham, where EE reaches 14% indoors.
Indoor signal around SL3
| District | km away | EE | O2 | Three | Vodafone |
|---|---|---|---|---|---|
| SL3 Iver (here) | – | 100% | 100% | 100% | 100% |
| SL1 Cippenham, Burnham small sample | 5 | 100% | 100% | 100% | 100% |
| SL2 Burnham, Britwell | 6 | 100% | 100% | 100% | 100% |
| SL4 Dedworth, Bray | 6 | 100% | 90% | 100% | 100% |
| SL9 Denham, Gerrards Cross | 11 | 14% | 100% | 100% | 100% |
| Slough average | – | 95% | 97% | 100% | 100% |
Biggest difference nearby: O2 indoors, 100% here and 90% in SL4 Dedworth, 6 km away.
Small sample: under 30 addresses sampled.
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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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