Sidcup mobile coverage O2 81% indoors here, 96% across Dartford DA15 · Bexley
No network wins DA15 on overall coverage: all four are within 3 points, but indoors EE, Three and Vodafone reach 100% of sampled addresses and O2 81%.
DA15: Sidcup, Blendon, Penhill, Welling, Blackfen, Lamorbey, Crook Log, Longlands (Bexley, Greenwich).
DA15 scores
Ofcom Mobile Coverage data (May 2025), measured across 175 addresses in 6 sampled postcodes: DA15 8AG, DA15 8ET, DA15 8JG, DA15 8NF, DA15 8WN, DA15 9DT. Methodology.
How DA15 compares
Against the Dartford average
- O2 indoors: 81% here, 96% across Dartford (−15).
Weakest spot in Dartford: DA11 Greenhithe, where EE reaches 22% indoors.
Indoor signal around DA15
| District | km away | EE | O2 | Three | Vodafone |
|---|---|---|---|---|---|
| DA15 Sidcup (here) | – | 100% | 81% | 100% | 100% |
| DA14 Sidcup, Blendon | 2 | 100% | 100% | 100% | 100% |
| DA16 Welling, Crook Log | 3 | 100% | 100% | 100% | 100% |
| DA6 Crayford, Crook Log | 3 | 81% | 100% | 100% | 100% |
| DA5 Wilmington, Blendon | 3 | 100% | 100% | 100% | 100% |
| Dartford average | – | 94% | 96% | 95% | 99% |
Biggest difference nearby: O2 indoors, 81% here and 100% in DA14 Sidcup, 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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