Sadberge mobile coverage Three 88% indoors here, 100% in DL3 nearby DL1 · County Durham
No network wins DL1 on overall coverage: all four are within 2 points, but indoors O2 and Vodafone reach 100% of sampled addresses and Three 88%.
DL1: Sadberge, Mordon, Whessoe, Barmpton, Brafferton, Great Burdon, Morton Palms, Great Aycliffe (County Durham, Darlington).
DL1 scores
Ofcom Mobile Coverage data (May 2025), measured across 181 addresses in 6 sampled postcodes: DL1 1AU, DL1 1GX, DL1 1JP, DL1 1PF, DL1 2BJ, DL1 2LS. Methodology.
How DL1 compares
Every network here is within 8 points of the Darlington average, indoors and outdoors.
Weakest spot in Darlington: DL4 Shildon, where Three reaches 74% indoors.
Indoor signal around DL1
| District | km away | EE | O2 | Three | Vodafone |
|---|---|---|---|---|---|
| DL1 Sadberge (here) | – | 96% | 100% | 88% | 100% |
| DL3 Hurworth, Whessoe | 2 | 100% | 92% | 100% | 100% |
| DL5 Aycliffe, Middridge | 10 | 100% | 100% | 100% | 100% |
| DL4 Shildon, Heighington | 13 | 100% | 100% | 74% | 100% |
| DL6 Harlsey, Rounton small sample | 20 | 93% | 100% | 93% | 100% |
| Darlington average | – | 96% | 97% | 93% | 100% |
Biggest difference nearby: Three indoors, 88% here and 100% in DL3 Hurworth, 2 km away.
Small sample: under 30 addresses sampled.
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