DL POSTCODE AREA · 8 DISTRICTS SAMPLED
Darlington mobile coverage Vodafone strongest indoors, 100% vs Three 93% DL postcode area
No network wins Darlington on overall coverage: all four are within 1 point, but indoors Vodafone reaches 100% of sampled addresses and Three 93%.
Darlington as a whole
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O2
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Vodafone
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EE
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Three
Ofcom Mobile Coverage data (May 2025), measured across 734 addresses in 42 sampled postcodes, pooled from 8 districts. Methodology.
What differs inside Darlington
Where the networks split most
- DL4 Shildon, Heighington, Eldon: indoors EE, O2 and Vodafone 100%, Three 74%.
- DL8 Witton, Tanfield, Hauxwell: indoors Three 99%, EE 85%.
- DL1 Sadberge, Mordon, Whessoe: indoors O2 and Vodafone 100%, Three 88%.
Each network's weakest and strongest district
| Network | Indoor |
|---|---|
| EE | 85% in DL8 Witton; 100% in 3 districts |
| O2 | 90% in DL8 Witton; 100% in 3 districts |
| Three | 74% in DL4 Shildon; 100% in 3 districts |
Middle of the area against its edges
The 2 districts nearest the middle (DL1 Sadberge, DL3 Hurworth) against the 2 furthest out (DL4 Shildon, DL8 Witton):
- Three indoors: 94% in the middle, 83% at the edges.
District by district
| District | Places | Indoor, low to high | Addresses |
|---|---|---|---|
| DL1 | Sadberge, Mordon, Whessoe | Three 88%; O2 and Vodafone 100% | 181 |
| DL3 | Hurworth, Whessoe, Coatham Mundeville | O2 92%; the rest 100% | 158 |
| DL4 | Shildon, Heighington, Eldon | Three 74%; the rest 100% | 120 |
| DL5 | Aycliffe, Middridge, Heighington | 100% on all four | 90 |
| DL6 | Harlsey, Rounton, Northallerton | EE and Three 93%; the rest 100% | 14 small sample |
| DL7 | Cowton, Otterington, Northallerton | EE 56%; the rest 100% | 16 small sample |
| DL8 | Witton, Tanfield, Hauxwell | EE 85%; Three 99% | 73 |
| DL9 | Colburn, Scotton, Hipswell | O2 95%; Three and Vodafone 100% | 82 |
Marked small sample: under 30 addresses sampled. Listed, but left out of the comparisons above.
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