Colburn mobile coverage EE 98% indoors here, 85% in DL8 nearby DL9 · North Yorkshire
No network wins DL9 on overall coverage: all four are within 1 point, but indoors Three and Vodafone reach 100% of sampled addresses and O2 95%.
DL9: Colburn, Scotton, Hipswell, Hunton, Tunstall, Brough with St. Giles, Catterick Village, Brompton-on-Swale (North Yorkshire).
DL9 scores
Ofcom Mobile Coverage data (May 2025), measured across 82 addresses in 5 sampled postcodes: DL9 4BT, DL9 4DU, DL9 4EW, DL9 4JF, DL9 4SF. Methodology.
How DL9 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 DL9
| District | km away | EE | O2 | Three | Vodafone |
|---|---|---|---|---|---|
| DL9 Colburn (here) | – | 98% | 95% | 100% | 100% |
| DL8 Witton, Tanfield | 10 | 85% | 90% | 99% | 97% |
| DL7 Cowton, Otterington small sample | 15 | 56% | 100% | 100% | 100% |
| DL3 Hurworth, Whessoe | 20 | 100% | 92% | 100% | 100% |
| DL1 Sadberge, Mordon | 20 | 96% | 100% | 88% | 100% |
| Darlington average | – | 96% | 97% | 93% | 100% |
Biggest difference nearby: EE indoors, 98% here and 85% in DL8 Witton, 10 km away.
Small sample: under 30 addresses sampled.
Compare plans
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.
1pMobile plans →Some links on this page are affiliate links. How we rank.