Knebworth mobile coverage EE 100% indoors here, 84% across Stevenage SG3 · East Hertfordshire
No network wins SG3 on overall coverage: all four score 100/100.
SG3: Knebworth, Tewin, Codicote, Datchworth, Woolmer Green, Walkern, Welwyn East, Hertford Rural (East Hertfordshire, North Hertfordshire, Welwyn Hatfield).
SG3 scores
Ofcom Mobile Coverage data (May 2025), measured across 158 addresses in 5 sampled postcodes: SG3 6AA, SG3 6BB, SG3 6DB, SG3 6EA, SG3 6FG. Methodology.
How SG3 compares
Against the Stevenage average
- EE indoors: 100% here, 84% across Stevenage (+16).
- Three indoors: 100% here, 92% across Stevenage (+8).
Weakest spot in Stevenage: SG4 Weston, where Three reaches 28% indoors.
Indoor signal around SG3
| District | km away | EE | O2 | Three | Vodafone |
|---|---|---|---|---|---|
| SG3 Knebworth (here) | – | 100% | 100% | 100% | 100% |
| SG2 Weston, Walkern | 4 | 100% | 100% | 100% | 100% |
| SG1 Wymondley, Great Ashby | 6 | 100% | 100% | 100% | 100% |
| SG14 Watton-at-Stone, Aston | 8 | 100% | 100% | 87% | 88% |
| SG4 Weston, Kimpton | 8 | 60% | 100% | 28% | 64% |
| Stevenage average | – | 84% | 99% | 92% | 97% |
Biggest difference nearby: Three indoors, 100% here and 87% in SG14 Watton-at-Stone, 8 km away.
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.