Cambridge mobile coverage Three indoors runs from 60% to 100% by district CB postcode area
No network wins Cambridge on overall coverage: all four are within 1 point, but indoors EE and O2 reach 96% of sampled addresses and Three 90%.
Cambridge as a whole
Ofcom Mobile Coverage data (May 2025), measured across 1,081 addresses in 46 sampled postcodes, pooled from 9 districts. Methodology.
What differs inside Cambridge
Where the networks split most
- CB8 Newmarket, Exning, Fordham: indoors EE, O2 and Vodafone 100%, Three 60%.
- CB6 Manea, Sutton, Stretham: indoors O2 100%, Vodafone 66%.
- CB7 Soham, Fordham, Isleham: indoors EE 100%, Vodafone 66%.
Each network's weakest and strongest district
| Network | Indoor |
|---|---|
| EE | 69% in CB3 Girton; 100% in 6 districts |
| O2 | 68% in CB7 Soham; 100% in 8 districts |
| Three | 60% in CB8 Newmarket; 100% in 5 districts |
| Vodafone | 66% in CB6 Manea, CB7 Soham; 100% in 7 districts |
Middle of the area against its edges
The 3 districts nearest the middle (CB1 Fulbourn, CB4 Chesterton, CB5 Fen Ditton) against the 3 furthest out (CB6 Manea, CB7 Soham, CB9 Haverhill):
- Vodafone indoors: 100% in the middle, 80% at the edges.
- O2 indoors: 100% in the middle, 88% at the edges.
District by district
| District | Places | Indoor, low to high | Addresses |
|---|---|---|---|
| CB1 | Fulbourn, Cambourne, Fen Ditton | 100% on all four | 97 |
| CB2 | South Trumpington, Market, Harston | 100% on all four | 87 |
| CB3 | Girton, Grantchester, Market | EE 69%; O2 and Vodafone 100% | 108 |
| CB4 | Chesterton, Milton, Impington | 100% on all four | 94 |
| CB5 | Fen Ditton, Teversham, Market | EE 95%; the rest 100% | 165 |
| CB6 | Manea, Sutton, Stretham | Vodafone 66%; O2 100% | 79 |
| CB7 | Soham, Fordham, Isleham | Vodafone 66%; EE 100% | 140 |
| CB8 | Newmarket, Exning, Fordham | Three 60%; the rest 100% | 164 |
| CB9 | Haverhill, Kedington, Withersfield | 100% on all four | 147 |
Guide: Best Mobile Network in Cambridge (2026): CB1 to CB9 Compared
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.