CB1 broadband and area guide
Ofcom coverage, connection speeds, house prices and local data for 905 postcodes across 7 sectors in Cambridge.
Full fibre
0%
Gigabit
96%
Superfast
100%
Postcodes
905
CB1 is Cambridge's central postcode, serving 905 properties with near-total gigabit penetration. 96.8% access 300+ Mbps, and connectivity gaps are minimal.
Broadband speeds in CB1
Share of CB1 premises by the fastest download speed available, averaged across all 905 postcodes in the district.
Urban fibre infrastructure in CB1 is exceptional. Gigabit reaches 96.8% of postcodes, the second-highest rate across all 20 districts, across 905 surveyed premises. Superfast is near-universal at 99.7%. The speed profile is heavily weighted toward gigabit: 96.8% enjoy 300+ Mbps, just 2.9% sit at superfast (30-299 Mbps), and sub-10 Mbps speeds are marginal at 0.1%. Zero premises fall below the universal service obligation threshold. This reflects Cambridge city centre's mature, competitive fibre market. Multiple providers have deployed gigabit networks throughout the postcode. Urban density has enabled infrastructure investment. Network quality is uniformly excellent.
Source: Ofcom Connected Nations. Percentages are district-wide averages of postcode-level availability, so rows may not sum to exactly 100%.
Connectivity in detail
Below 10 Mbps USO
0%
Premises unable to get the 10 Mbps universal service minimum
Fixed wireless
0%
Premises that can use a fixed wireless access service
Broadband by sector
CB1 splits into 7 postcode sectors. Coverage and prices can differ street by street, so open a sector below to find your exact postcode.
| Sector | Postcodes | Superfast | Full fibre | Gigabit |
|---|---|---|---|---|
| CB1 0 | 1 | 0% | TBC | 0% |
| CB1 1 | 107 | 99% | 0% | 92% |
| CB1 2 | 164 | 100% | 0% | 93% |
| CB1 3 | 288 | 100% | 0% | 99% |
| CB1 7 | 87 | 100% | 0% | 98% |
| CB1 8 | 97 | 100% | 0% | 98% |
| CB1 9 | 161 | 100% | 0% | 96% |
All CB1 0 postcodes (1)
All CB1 1 postcodes (107)
All CB1 2 postcodes (164)
All CB1 3 postcodes (288)
All CB1 7 postcodes (87)
All CB1 8 postcodes (97)
All CB1 9 postcodes (161)
Best deals
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Living in Cambridge
Households in CB1 can assume gigabit availability as standard and plan around multiple provider options.
Remote worker score
55/100
Connectivity and amenities for home working
Family score
50/100
Schools, safety and family amenities
Value score
50/100
What you get for the local price level
CB1 broadband FAQs
Is gigabit standard in Cambridge's CB1 postcode?
Effectively yes. 96.8% of CB1 has gigabit available, making it the expected choice.
Are there connectivity issues in CB1?
No. Zero premises fall below USO minimums, and only 0.1% record sub-10 Mbps speeds.
Will broadband competition keep prices low?
CB1's 96.8% gigabit penetration reflects multiple providers competing. Choice and price pressure should favour households.
What's the worst-connected postcode in CB1?
The bottom 0.1% report sub-10 Mbps, but they're outliers. Nearly all CB1 has first-rate infrastructure.
Neighbouring districts
Check your exact postcode
Every postcode in CB1 has its own page with broadband speeds, house prices, school ratings and crime stats. You can also compare providers for your address.
Data sources: Broadband data from Ofcom Connected Nations 2025 · House prices from HM Land Registry · Crime from Police.uk · See all data sources