CB9 broadband and area guide
Ofcom coverage, connection speeds, house prices and local data for 818 postcodes across 4 sectors in West Suffolk.
Full fibre
0%
Gigabit
88%
Superfast
98%
Postcodes
818
CB9 spans Braintree with exceptional coverage: 88.1% gigabit and only 0.5% below 10 Mbps across 818 postcodes, with 4.4% wireless.
Broadband speeds in CB9
Share of CB9 premises by the fastest download speed available, averaged across all 818 postcodes in the district.
CB9 spanning its 818 postcodes demonstrates excellent infrastructure for a district outside Cambridge proper. Gigabit networks reach 88.1% of postcodes, showing competitive infrastructure development supporting demanding use. Superfast penetration reaches 98.2%, ensuring strong baseline broadband across nearly all postcodes. Wireless networks account for 4.4%, higher than Cambridges urban zones, supplementing cable and fibre in select areas where wired infrastructure is sparse.
Below-10 Mbps premises are negligible at 0.5%, making sub-30 Mbps connectivity a non-issue for nearly all residents. Only 0.1% lack universal service obligation coverage entirely. Speed distribution is clean and reliable: 88.1% of postcodes support gigabit capability (300+ Mbps), 10.1% occupy the 30 to 300 Mbps conventional superfast band, with minimal tail. This profile shows Braintrees infrastructure competitive with Cambridges leading urban zones, reflecting strategic investment in suburban fibre deployment. For households, gigabit is probable in most postcodes, enabling unrestricted household and professional use without contention.
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
<1%
Premises unable to get the 10 Mbps universal service minimum
Fixed wireless
4%
Premises that can use a fixed wireless access service
Broadband by sector
CB9 splits into 4 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 |
|---|---|---|---|---|
| CB9 0 | 141 | 99% | 0% | 92% |
| CB9 7 | 329 | 96% | 0% | 83% |
| CB9 8 | 149 | 100% | 0% | 85% |
| CB9 9 | 199 | 100% | 0% | 96% |
All CB9 0 postcodes (141)
All CB9 7 postcodes (329)
All CB9 8 postcodes (149)
All CB9 9 postcodes (199)
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Living in West Suffolk
CB9 shows Braintree's strong infrastructure despite its distance from Cambridge. Price data is not available here, but connectivity is a standout feature.
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
CB9 broadband FAQs
How does CB9 compare to central Cambridge?
88.1% gigabit is competitive with CB3 and CB5. Braintree's cable and fibre coverage matches leading Cambridge zones.
Why does fixed wireless feature at 4.4%?
Wireless fills coverage gaps where cable gigabit cannot reach economically. It works as backup for some Braintree postcodes.
Is below-10Mbps broadband a real risk here?
Virtually no. Only 0.5% of postcodes fall that low, negligible across the district.
Should Braintree commuters to Cambridge factor broadband into their move?
Not significantly. CB9 offers gigabit or superfast options to 98% of postcodes, supporting remote and hybrid work alike.
Neighbouring districts
Check your exact postcode
Every postcode in CB9 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