Ofcom data · 910 postcodes

CB1 broadband coverage — Cambridge

Full-fibre, gigabit and superfast broadband availability across the CB1 postcode district, plus business broadband and leased-line options for Cambridge.

Excellent coverage

Superfast (30Mb+)

99.3%

Ultrafast (300Mb+)

93.8%

Gigabit-capable

92.9%

Below USO (10Mb)

0.1%

Check broadband at your exact CB1 postcode

District figures are an average — get the precise availability, full-fibre status and mobile signal for your address.

Check my postcode ›

Broadband in CB1

Broadband availability in the CB1 postcode district (Cambridge) is Excellent — gigabit-capable full fibre is widely available. Across the 910 postcodes Ofcom measures in CB1, superfast broadband (30 Mbit/s or faster) reaches 99.3% of premises and gigabit-capable lines are available to 92.9%.

Around 0.1% of premises in CB1 fall below the Universal Service Obligation (a minimum of 10 Mbit/s download and 1 Mbit/s upload), so the overwhelming majority of homes and businesses here can already order a decent fixed line. For a business that depends on its connection, the figures that matter most are gigabit and full-fibre availability — the symmetric, low-contention services we quote leased lines and FTTP against.

Sample postcodes in CB1

Postcode	Superfast	Gigabit
CB1 0DA	0%	0%
CB1 1AH	100%	100%
CB1 1AJ	100%	100%
CB1 1AL	100%	100%
CB1 1AN	100%	100%
CB1 1AP	100%	0%
CB1 1AQ	100%	100%
CB1 1AR	0%	0%
CB1 1AS	100%	100%
CB1 1AZ	100%	100%

Business broadband & leased lines in Cambridge

Whether the CB1 district has full fibre yet or not, we can connect your business. Where FTTP and gigabit are live we quote ultrafast full-fibre; where they aren't, a leased line still delivers guaranteed, symmetric speeds with an SLA. We also handle mobile coverage and VoIP for the same site.

Get a business broadband quote for CB1

Free, no obligation — full fibre, leased line or FTTC, matched to what's actually available at your postcode.

Get my quote ›

Nearby CB districts

CB8 — 65.7% gigabit CB4 — 93% gigabit CB6 — 83.9% gigabit CB23 — 79.2% gigabit CB9 — 70.4% gigabit CB24 — 70.9% gigabit CB7 — 76.3% gigabit CB22 — 73.7% gigabit CB2 — 80.5% gigabit CB11 — 67.3% gigabit

See all Cambridge (CB) broadband coverage ›

Frequently asked questions

What broadband speeds are available in the CB1 area (Cambridge)?

In the CB1 area (Cambridge), superfast broadband (30 Mbit/s+) is available to approximately 99.3% of premises and gigabit-capable broadband to around 92.9%, based on Ofcom Connected Nations data. Exact availability varies by postcode — enter your full postcode in our checker for a precise result.

Can I get full-fibre or gigabit broadband in the CB1 area (Cambridge)?

Gigabit-capable coverage in the CB1 area (Cambridge) stands at about 92.9% of premises. Where gigabit and full-fibre (FTTP) are live, businesses can order symmetric, low-latency connections — ideal for cloud, VoIP and multi-site working. If full fibre hasn't reached your premises yet, a leased line can still deliver guaranteed gigabit speeds.

How do I check broadband at my exact address in the CB1 area (Cambridge)?

Use the free broadband postcode checker on this page: enter your postcode to see fixed-broadband availability, gigabit/full-fibre coverage and mobile signal for all four networks at that location, sourced from official Ofcom data.

Who provides business broadband in the CB1 area (Cambridge)?

Most UK providers serve the CB1 area (Cambridge) over the Openreach and (where present) CityFibre or Virgin Media networks. Connection Technologies arranges business broadband, full-fibre (FTTP) and leased lines across the area — request a quote to compare options for your postcode.

Broadband availability data © 2026 Ofcom (Connected Nations), licensed under the Open Government Licence v3.0. Figures are area averages and predictions; availability at an individual address may differ — always confirm with a postcode-level check.