Ofcom data · 996 postcodes

S40 broadband coverage — Chesterfield

Full-fibre, gigabit and superfast broadband availability across the S40 postcode district, plus business broadband and leased-line options for Chesterfield.

Excellent coverage

Superfast (30Mb+)

97.6%

Ultrafast (300Mb+)

82.2%

Gigabit-capable

82.2%

Below USO (10Mb)

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

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Broadband in S40

Broadband availability in the S40 postcode district (Chesterfield) is Excellent — gigabit-capable full fibre is widely available. Across the 996 postcodes Ofcom measures in S40, superfast broadband (30 Mbit/s or faster) reaches 97.6% of premises and gigabit-capable lines are available to 82.2%.

Around 0% of premises in S40 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 S40

Postcode	Superfast	Gigabit
S40 1AA	0%	0%
S40 1AB	0%	0%
S40 1AD	100%	100%
S40 1AG	100%	66.7%
S40 1AH	22.7%	0%
S40 1AP	100%	100%
S40 1AQ	0%	0%
S40 1AR	100%	0%
S40 1AX	100%	100%
S40 1AY	0%	0%

Business broadband & leased lines in Chesterfield

Whether the S40 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 S40

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

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Nearby S districts

S75 — 80.6% gigabit S70 — 80.2% gigabit S71 — 81.3% gigabit S6 — 88.1% gigabit S63 — 85.4% gigabit S81 — 78.3% gigabit S66 — 88.7% gigabit S5 — 98.3% gigabit S43 — 79.2% gigabit S60 — 90.6% gigabit

See all Sheffield (S) broadband coverage ›

Frequently asked questions

What broadband speeds are available in the S40 area (Chesterfield)?

In the S40 area (Chesterfield), superfast broadband (30 Mbit/s+) is available to approximately 97.6% of premises and gigabit-capable broadband to around 82.2%, 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 S40 area (Chesterfield)?

Gigabit-capable coverage in the S40 area (Chesterfield) stands at about 82.2% 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 S40 area (Chesterfield)?

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 S40 area (Chesterfield)?

Most UK providers serve the S40 area (Chesterfield) 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.