KA21 broadband and area guide
Ofcom coverage, connection speeds, house prices and local data for 370 postcodes across 3 sectors in North Ayrshire.
Full fibre
0%
Gigabit
91%
Superfast
99%
Postcodes
370
North Ayrshire's KA21 spans 370 postcodes with exceptional cable gigabit deployment. Superfast is nearly universal, and only a token minority face slow speeds.
Broadband speeds in KA21
Share of KA21 premises by the fastest download speed available, averaged across all 370 postcodes in the district.
Gigabit-capable access reaches 90.9% of KA21's postcodes through cable infrastructure. Superfast is available to 98.8%, with only 4 postcodes outside the 30 Mbps envelope. Below-10Mbps coverage is minimal at 0.8%, affecting roughly 3 postcodes. The speed distribution is heavily skewed toward gigabit (90.9%), with the non-gigabit minority (7.9%) accessing reliable 30 to 300 Mbps superfast speeds suitable for home working and streaming. No full fibre infrastructure is recorded. Cable networks carry the gigabit load across the postcode area. This outcode represents mature, equitable broadband deployment with minimal geographic variation.
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
KA21 splits into 3 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 |
|---|---|---|---|---|
| KA21 5 | 196 | 99% | 0% | 87% |
| KA21 6 | 173 | 98% | 0% | 95% |
| KA21 9 | 1 | 100% | TBC | 100% |
All KA21 5 postcodes (196)
All KA21 6 postcodes (173)
All KA21 9 postcodes (1)
Best deals
Compare broadband deals in KA21
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Living in North Ayrshire
KA21 is among the most predictably well-served postcodes in Ayrshire. Property hunters can safely assume gigabit or at worst superfast access. Broadband is not a limiting factor here.
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
KA21 broadband FAQs
How does KA21's connectivity compare to KA20?
Nearly identical. Both exceed 90% gigabit availability and 98% superfast. KA21 is marginally larger (370 versus 264 postcodes) but equally well-connected.
Is moving to KA21 safe for a remote worker?
Absolutely. 90.9% gigabit and only 0.8% below-10Mbps make this exceptionally reliable for home-office use.
What are the odds my property in KA21 will lack superfast?
1.2%. Four postcodes out of 370 fall below 30 Mbps. Request a speed check to confirm yours isn't one of them.
Why isn't fibre available in KA21?
The dataset records the dominant technology. Cable delivers gigabit here. Fibre may exist in pockets but is not the infrastructure backbone.
Neighbouring districts
Check your exact postcode
Every postcode in KA21 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