SY21 broadband and area guide
Ofcom coverage, connection speeds, house prices and local data for 860 postcodes across 4 sectors in Powys.
Full fibre
62%
Gigabit
62%
Superfast
79%
Postcodes
860
SY21 covers 860 postcodes across southern Powys with moderate connectivity. Gigabit networks extend to 61.9%, whilst fixed wireless serves 38.7%.
Broadband speeds in SY21
Share of SY21 premises by the fastest download speed available, averaged across all 860 postcodes in the district.
Superfast broadband reaches 78.5% of the area, lower than urban benchmarks but reasonable for Powys. Gigabit-capable networks serve 61.9% of postcodes. Real-world speeds show 61.9% of premises achieve 300 Mbps-plus, with 16.6% in the 30-300 Mbps tier. Fixed wireless availability at 38.7% provides a significant alternative where terrestrial fibre hasn't reached. Below-USO coverage affects 4.2%, warranting address-level verification. The 860-postcode district benefits from a mix of fibre and fixed wireless technologies. For residents in areas without gigabit, fixed wireless represents a genuine option for acceptable broadband speeds.
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
4%
Premises unable to get the 10 Mbps universal service minimum
Fixed wireless
39%
Premises that can use a fixed wireless access service
Broadband by sector
SY21 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 |
|---|---|---|---|---|
| SY21 0 | 199 | 57% | 21% | 21% |
| SY21 7 | 251 | 100% | 91% | 91% |
| SY21 8 | 237 | 76% | 59% | 59% |
| SY21 9 | 173 | 76% | 71% | 71% |
All SY21 0 postcodes (199)
All SY21 7 postcodes (251)
All SY21 8 postcodes (237)
All SY21 9 postcodes (173)
Best deals
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Living in Powys
SY21 sits between SY16's strengths and SY22's limitations. The combination of gigabit and fixed wireless options means most households have access to services; speeds vary materially by location.
Remote worker score
50/100
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
SY21 broadband FAQs
Is fixed wireless common in SY21?
Yes. 38.7% of postcodes have fixed wireless access, extending connectivity where fibre is absent.
What's the gigabit coverage?
61.9% of the 860 postcodes support gigabit. The remainder rely on fixed wireless or older networks.
Should I expect high speeds in SY21?
In most areas, yes. However, 16.6% of premises experience 30-300 Mbps, so location matters.
How many postcodes fall below USO coverage?
4.2%, which means checking individual addresses is prudent.
Neighbouring districts
Check your exact postcode
Every postcode in SY21 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