AL3 broadband and area guide
Ofcom coverage, connection speeds, house prices and local data for 950 postcodes across 5 sectors in St Albans.
Gigabit
75%
Superfast
91%
Postcodes
950
AL3 in Central Bedfordshire covers 950 postcodes with solid gigabit reach at 75.5%, though 1.9% below 10 Mbps hint at infrastructure gaps.
Broadband speeds in AL3
Share of AL3 premises by the fastest download speed available, averaged across all 950 postcodes in the district.
AL3 shows strong overall infrastructure with notable pockets of variation. Superfast coverage reaches 90.9% of postcodes, a solid figure. Gigabit availability is substantial at 75.5%, delivering high speeds to three-quarters of addresses. The speed profile breaks as: 75.5% at gigabit speeds (300 Mbps and above), 15.4% in the 30 to 300 Mbps range, and 1.9% below 10 Mbps. Below universal service obligation postcodes are marginal at 0.1%. The 1.9% below-10Mbps minority is unusual within an otherwise well-served code, indicating that most areas have received investment while scattered addresses still rely on older copper or wireless connections. AL3 offers solid connectivity for most residents, though checking individual postcodes remains advisable.
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
0%
Premises that can use a fixed wireless access service
Broadband by sector
AL3 splits into 5 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 |
|---|---|---|---|---|
| AL3 4 | 185 | 98% | TBC | 93% |
| AL3 5 | 230 | 99% | TBC | 94% |
| AL3 6 | 162 | 85% | TBC | 75% |
| AL3 7 | 183 | 91% | TBC | 82% |
| AL3 8 | 190 | 80% | TBC | 28% |
All AL3 4 postcodes (185)
All AL3 5 postcodes (230)
All AL3 6 postcodes (162)
All AL3 7 postcodes (183)
All AL3 8 postcodes (190)
Best deals
Compare broadband deals in AL3
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Living in St Albans
For most of AL3, speeds are sufficient for streaming and remote work. Verify your specific address if the 2% below-10Mbps minority is a concern.
Remote worker score
54/100
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
AL3 broadband FAQs
What's the below-10Mbps rate in AL3?
1.9% of postcodes, a small but meaningful minority.
Is three-quarters of AL3 really gigabit-enabled?
Yes. 75.5% of postcodes qualify for gigabit speeds.
Where does the remaining quarter of AL3 stand?
15.4% occupy the 30 to 300 Mbps tier, and 1.9% below 10 Mbps.
Should I check my specific AL3 postcode before moving?
Advisable. While most are well-served, 1.9% below 10 Mbps means risk exists for certain addresses.
Neighbouring districts
Check your exact postcode
Every postcode in AL3 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