L21 broadband and area guide
Ofcom coverage, connection speeds, house prices and local data for 567 postcodes across 10 sectors in Sefton.
Full fibre
97%
Gigabit
97%
Superfast
99%
Postcodes
567
L21 covers 567 postcodes in Sefton with full fibre at 97.1% and superfast coverage of 98.8%. Gigabit services are nearly universal, with minimal below-Ofcom provision.
Broadband speeds in L21
Share of L21 premises by the fastest download speed available, averaged across all 567 postcodes in the district.
Full fibre-to-the-premises infrastructure has achieved near-total penetration in L21: 97.1% of postcodes support fibre, enabling gigabit services at the same rate. Superfast coverage reaches 98.8%, affecting all but seven postcodes. Speed distribution concentrates in the high-performance tiers: 97.1% of premises enjoy 300+ Mbps fibre gigabit stability, with just 1.7% in the moderate 30-300 Mbps band. Only 0.2% fall slightly short of Universal Service Obligation compliance, a minor exception. Across Sefton, L21 ranks among the most thoroughly fibre-equipped postcodes, making property search here straightforward from a connectivity standpoint.
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
L21 splits into 10 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 |
|---|---|---|---|---|
| L21 0 | 72 | 99% | 99% | 99% |
| L21 1 | 85 | 98% | 98% | 98% |
| L21 2 | 26 | 100% | 96% | 96% |
| L21 3 | 23 | 94% | 89% | 89% |
| L21 4 | 39 | 95% | 92% | 92% |
| L21 5 | 38 | 100% | 100% | 100% |
| L21 6 | 23 | 100% | 97% | 97% |
| L21 7 | 79 | 100% | 98% | 98% |
| L21 8 | 90 | 100% | 97% | 97% |
| L21 9 | 92 | 100% | 99% | 99% |
All L21 0 postcodes (72)
All L21 1 postcodes (85)
All L21 2 postcodes (26)
All L21 3 postcodes (23)
All L21 4 postcodes (39)
All L21 5 postcodes (38)
All L21 6 postcodes (23)
All L21 7 postcodes (79)
All L21 8 postcodes (90)
All L21 9 postcodes (92)
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Living in Sefton
L21's near-complete fibre deployment and overwhelming gigabit availability make it reliable for any household type seeking consistent, future-proof connectivity.
Crime per month
1
Average recorded crimes per local statistical area
Remote worker score
99/100
Connectivity and amenities for home working
Family score
80/100
Schools, safety and family amenities
Value score
50/100
What you get for the local price level
L21 broadband FAQs
Is L21's fibre deployment as complete as L20's?
No. L21's full fibre penetration significantly exceeds L20, showing Sefton is more thoroughly connected than central Liverpool areas.
How many postcodes in L21 lack gigabit fibre?
2.8% sit outside gigabit, splitting into moderate 30-300 Mbps (1.7%) and sub-USO (0.2%).
Are the postcodes not on gigabit fibre problematic?
No. Even moderate-band addresses support video calls and streaming. Sub-USO postcodes warrant investigation, though rare.
Does L21 offer better connectivity than neighbouring Liverpool postcodes?
Yes. L21's 97.1% fibre surpasses most Liverpool codes; only Knowsley postcodes exceed it.
Neighbouring districts
Check your exact postcode
Every postcode in L21 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