SO21 broadband coverage — Basingstoke and Deane
Full-fibre, gigabit and superfast broadband availability across the SO21 postcode district, plus business broadband and leased-line options for Basingstoke and Deane.
Mixed coverage
Superfast (30Mb+)
77.9%
Ultrafast (300Mb+)
25.7%
Gigabit-capable
25.7%
Below USO (10Mb)
0.8%
Check broadband at your exact SO21 postcode
District figures are an average — get the precise availability, full-fibre status and mobile signal for your address.
Broadband in SO21
Broadband availability in the SO21 postcode district (Basingstoke and Deane) is Mixed — superfast is available to many but not all premises. Across the 732 postcodes Ofcom measures in SO21, superfast broadband (30 Mbit/s or faster) reaches 77.9% of premises and gigabit-capable lines are available to 25.7%.
Around 0.8% of premises in SO21 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.
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Sample postcodes in SO21
| Postcode | Superfast | Gigabit |
|---|---|---|
| SO21 1AA | 100% | 0% |
| SO21 1AB | 0% | 0% |
| SO21 1AD | 50% | 50% |
| SO21 1AE | 0% | 0% |
| SO21 1AF | 75% | 75% |
| SO21 1AG | 50% | 50% |
| SO21 1AH | 100% | 100% |
| SO21 1AJ | 100% | 100% |
| SO21 1AL | 100% | 100% |
| SO21 1AN | 66.7% | 0% |
Business broadband & leased lines in Basingstoke and Deane
Whether the SO21 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 SO21
Free, no obligation — full fibre, leased line or FTTC, matched to what's actually available at your postcode.
Nearby SO districts
See all Southampton (SO) broadband coverage ›
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Frequently asked questions
What broadband speeds are available in the SO21 area (Basingstoke and Deane)?
Can I get full-fibre or gigabit broadband in the SO21 area (Basingstoke and Deane)?
How do I check broadband at my exact address in the SO21 area (Basingstoke and Deane)?
Who provides business broadband in the SO21 area (Basingstoke and Deane)?
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.