Swindon broadband coverage (SN)
Full-fibre, gigabit and superfast availability across every SN postcode district in South West England — plus business broadband and leased lines.
Strong coverage
Superfast (30Mb+)
86.5%
Ultrafast (300Mb+)
62%
Gigabit-capable
61.4%
Below USO (10Mb)
—
Check your exact SN postcode
Area figures average a whole postcode region — get the precise availability, full-fibre status and mobile signal for your address.
Broadband across the SN area
The SN postcode area covers Swindon and the surrounding South West England region, spanning 19 outward-code districts. Overall fixed-broadband provision across SN is strong: superfast reaches about 86.5% of premises and gigabit-capable connectivity is available to roughly 61.4%.
Availability is never uniform across a whole postcode area — city-centre SN districts are typically further ahead on full fibre than outlying towns and rural fringes. Use the district breakdown below to see how each SN outcode compares, then check an exact postcode for the definitive answer.
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SN districts compared
Each SN outward code ranked by size. Click a district for its full breakdown and a postcode-level check.
| District | Area | Superfast | Gigabit |
|---|---|---|---|
| SN3 | Swindon | 96.4% | 94.6% |
| SN15 | Wiltshire | 91.8% | 62% |
| SN10 | Wiltshire | 91.5% | 40.3% |
| SN14 | South Gloucestershire | 89.9% | 64.1% |
| SN8 | Swindon | 82.5% | 31.6% |
| SN5 | Swindon | 96.8% | 91.6% |
| SN2 | Swindon | 99.2% | 98.2% |
| SN25 | Swindon | 98% | 96.6% |
| SN12 | Wiltshire | 92.4% | 60.4% |
| SN4 | Swindon | 87.8% | 79.3% |
| SN11 | Wiltshire | 91.4% | 68.8% |
| SN1 | Swindon | 94.4% | 89.5% |
| SN13 | Wiltshire | 87.1% | 51.2% |
| SN6 | Cotswold | 88.4% | 48.2% |
| SN7 | Vale of White Horse | 93% | 73.4% |
| SN16 | Cotswold | 93.3% | 48.4% |
| SN9 | Wiltshire | 85.3% | 20.8% |
| SN26 | Swindon | 84.1% | 47.3% |
| SN38 | Swindon | 0% | 0% |
Business broadband & leased lines in Swindon
Connection Technologies arranges business broadband, full-fibre (FTTP) and leased lines right across the SN area. Where gigabit full fibre is live we quote ultrafast symmetric connections; everywhere else a leased line still guarantees the speed and SLA your business needs.
Get a business broadband quote in Swindon
Free and no obligation — matched to what's actually available at your postcode.
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Frequently asked questions
What broadband speeds are available in the SN postcode area (Swindon)?
Can I get full-fibre or gigabit broadband in the SN postcode area (Swindon)?
How do I check broadband at my exact address in the SN postcode area (Swindon)?
Who provides business broadband in the SN postcode area (Swindon)?
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.