Portsmouth broadband coverage (PO)
Full-fibre, gigabit and superfast availability across every PO postcode district in South East England — plus business broadband and leased lines.
Strong coverage
Superfast (30Mb+)
94.3%
Ultrafast (300Mb+)
76.3%
Gigabit-capable
75.9%
Below USO (10Mb)
—
Check your exact PO postcode
Area figures average a whole postcode region — get the precise availability, full-fibre status and mobile signal for your address.
Broadband across the PO area
The PO postcode area covers Portsmouth and the surrounding South East England region, spanning 34 outward-code districts. Overall fixed-broadband provision across PO is strong: superfast reaches about 94.3% of premises and gigabit-capable connectivity is available to roughly 75.9%.
Availability is never uniform across a whole postcode area — city-centre PO districts are typically further ahead on full fibre than outlying towns and rural fringes. Use the district breakdown below to see how each PO outcode compares, then check an exact postcode for the definitive answer.
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PO districts compared
Each PO outward code ranked by size. Click a district for its full breakdown and a postcode-level check.
| District | Area | Superfast | Gigabit |
|---|---|---|---|
| PO21 | Arun | 98.9% | 55.5% |
| PO20 | Arun | 93.1% | 51.8% |
| PO7 | East Hampshire | 95.3% | 79% |
| PO19 | Chichester | 97.1% | 73% |
| PO9 | Chichester | 97.5% | 87.5% |
| PO30 | Isle of Wight | 87.3% | 67.2% |
| PO12 | Gosport | 99.6% | 92.2% |
| PO16 | Fareham | 98.3% | 89.1% |
| PO22 | Arun | 98.1% | 59.7% |
| PO33 | Isle of Wight | 93.5% | 78.5% |
| PO14 | Fareham | 97.8% | 90.4% |
| PO6 | Havant | 94.6% | 90.1% |
| PO8 | East Hampshire | 95.3% | 80.1% |
| PO1 | Portsmouth | 91.7% | 80% |
| PO13 | Fareham | 99.4% | 93.2% |
| PO2 | Portsmouth | 97.5% | 92.5% |
| PO4 | Portsmouth | 99.6% | 96.1% |
| PO18 | Arun | 82.4% | 41.8% |
| PO15 | Fareham | 94.6% | 85.2% |
| PO5 | Portsmouth | 97.6% | 90.2% |
| PO38 | Isle of Wight | 83.6% | 55.6% |
| PO10 | Chichester | 96.9% | 84.6% |
| PO36 | Isle of Wight | 94.7% | 79% |
| PO11 | Havant | 95.9% | 65.4% |
| PO31 | Isle of Wight | 97.1% | 92.2% |
| PO3 | Portsmouth | 94.5% | 91.9% |
| PO37 | Isle of Wight | 95.1% | 78.2% |
| PO17 | Fareham | 81.9% | 35.8% |
| PO40 | Isle of Wight | 98.1% | 76.4% |
| PO32 | Isle of Wight | 94.9% | 87% |
| PO35 | Isle of Wight | 94.4% | 72.1% |
| PO41 | Isle of Wight | 82.1% | 43.4% |
| PO34 | Isle of Wight | 96.5% | 80.8% |
| PO39 | Isle of Wight | 92.7% | 65.7% |
Business broadband & leased lines in Portsmouth
Connection Technologies arranges business broadband, full-fibre (FTTP) and leased lines right across the PO 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 Portsmouth
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 PO postcode area (Portsmouth)?
Can I get full-fibre or gigabit broadband in the PO postcode area (Portsmouth)?
How do I check broadband at my exact address in the PO postcode area (Portsmouth)?
Who provides business broadband in the PO postcode area (Portsmouth)?
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.