Broadband & Mobile Availability for Portsmouth
Official Broadband and Mobile Statistics for 2024
Ultrafast (Full Fibre) access is good and slightly ahead of the 70% national rate, with Portsmouth achieving 72% connectivity. 5G rollout in Portsmouth is ahead of the national average, with 65.44% geographic coverage achieved (UK average 62%) (Sep 2025).
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Broadband Network Coverage for Portsmouth
| Broadband Type | Availability | Avg Download Speed | Avg Upload Speed |
|---|---|---|---|
Ultrafast (Above 300 Mbit/s) | 72% | 1044 Mbps | 596 Mbps |
Superfast (Below 100 Mbit/s) | 26.5% | 65 Mbps | 22.2 Mbps |
Standard (Below 30 Mbit/s) | 1.5% | 17.5 Mbps | 1.6 Mbps |
Below USO (Below 10 Mbit/s) | 0.5% | 6.3 Mbps | 1 Mbps |
Source: Ofcom Connected Nations data, (July 2024). Some data may be overlapping or lacking accuracy
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Mobile Network Coverage & Non-Spots
Future-Ready Signal
3.4% above UK average
This shows the percentage of land area covered by at least one 5G network. The score of 65.44% is above the national average (62%), indicating strong investment and future readiness.
Reliable 4G Coverage
4.0% above UK average
This critical score shows the percentage of Portsmouth's land area where all four major networks provide a dependable 4G signal. A result of 100% confirms near-universal coverage with minimal mobile ‘not-spot‘ risk.
Basic 3G Safety Net
98.2% below UK average
This indicates the reliability of the basic signal across the entire region (as of July 2024). At 0.91%, the safety net for basic calls shows some gaps.
- 3G is being phased out by most operators, making its coverage minimal and its use declining. Presence seems to be limited in rural areas.
- Coverage varies significantly, with rural areas having much lower 4G and 5G availability than urban areas.
- The percentage of 5G connections is growing rapidly, while the percentage of 4G connections is decreasing and overtaken more often.