Which mobile network is best for the PO20 postcode district?

EE is the best mobile network for the PO20 district in Portsmouth, scoring 93/100 overall with 86% 5G and 100% 4G coverage.

Is there 5G coverage at PO20?

EE provides excellent 5G coverage in the PO20 area at 86%. This is a densely populated urban area, which benefits from high operator investment in 5G infrastructure.

What are the best phone deals near PO20?

Based on coverage for PO20, EE offers the best value combination of signal and deals. Current deals start from £35.00/month. Enter your full postcode on NetScan UK to see personalised results.

How does O2 compare to EE in Portsmouth?

O2 scores 87/100 in PO20, behind EE's 93/100. O2 achieves 74% 5G versus EE's 86%.

PO20 DISTRICT · PORTSMOUTH

Best mobile network in PO20 Portsmouth postcode district

Comparing EE, Vodafone, O2 and Three across 5G · 4G · 3G for the PO20 postcode district in Portsmouth.

RESULT · PO20 · PORTSMOUTH

Coverage for PO20 district

Portsmouth · Densely populated urban density area · PO postcode area

★ BEST OPERATOR

93/100

EE delivers the strongest coverage for the PO20 district in Portsmouth. Scored across 5G, 4G and 3G using the latest UK operator footprint data.

86%

100%

99%

Full ranking — PO20

Overall: 93/100

86%

100%

99%

Overall: 87/100

74%

100%

98%

Three

Overall: 86/100

73%

99%

Vodafone

Overall: 85/100

70%

100%

Coverage analysis — PO20

According to Ofcom's December 2024 Connected Nations report, EE leads the field in Portsmouth. In this densely populated urban area, EE achieves an overall coverage score of 93/100 — driven by excellent 5G coverage (86%) and rock-solid 4G at 100%. 5G and 4G scores are closely matched, reflecting a mature, stable network.

EE clearly leads O2 by 6 points overall. While O2 reaches 74% on 5G and 100% on 4G in Portsmouth, it falls short of EE's combined performance across all bands. Three and Vodafone round out the field at 86 and 85 respectively.

Best phone deals from EE

Once you've found the best network for your area, here are the top EE contracts available now.

Apple Smart Benefits

iPhone 16 128GB

£35.00/mo + £30 upfront

100GB data 24-month contract

View on EE →

Apple Apple TV+

iPhone 16 Pro 256GB

£52.00/mo + £30 upfront

Unlimited data 24-month contract

View on EE →

Apple 5G Stay Fast

iPhone 16 Plus 128GB

£40.00/mo + £30 upfront

250GB data 24-month contract

View on EE →

Apple Best for budget

iPhone 16e 128GB

£25.21/mo + £30 upfront

50GB data 24-month contract

View on EE →

Samsung Free upgrade @18mo

Galaxy S25 256GB

£42.00/mo + £30 upfront

Unlimited data 24-month contract

View on EE →

Samsung Galaxy AI

Galaxy S25 Ultra 256GB

£58.00/mo + £30 upfront

Unlimited data 24-month contract

View on EE →

Explore the Portsmouth area

View full coverage analysis for the Portsmouth (PO) area, or enter any UK postcode in the scanner above for a personalised result.

Coverage FAQ — PO20

Best network for PO20?

EE leads with 93/100 — driven by 86% 5G and 100% 4G in this densely populated urban part of Portsmouth.

Is 5G available in PO20?

EE provides excellent 5G coverage at 86%. O2 follows at 74%.

Which network has the best 4G?

EE leads 4G too at 100%. Reliable 4G is critical in densely populated urban areas.

Is Three worth considering?

Three scores 86/100 in PO20 (73% 5G, 99% 4G). It may suit certain tariff or price preferences despite trailing the top two.