DH4 broadband and area guide
Ofcom coverage, connection speeds, house prices and local data for 934 postcodes across 4 sectors in Sunderland.
Full fibre
0%
Gigabit
91%
Superfast
97%
Postcodes
934
DH4 covers 934 postcodes. At 91% gigabit (cable), it ranks among County Durham's fastest-deployed codes alongside DH5. Below-10-Mbps postcodes: 1%.
Broadband speeds in DH4
Share of DH4 premises by the fastest download speed available, averaged across all 934 postcodes in the district.
Nine in ten postcodes (91%) reach cable gigabit networks across DH4's substantial 934-postcode footprint, an exceptional level reflecting concentrated urban investment. Superfast (30-300 Mbps) serves 5.9% of remaining postcodes, providing secondary coverage for dispersed premises. Below 10 Mbps: 1%, or roughly nine postcodes. Below-USO postcodes account for 0.1%, virtually negligible. Prolonged cable investment has achieved near-saturation coverage across DH4's large postcode base. Virtually all postcodes exceed superfast thresholds (30 Mbps minimum), positioning DH4 favourably against national averages. Cable infrastructure pervades DH4; speed exceptions cluster in scattered rural pockets. This 91% gigabit reach ranks DH4 among the top County Durham performers, nearly matched only by DH5's 91.1%.
Source: Ofcom Connected Nations. Percentages are district-wide averages of postcode-level availability, so rows may not sum to exactly 100%.
Connectivity in detail
Below 10 Mbps USO
<1%
Premises unable to get the 10 Mbps universal service minimum
Fixed wireless
0%
Premises that can use a fixed wireless access service
Broadband by sector
DH4 splits into 4 postcode sectors. Coverage and prices can differ street by street, so open a sector below to find your exact postcode.
| Sector | Postcodes | Superfast | Full fibre | Gigabit |
|---|---|---|---|---|
| DH4 4 | 265 | 97% | 0% | 88% |
| DH4 5 | 172 | 96% | 0% | 90% |
| DH4 6 | 278 | 96% | 0% | 90% |
| DH4 7 | 219 | 99% | 0% | 96% |
All DH4 4 postcodes (265)
All DH4 5 postcodes (172)
All DH4 6 postcodes (278)
All DH4 7 postcodes (219)
Best deals
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Living in Sunderland
Only 0.1% fall outside the Universal Service Obligation floor of 10 Mbps. DH4 shows near-universal speed adequacy across its 934 postcodes, supporting high-speed work and leisure use cases.
Remote worker score
55/100
Connectivity and amenities for home working
Family score
50/100
Schools, safety and family amenities
Value score
50/100
What you get for the local price level
DH4 broadband FAQs
Is DH4 the best-connected code in County Durham?
DH2 (89.2%) and DH5 (91.1%) sit marginally above DH4's 91%. All three are exceptional.
How many DH4 postcodes fall below 30 Mbps?
Only 1%, or roughly nine postcodes across 934.
Should I assume my DH4 postcode is gigabit-capable?
High probability-nine in ten. Confirm for specific addresses.
What's the USO situation in DH4?
One postcode in 1,000 falls below 10 Mbps. Virtually non-existent risk.
Neighbouring districts
Check your exact postcode
Every postcode in DH4 has its own page with broadband speeds, house prices, school ratings and crime stats. You can also compare providers for your address.
Data sources: Broadband data from Ofcom Connected Nations 2025 · House prices from HM Land Registry · Crime from Police.uk · See all data sources