DT3 broadband and area guide
Ofcom coverage, connection speeds, house prices and local data for 695 postcodes across 3 sectors in Dorset.
Full fibre
0%
Gigabit
68%
Superfast
96%
Postcodes
695
DT3 covers 695 Dorset postcodes with 68.4% gigabit availability and 27.8% in the mid-range 30-300 Mbps band. It is a mixed-infrastructure postal district.
Broadband speeds in DT3
Share of DT3 premises by the fastest download speed available, averaged across all 695 postcodes in the district.
DT3 covers 695 Dorset postcodes and sits between Dorset's strong codes and weakest tier. Gigabit reaches 68.4%, leaving nearly one-third of postcodes without gigabit access. The 27.8% in the 30-300 Mbps band is substantial, representing roughly 193 postcodes dependent on mid-range speeds as their primary tier. Superfast is 96.2%, a respectable figure for the postcode. Below 10 Mbps is 1.8%, affecting roughly 13 postcodes with potential challenges. Below USO is 0.2%, negligible. Wireless coverage is absent, suggesting postcodes without gigabit have accepted slower terrestrial speeds rather than upgrading via wireless routes or other alternatives. Across 695 postcodes, speed outcomes spread widely between gigabit and mid-range tiers. DT3 is neither strong nor weak but visibly split between these two infrastructure tiers.
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
DT3 splits into 3 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 |
|---|---|---|---|---|
| DT3 4 | 201 | 90% | 0% | 54% |
| DT3 5 | 238 | 98% | 0% | 76% |
| DT3 6 | 256 | 99% | 0% | 72% |
All DT3 4 postcodes (201)
All DT3 5 postcodes (238)
All DT3 6 postcodes (256)
Best deals
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Living in Dorset
DT3 is neither strong nor weak but visibly split between gigabit and mid-range infrastructure.
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
DT3 broadband FAQs
Is 68.4% gigabit adequate?
It is below most other Dorset codes, but still the majority.
Why would a household in DT3 expect mixed speeds?
Gigabit is the norm for some postcodes; mid-range for others. Infrastructure is divided.
How does DT3 compare to DT2?
DT3 is stronger. DT3 requires postcode checking.
Would you prioritise postcodes in DT3 or DT1?
DT1 is safer. DT3 requires postcode checking.
Neighbouring districts
Check your exact postcode
Every postcode in DT3 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