DD4
UK postcode district
Updated September 2026
District overview
- Postcode units
- 1,470
- Current units
- 1,155
- Coordinate coverage
- 100%
- Electoral wards
- 9
Coverage context
- Countries represented
- Scotland
- English regions represented
- S99999999
- Local authority codes
- 2
- Terminated postcode units
- 315
Postcode sectors in DD4
Choose a sector to browse its complete postcode-unit directory.
Fixed broadband coverage
The median Ofcom availability percentage across 1,146 current postcode units in this district. Each postcode is weighted equally, not by premises.
- Superfast, 30 Mbit/s+
- 100%
- Ultrafast, 100 Mbit/s+
- 100%
- Ultrafast, 300 Mbit/s+
- 100%
- Gigabit-capable
- 100%
- Unable to receive decent fixed or FWA broadband
- 0%
- Next Generation Access
- 100%
- Decent broadband available from fixed wireless
- 0%
1,088 postcode units had 100% superfast coverage, 1,051 had 100% gigabit-capable coverage, and 3 had at least some premises without decent fixed or fixed-wireless access.
Predicted coverage, not measured speeds. Check availability for your address with a provider. Postcode-level full-fibre figures are not published in this release.
Source: Ofcom Connected Nations Spring 2026, version 2026-01-v2. Contains Ofcom data licensed under the Open Government Licence v3.0.