Gas LDZ Postcode Lookup
Find the Local Distribution Zone (LDZ) for any UK postcode. Instant results — no sign-up required.
Enter a UK postcode
Enter a full postcode (e.g. SW1A 1AA), outward code (SW1A), or postcode area (SW).
What is a Gas LDZ?
A Local Distribution Zone (LDZ) is one of 13 geographic regions that make up the UK gas distribution network. Each zone is operated by one of four Gas Distribution Network (GDN) companies: Cadent Gas, Northern Gas Networks, SGN, and Wales & West Utilities.
Your LDZ is important for business gas procurement because transportation charges — the cost of moving gas through the local pipe network to your meter — vary between zones. When a gas supplier quotes you a unit rate, part of that rate reflects the transportation cost for your specific LDZ.
Understanding your LDZ helps you verify that quotes are based on the correct transportation charges and that you are comparing like-for-like when switching suppliers.
Your LDZ is determined by your postcode area. In most cases, all premises within a postcode area share the same LDZ. Your exact LDZ can always be confirmed from your MPRN (Meter Point Reference Number), found on your gas bill.
Why your LDZ matters for business gas contracts
Transportation charges
Each LDZ has its own transportation tariff. Suppliers pass these costs on in your unit rate. A business in the NW LDZ may pay different transportation charges to an identical business in the SE LDZ.
Accurate quotes
Suppliers need your postcode (and therefore LDZ) to generate an accurate quote. Without it, they cannot calculate the correct transportation element of your gas price.
Bill validation
When validating a gas bill, checking that the LDZ on the bill matches your postcode is a quick way to spot billing errors or incorrect meter point data.
Multi-site portfolios
Businesses with premises in multiple LDZs may see different unit rates at each site. Understanding this helps you budget accurately and negotiate effectively.
All 13 UK Gas LDZ regions
The table below shows every LDZ, its operator, and the postcode areas it covers.
| LDZ | Name | Postcode areas |
|---|---|---|
| EA | East Anglia | CBCMCOIPNRPESS |
| EM | East Midlands | DEDNLELNNGS |
| LC | London (Central) | EECNNWSESWWWC |
| NE | North East | DHDLHGNESRTSYO |
| NO | Northern | BDHDHUHXLSWF |
| NT | North Thames | ALENHAHPLUMKSGUBWD |
| NW | North West | BBBLCACWFYLAMOLPRSKWAWN |
Frequently asked questions
Related resources
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