NN18 postcode district

Postcodes and sectors

658 of the district's 775 postcodes are live in the ONS Postcode Directory of August 2026. A postcode directory says whether a code is in use, never who is there. The live postcodes centre on 52.47791, -0.71247, which locates the district, not a building.

Companies registered in NN18

Companies House lists 2,178 companies with a registered office in NN18; 274 of them at addresses shared by 25 or more companies (1 October 2026 snapshot). 25 is the count at which the address lookup reports a company cluster.

Places OS Open Names lists for NN18

• North Northamptonshire
• East Midlands
• Corby
• Little Oakley

Roads filed under NN18

Named roads first, then numbered ones. A road is filed under one district even where it runs through several, so a street missing here may be listed under a neighbouring district — which is why the address lookup never calls a British street absent. Great Britain has no open register of buildings, so a listed road never means a building on it exists.

• Acorn Way
• Aintree Road
• Albany Gardens
• Alberta Close
• Althorp Place
• Anne Street
• Applegarth Close
• Arden Close
• Arundel Walk
• Ashurst Crescent
• Ayr Close
• Balcombe Place
• Balmoral
• Baltic Close
• Bamburg Close
• Bampton Court
• Bangrave Road South
• Bankside
• Barnard
• Barn Close
• Barnsley Square
• Barth Close
• Bartlett Close
• Barton Square
• Beanfield Avenue
• Beardsley Court
• Bede Close
• Beeston Place
• Bell Court
• Belvoir Close
• Bennett Road
• Bentley Walk
• Bergen Walk
• Berneshaw Close
• Bessemer Grove
• Bestwood Green
• Beverley Walk
• Bewick Court
• Bexhill Walk
• Bideford Square
• Bies Close
• Binbrook Walk
• Bingham Walk
• Birch Avenue
• Birling Place
• Bishops Way
• Blackbird Road
• Blackmoor Avenue
• Blake Road
• Blandford Court
• Blenheim Walk
• Bluebell Close
• Blyton Court
• Boden Close
• Bodiam Place
• Bognor Road
• Bonington Walk
• Boston Close
• Boughton Close
• Boughton Road

Check an address in NN18

Check an address in NN18

The same road list through the API, from the outward code alone:

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=NN18" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about NN18

What does an NN18 postcode tell you?

That the address lies in the NN18 district of the NN (Northampton) postcode area, and the place OS Open Names most often lists first for its postcodes is Corby. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 658 live postcodes.

Where the counts come from

• ons-postcode-directory · version 2026-08 · Contains ONS, OS and Royal Mail data © Crown copyright and database right 2026, Open Government Licence v3.0. Northern Ireland postcodes are excluded: their reuse needs a Land & Property Services licence.
• os-open-names · version 2026-11-01 · Contains OS data © Crown copyright and database right 2026, Open Government Licence v3.0.
• uk-companies-house · version 2026-10-01 · Companies House free company data product, Open Government Licence v3.0

What each figure means, and what a district page never says, is set out in Reading a British postcode district page; the glossary defines a postcode district, a postcode area, a postcode directory and a street register.

Data synced on 2026-11-01: the newest version among the datasets listed above.

Districts nearest NN18

• NN173.4 km
• NN147.4 km
• NN168.1 km
• NN1510.6 km
• LE1612.6 km
• NN917.8 km
• PE818.2 km
• NN819.4 km
• LE1519.9 km
• NN1022.0 km
• NN623.0 km
• NN2924.7 km
• Every district
• How a British address is written
• Check any address

distance between the districts' centroids