NP4 postcode district

Postcodes and sectors

1,371 of the district's 2,751 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 51.71963, -3.04724, which locates the district, not a building.

Companies registered in NP4

Companies House lists 1,685 companies with a registered office in NP4; 192 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 NP4

• Wales
• Torfaen
• Pontypool
• Pont-y-pŵl
• Abersychan
• Blaenavon
• Sir Fynwy
• Monmouthshire
• Penperlleni
• Little Mill
• Penyrheol
• Cwmavon
• Garn-yr-erw
• Coed-y-paen
• Glascoed
• British
• Croes y pant
• Llanvihangel Pontymoel

Roads filed under NP4

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.

• Abergavenny Road
• Acorn Close
• Ael-y-Bryn
• Afon Close
• Afon Llwyd Terrace
• Albert Road
• Albion Road
• Alder Close
• Alexandra Road
• Allgood Avenue
• Alma Place
• Alma Street
• Ambleside
• Ambrose Way
• Ambryn Road
• Anne Street
• Arcadia Way
• Ash Grove
• Ashgrove Close
• Asquith Street
• Austin Road
• Avalon Court
• Avalon Gardens
• Avalon Place
• Avondale Road
• Avon Road
• Bailey Crescent
• Bailey Street
• Bakery Close
• Balance Road
• Barn Close
• Becws-y-Clos
• Beeches Road
• Beech Lane
• Beech Road
• Beechwood Walk
• Bellevue Close
• Bell Lane
• Berkeley Crescent
• Berthin Road
• Berthon Road
• Bethel Court
• Bethel Lane
• Biorenge Terrace
• Black Path
• Blaendare Farm Lane
• Blaendare Road
• Blodwen Road
• Blodwen Way
• Bluett's Lane
• Bluett's Road
• Booth's Lane
• Boot Lane
• Bridge Street
• Brights Lane
• British Road
• British School Close
• Broad Street
• Broadway
• Bryn-Welon Close

Check an address in NP4

Check an address in NP4

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

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=NP4" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about NP4

What does an NP4 postcode tell you?

That the address lies in the NP4 district of the NP (Newport) postcode area, and the place OS Open Names most often lists first for its postcodes is Pontypool. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 1,371 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 NP4

• NP136.7 km
• NP447.7 km
• NP1110.3 km
• NP1511.1 km
• NP1211.8 km
• NP712.5 km
• NP2312.7 km
• NP2413.2 km
• CF8113.7 km
• NP1814.3 km
• NP2014.7 km
• CF8215.2 km
• Every district
• How a British address is written
• Check any address

distance between the districts' centroids