CF39 postcode district

Postcodes and sectors

558 of the district's 667 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 51.59950, -3.42587, which locates the district, not a building.

Companies registered in CF39

Companies House lists 722 companies with a registered office in CF39; none of them at an address 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 CF39

• Wales
• Rhondda Cynon Taf
• Porth
• Tonyrefail
• Hendreforgan
• Gilfach Goch
• Wattstown
• Pen-y-bont ar Ogwr
• Bridgend
• Coedely

Roads filed under CF39

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.

• Aber-Rhondda Road
• Abercerdin Road
• Aberllechau Road
• Adare Street
• Aldergrove Road
• Alfred Street
• America Place
• Argyle Street
• Ashfield Close
• Ash Street
• Aubrey Road
• Avondale Road
• Avon Terrace
• Bailey Street
• Bedw Close
• Bedw Farm Estate
• Bedw Street
• Beech Street
• Beech Wood Drive
• Belmont Terrace
• Bethania Hill
• Birchgrove Street
• Birch Wood Drive
• Bloss Terrace
• Bridge Street
• Britannia Street
• Bronheulwen
• Brook Street
• Bryn-Hedd
• Bryn Bedw
• Bryn Crydd
• Bryn Ffynon
• Bryngolau
• Bryngwyn Street
• Brynheulog Terrace
• Brynhy Fryd
• Bryn Rhedyn
• Bryn Terrace
• Caemawr Gardens
• Caemawr Road
• Cae Siriol
• Cambrian Avenue
• Capel Farm
• Carmel Close
• Catherine Crescent
• Cedar Way
• Cedar Wood Drive
• Cefn Bryn
• Cefn Road
• Celyn Isaf
• Cemetery Road
• Channel Avenue
• Chapel Terrace
• Charles Street
• Chevron Street
• Church Terrace
• Church Walk
• Cilgant Eirin
• Clifton Row
• Clos y Ffatri

Check an address in CF39

Check an address in CF39

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

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=CF39" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about CF39

What does a CF39 postcode tell you?

That the address lies in the CF39 district of the CF (Cardiff) postcode area, and the place OS Open Names most often lists first for its postcodes is Porth. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 558 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 CF39

• CF402.9 km
• CF376.3 km
• CF416.6 km
• CF436.7 km
• CF387.7 km
• CF727.9 km
• CF458.9 km
• CF4210.2 km
• CF3511.0 km
• CF4611.3 km
• CF3211.8 km
• CF1513.0 km
• Every district
• How a British address is written
• Check any address

distance between the districts' centroids