CF48 postcode district

Postcodes and sectors

753 of the district's 901 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 51.74163, -3.37159, which locates the district, not a building.

Companies registered in CF48

Companies House lists 1,107 companies with a registered office in CF48; 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 CF48

• Wales
• Merthyr Tudful
• Merthyr Tydfil
• Troedyrhiw
• Aberfan
• Pentrebach
• Abercanaid
• Ynysowen
• Merthyr Vale
• Pontsticill
• Upper Abercanaid
• Powys
• Caerffili
• Caerphilly
• Morlais Castle
• Winchfawr
• Llwyn-onn
• Rhondda Cynon Taf
• Nant-ddu
• Faenor
• Vaynor

Roads filed under CF48

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.

• Aberdare Road
• Aberfan Crescent
• Aberfan Fawr
• Aberfan Road
• Alberta Street
• Alexandra Place
• Alma Street
• Alma Terrace
• Alphonso Street
• Amelia Close
• Andrews Close
• Angus Street
• Anthony Grove
• Anthony Hill Court
• Archer Street
• Argoed Terrace
• Arthur Street
• Ash Grove
• Ash Road
• Azalea Park
• Balaclava Road
• Barracks Row
• Barrington Street
• Beacon Heights
• Beacons Court
• Beacons View
• Beechwood Avenue
• Beechwood Drive
• Bells Hill
• Berry Square
• Blaen Dowlais
• Blanche Street
• Bogey Road
• Brecon Rise
• Brewery Lane
• Bridge Street
• Bro-y-Ffrwd
• Broad Street
• Bryn-Seion Street
• Bryn Carwyn
• Bryn Clychau
• Bryngoleu
• Bryniau Road
• Bryntaf
• Bryntirion Street
• Brynwern Street
• Cae'r Wern
• Cae Deri
• Caeracca Villas
• Caerleon Grove
• Caernarvon Grove
• Calluna Close
• Canal Lock Close
• Canal Row
• Canal Side
• Canonbie Crescent
• Cardiff Road
• Cardiff Street
• Carew Grove
• Carlton Terrace

Check an address in CF48

Check an address in CF48

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

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=CF48" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about CF48

What does a CF48 postcode tell you?

That the address lies in the CF48 district of the CF (Cardiff) postcode area, and the place OS Open Names most often lists first for its postcodes is Merthyr Tydfil. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 753 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 CF48

• CF471.1 km
• CF446.5 km
• CF458.0 km
• NP228.5 km
• NP249.5 km
• CF819.8 km
• CF469.9 km
• CF4310.8 km
• NP2312.9 km
• CF4113.0 km
• CF4213.4 km
• CF8213.6 km
• Every district
• How a British address is written
• Check any address

distance between the districts' centroids