CF23 0 postcode sector in the CF23 district

CF23 0 is a sector of the CF23 district: every postcode that starts CF23 0. It has 24 postcodes in use, 24 of them large-user postcodes. A large-user postcode is one Royal Mail gives to a single address that gets a lot of mail.

Not sure what a sector is? UK postcode format explained.

Every postcode in the CF23 0 sector, and which are new since 2020

Map of every postcode in the CF23 0 sector, by new since 2020 Of the 24 postcodes in the CF23 0 sector that ONS places, 11 are new since 2020 and 13 were in use before 2020. One group of new postcodes is outlined: 11 new postcodes since 2020. Places named: Trowbridge. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. CF23 0JW: new since 2020 Trowbridge 11 new postcodes since 2020, outlined: this goes to CF23 0NB, the newest of them11 new postcodes since 2020 Map of every postcode in the CF23 0 sector, by new since 2020 Of the 24 postcodes in the CF23 0 sector that ONS places, 11 are new since 2020 and 13 were in use before 2020. One group of new postcodes is outlined: 11 new postcodes since 2020. Places named: Trowbridge. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. Trowbridge 11 new postcodes since 2020, outlined: this goes to CF23 0NB, the newest of them11 new postcodes since 2020
  • New since 2020: 11
  • In use before 2020: 13
  • Outline: where 5 or more new postcodes since 2020 lie together

Of the 24 postcodes in the CF23 0 sector that ONS places, 11 are new since 2020 and 13 were in use before 2020.

Each mark is a postcode's centre point as ONS gives it, not a building. Press one to see its postcode and open its page. New since 2020 means it came into use in January 2020 or later. A dashed outline shows where 5 or more lie within 200 metres of each other. It is not a boundary, and no boundary is drawn. Where marks overlap, the one first in the key is drawn; the counts include every postcode. Names in italics are council wards: we hold no town or village names here.

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026, the centre point of each postcode; when each came into use: the same directory; roads, rivers and built-up areas: Contains OS data © Crown copyright and database right 2026. Drawn by us. Street map: Ordnance Survey, OS Open Zoomstack, Open Government Licence v3.0, drawn with MapLibre. How we use them

The 5 newest postcodes

CF23 0NBJune 2026CF23 0NAMay 2026CF23 0LGJanuary 2025CF23 0LRJuly 2024CF23 0LPMay 2024

Where the new postcodes lie together

  • 11 new postcodes since 2020, outlined on the map. CF23 0NB, is the newest of them.

Postcodes in CF23 0

Pick a postcode to see its council and MP, broadband, flood risk, what homes sell for, council tax, the nearest schools and stations, and crime around it.

CF23 0ASCF23 0BPCF23 0DBCF23 0DSCF23 0DTCF23 0ESCF23 0FHCF23 0FPCF23 0FQCF23 0FRCF23 0GPCF23 0GUCF23 0HBCF23 0JWCF23 0LECF23 0LGCF23 0LHCF23 0LJCF23 0LNCF23 0LPCF23 0LQCF23 0LRCF23 0NACF23 0NB

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026. Postcodes that have ended are not listed. See all our data sources

What council am I in? The council, borough or local authority for a postcode, and the county council where there is one. What ward am I in? The ward for a postcode, with its council, constituency and parish.

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