CA12 postcode district
CA12, in the CA (Carlisle) postcode area, has 470 live and 94 terminated postcodes in the ONS Postcode Directory of August 2026, and OS Open Names files 135 roads under it.
| postcode area | CA (Carlisle) |
|---|---|
| live postcodes | 470 |
| terminated postcodes | 94 |
| sectors | 3 |
| roads listed | 135 |
| companies registered | 429 |
| centroid | 54.60262, -3.13487 |
| directory release | 2026-08 |
Postcodes and sectors
470 of the district's 564 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 54.60262, -3.13487, which locates the district, not a building.
| sector | live | terminated |
|---|---|---|
| CA12 4 | 233 | 30 |
| CA12 5 | 235 | 46 |
| CA12 9 | 2 | 18 |
Companies registered in CA12
Companies House lists 429 companies with a registered office in CA12; 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 CA12
- North West
- Cumberland
- Keswick
- Threlkeld
- Westmorland and Furness
- Braithwaite
- Portinscale
- Bassenthwaite
- Millbeck
- Legburthwaite
- Rosthwaite
- Thornthwaite
- Applethwaite
- Seatoller
- Kilnhill
- Thrushwood
- Ormathwaite
- High Side
- Scarness
- Scales
- Castlerigg
- Wythburn
- How
- Beck Wythop
Roads filed under CA12
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 Street
- Ambleside Road
- Ashcroft Close
- Ashtree Avenue
- Back Lane
- Bank Street
- Beech Croft
- Bell Close
- Birch Row
- Blease Road
- Blencathra Street
- Borrowdale Road
- Brackenrigg Drive
- Brandlehow Crescent
- Brewery Lane
- Bridge Terrace
- Brundholme Gardens
- Brundholme Road
- Buckholme Lonning
- Butts Meadow
- Calvert Way
- Carding Mill Lane
- Castlehead Close
- Castle Lane
- Castlerigg Brow
- Chestnut Hill
- Chestnut Park
- Church Lane
- Church Street
- Coledale Gardens
- Coleridge Court
- Croft Terrace
- Cross Street
- Crosthwaite Gardens
- Crosthwaite Road
- Crow Park Road
- Derwent Bank Crescent
- Derwent Close
- Derwent Street
- Eleventrees
- Elliot Park
- Eskin Street
- Fenton
- Field Lane
- Fieldside Close
- Forge Close
- Forge Lane
- Gateys Yard
- George Street
- Ghyll Bank
- Glebe Close
- Grange Park
- Green Lane
- Greta Side
- Greta Street
- Grizedale Close
- Halls Mead
- Heads Lane
- Heads Mount
- Heads Road
all 135 roads
- Helvellyn Street
- High Hill
- High Portinscale
- High Street
- Honister Pass
- Howe Lane
- How Lane
- Kings Head Court
- Lakeland Park
- Lake Road
- Larch Grove
- Latrigg Close
- Launchy Gill Nature Trail
- Leonard Street
- Limepots Road
- Longcroft
- Lonscale View
- Luptons Court
- Main Street
- Manesty View
- Manor Park
- Miners Way
- Museum Square
- Myers Street
- Nest Brow
- Netherfield
- Newlands Close
- New street
- Otley Road
- Pack Horse Court
- Pass of Dunmail Raise
- Penrith Road
- Poplar Street
- Ratcliffe Place
- Raven Lane
- Rickerby Lane
- Rogerfield
- Shorley Lane
- Skiddaw Street
- Southey Street
- Spoonygreen Lane
- Spring Close
- Springs Garth
- Springs Road
- Stanah Lane
- Standish Street
- Stanger Street
- Station Avenue
- Station Road
- Station Street
- St Herbert Street
- St John's Street
- Stoneacre Lane
- Striding Edge Court
- The Crescent
- The Headlands
- The Heads
- The Hopes
- The Paddock
- The Rake
- The Seams
- Tithebarn Street
- Trinity Way
- Vendace Court
- Vicarage Hill
- Victoria Street
- Whinlatter Pass
- Windebrowe Avenue
- Wordsworth Street
- A66
- A591
- A5271
- B5289
- B5291
- B5322
Check an address in CA12
The same road list through the API, from the outward code alone:
curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=CA12" \ -H "Authorization: Bearer $SPAW_KEY"
Common questions about CA12
- What does a CA12 postcode tell you?
- That the address lies in the CA12 district of the CA (Carlisle) postcode area, and the place OS Open Names most often lists first for its postcodes is Keswick. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 470 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 CA12
- CA1316.3 km
- LA2222.0 km
- CA2623.3 km
- CA1123.6 km
- CA723.8 km
- CA2325.2 km
- CA1525.4 km
- CA1426.2 km
- CA2526.3 km
- LA2126.9 km
- CA2428.1 km
- CA1928.9 km
- Every district
- How a British address is written
- Check any address
distance between the districts' centroids
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