M12 postcode district

Postcodes and sectors

506 of the district's 910 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 53.46441, -2.20193, which locates the district, not a building.

Companies registered in M12

Companies House lists 5,879 companies with a registered office in M12; 279 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 M12

• Manchester
• North West

Roads filed under M12

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.

• Abbotsbury Close
• Aden Close
• Adlington Street
• Aines Street
• Ainsdale Street
• Aked Close
• Albert Grove
• Alderman Square
• Alldis Close
• Ambrose Street
• Anthony Close
• Antilles Close
• Apollo Walk
• Appleby Avenue
• Apsley Grove
• Ardwick Green North
• Armitage Avenue
• Ashlar Drive
• Ashover Avenue
• Assisi Gardens
• Attlee Way
• Attwood Street
• Aviary Road
• Bainbridge Close
• Barnby Street
• Beastow Road
• Belgate Close
• Belle Vue Avenue
• Belle Vue Street
• Bellis Close
• Benbow Avenue
• Bennett Street
• Berigan Close
• Bertram Street
• Bevan Close
• Bickerdike Avenue
• Billing Avenue
• Birch Street
• Black Brook Close
• Blackett Street
• Blackwin Street
• Blakedown Walk
• Blakemore Walk
• Blakey Street
• Blind Lane
• Blucher Street
• Boundary Street
• Bowling Green Lane
• Bowmeadow Grange
• Bracewell Close
• Braley Street
• Bransfield Road
• Brick Kiln Road
• Bridgend Close
• Brinsop Square
• Britnall Avenue
• Brydon Avenue
• Burdett Way
• Burtree Street
• Butterwick Close

Check an address in M12

Check an address in M12

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

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=M12" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about M12

What does an M12 postcode tell you?

That the address lies in the M12 district of the M (Manchester) postcode area, and the place OS Open Names most often lists first for its postcodes is Manchester. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 506 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 M12

• M131.0 km
• M182.1 km
• M112.1 km
• M142.4 km
• M12.7 km
• M43.0 km
• M613.0 km
• M603.1 km
• M193.1 km
• M153.3 km
• M23.3 km
• M34.0 km
• Every district
• How a British address is written
• Check any address

distance between the districts' centroids