What does a PH42 postcode tell you?

That the address lies in the PH42 district of the PH (Perth) postcode area, and the place OS Open Names most often lists first for its postcodes is Highland. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 1 live postcode.

PH42 postcode district

PH42, in the PH (Perth) postcode area, has 1 live and 1 terminated postcodes in the ONS Postcode Directory of August 2026, and OS Open Names files 1 road under it.

postcode area	PH (Perth)
live postcodes	1
terminated postcodes	1
sectors	1
roads listed	1
companies registered	14
centroid	56.90186, -6.14273
directory release	2026-08

Postcodes and sectors

1 of the district's 2 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 56.90186, -6.14273, which locates the district, not a building.

sector	live	terminated
PH42 4	1	1

Companies registered in PH42

Companies House lists 14 companies with a registered office in PH42 (1 October 2026 snapshot).

Places OS Open Names lists for PH42

Highland
Scotland

Roads filed under PH42

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.

Bealach Clith

Check an address in PH42

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

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=PH42" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about PH42

What does a PH42 postcode tell you?: That the address lies in the PH42 district of the PH (Perth) postcode area, and the place OS Open Names most often lists first for its postcodes is Highland. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 1 live postcode.

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 PH42

PH3918.3 km
PH4021.8 km
PH4122.1 km
IV4523.7 km
PH3825.1 km
PH3626.9 km
IV4427.9 km
PA7532.2 km
IV4334.6 km
IV4938.4 km
PA7839.3 km
PH3739.6 km
Every district
How a British address is written
Check any address

distance between the districts' centroids

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