PH18 postcode district
PH18, in the PH (Perth) postcode area, has 46 live and 3 terminated postcodes in the ONS Postcode Directory of August 2026, and OS Open Names files 17 roads under it.
| postcode area | PH (Perth) |
|---|---|
| live postcodes | 46 |
| terminated postcodes | 3 |
| sectors | 1 |
| roads listed | 17 |
| companies registered | 32 |
| centroid | 56.77328, -3.89051 |
| directory release | 2026-08 |
Postcodes and sectors
46 of the district's 49 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 56.77328, -3.89051, which locates the district, not a building.
| sector | live | terminated |
|---|---|---|
| PH18 5 | 46 | 3 |
Companies registered in PH18
Companies House lists 32 companies with a registered office in PH18 (1 October 2026 snapshot).
Places OS Open Names lists for PH18
- Perth and Kinross
- Scotland
- Blair Atholl
- Baluain
- Calvine
- Struan
- Trinafour
- Old Struan
Roads filed under PH18
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.
- Blackwood Place
- Errochty Walk
- Ford Road
- General Wade's Military Road
- Glen Tilt Trail
- Golf Course Road
- Invertilt Road
- Rathad nan Caoirneach
- St Adamnan Road
- St Andrew's Crescent
- The Lane
- The Square
- The Terrace
- Tulloch Road
- Wade's Bridge Road
- B847
- B8079
Check an address in PH18
The same road list through the API, from the outward code alone:
curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=PH18" \ -H "Authorization: Bearer $SPAW_KEY"
Common questions about PH18
- What does a PH18 postcode tell you?
- That the address lies in the PH18 district of the PH (Perth) postcode area, and the place OS Open Names most often lists first for its postcodes is Blair Atholl. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 46 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 PH18
- PH169.0 km
- PH918.3 km
- PH1518.5 km
- PH1928.0 km
- PH829.4 km
- PH2035.1 km
- PH2136.2 km
- PH1037.4 km
- PH1142.8 km
- FK2143.1 km
- PH744.7 km
- PH645.1 km
- Every district
- How a British address is written
- Check any address
distance between the districts' centroids
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