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API Access

Access dataset files directly from scripts, code, or AI agents.

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Dataset Files

Each file has a stable URL (r-link) that you can use directly in scripts, apps, or AI agents. These URLs are permanent and safe to hardcode.

/logistics/postal-codes-lk/

├ .licensing-notes.md

https://datahub.io/logistics/postal-codes-lk/_r/-/.licensing-notes.md

├ README.md

https://datahub.io/logistics/postal-codes-lk/_r/-/README.md

└ datapackage.yml

https://datahub.io/logistics/postal-codes-lk/_r/-/datapackage.yml

Key Files

Start with these files — they give you everything you need to understand and access the dataset.

datapackage.yml— metadata & schema

https://datahub.io/logistics/postal-codes-lk/_r/-/datapackage.yml

README.md— documentation

https://datahub.io/logistics/postal-codes-lk/_r/-/README.md

Typical Usage

1. Fetch datapackage.yml to inspect schema and resources
2. Download data resources listed in datapackage.yml
3. Read README.md for full context

Data Files

Postal Codes Data Resource for Sri Lanka, LK

Field	Description	Title
country_code	ISO 3166-1 alpha-2 code for the country.	Country Code
postal_code	Postal code for the location.	Postal Code
place_name	Name of the city, town, or place.	Place Name
admin_name1	Primary administrative division (e.g., state, region).	Administrative Name 1
admin_code1	Code for the primary administrative division.	Administrative Code 1
admin_name2	Secondary administrative division (e.g., county, district).	Administrative Name 2
admin_code2	Code for the secondary administrative division.	Administrative Code 2
admin_name3	Tertiary administrative division (e.g., municipality, borough).	Administrative Name 3
admin_code3	Code for the tertiary administrative division.	Administrative Code 3
latitude	Latitude coordinate of the place.	Latitude
longitude	Longitude coordinate of the place.	Longitude
accuracy	Accuracy level of the latitude and longitude coordinates.	Accuracy
alternative_city_name	Alternative name(s) for the city or place.	Alternative City Name

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About

Last updated: 11 September 2026
Total rows: ...
Format: CSV
File size: 7.68 kB
Source: GeoNames postal code database -- Sri Lanka (LK)
License: Creative Commons Attribution 4.0 International

About this dataset

Sri Lanka (LK) — internal licensing notes

Source research, 2026-09-11 — tier-1 check done before falling back

Checked Sri Lanka Post (slpost.gov.lk, the official national postal operator) first via search — referenced as the authority but no bulk download page or open-data catalogue entry surfaced in this pass; not directly fetched/confirmed in this session.

A real community lead found, checked and NOT used as-is

github.com/slwdc/Postal-Codes — a community-compiled CSV (Postal_Codes.csv, 75,818 bytes), MIT-licensed repo. Checked directly: the repository's own README.md (per search result summary) states it is incomplete — roughly 200 postal codes missing, mostly from the Northern Province. The MIT licence covers the compiler's own repository, not a confirmed redistribution grant from Sri Lanka Post for the underlying government data — same reasoning already applied to India's GitHub mirror earlier in this project, except that mirror was a verified exact, complete republish of the official file; this one is a self-described incomplete compilation, not a verified 1:1 copy.

GeoNames — real fallback candidate, not yet evaluated in depth this pass

download.geonames.org/export/zip/LK.zip returns 200 — GeoNames does have LK coverage (not checked further in this pass; row count/admin structure not yet inspected). Per this project's standing rule, GeoNames is the fallback of last resort here, to be evaluated only after the official/community options above are exhausted or a build is actually commissioned — not defaulted to.

Verdict

Built 2026-09-11 — GeoNames fallback used as anticipated. 1,837 rows, 24/25 ISO 3166-2:LK districts covered (Kilinochchi has zero rows in the source — confirmed real, not a build error, and independently consistent with the rejected GitHub compilation's own disclosure of Northern Province gaps). admin_code1 (province) and admin_code2 (district) derived via verified NAME-based crosswalks against Wikipedia's ISO_3166-2:LK page — GeoNames' own admin codes are internal numbers/ abbreviations, not ISO. See scripts/build_postal_codes_product.py.

Published: git (datasets/lk/{datapackage.yml,scripts/}) and the samples bucket (100-row preview, postal-codes-samples key lk/lk.csv). Main R2 bucket publish blocked — datasets/lk/scripts/publish_r2.py --apply failed with AccessDenied on PutObject, the same session-wide 403/AccessDenied affecting every main-bucket write this session (confirmed independently on fr/fr.csv, pk/pk.csv). _meta/catalog.json not updated. datapackage.yml set to is_premium: true, premium_tier: B (single-source GeoNames normalisation, same shape as PK/KE/EE), real licenses/sources (was a placeholder "Multiple sources" link).