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CC0 1.0 Universal (public domain) — LJPc-solutions postal codes and coordinates license

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API Access

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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-nl/

├ .licensing-notes.md

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

├ .migration-notes.md

https://datahub.io/logistics/postal-codes-nl/_r/-/.migration-notes.md

├ ATTRIBUTION.txt

https://datahub.io/logistics/postal-codes-nl/_r/-/ATTRIBUTION.txt

├ README.md

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

└ datapackage.yaml

https://datahub.io/logistics/postal-codes-nl/_r/-/datapackage.yaml

Key Files

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

datapackage.yaml— metadata & schema

https://datahub.io/logistics/postal-codes-nl/_r/-/datapackage.yaml

README.md— documentation

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

Typical Usage

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

Data Files

postal-codes-nl-sample

Field	Type	Description	Constraints	Title
country_code	string	ISO 3166-1 alpha-2 country code — always NL	{ "pattern": "^NL$", "required": true }	Country Code
postal_code	string	Dutch postal code, format 'NNNNAA' (4 digits + 2 letters)	{ "pattern": "^[0-9]{4}[A-Z]{2}$", "required": true }	Postal Code
place_name	string	Locality (woonplaats) served by the postal code		Place Name
admin_name1	string	Province (provincie)		Administrative Name 1
admin_code1	string	ISO 3166-2:NL province code, prefix stripped (e.g. NH, ZH)		Administrative Code 1
admin_name2	string	Municipality (gemeente)		Administrative Name 2
admin_code2	string	Reserved — no municipality code in the source; always blank		Administrative Code 2
admin_name3	string	Locality (woonplaats) — the third administrative tier		Administrative Name 3
admin_code3	string	Reserved — always blank		Administrative Code 3
latitude	number	Latitude, decimal degrees (WGS84)		Latitude
longitude	number	Longitude, decimal degrees (WGS84)		Longitude
accuracy	string	Coordinate precision tier — BLOCK (postcode-block level)		Accuracy
alternative_city_name	string	Not available for this dataset — always blank		Alternative City Name

Download

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About

Last updated: 11 October 2026
Total rows: 100
Format: CSV
File size: 7.99 kB
Sources: LJPc-solutions -- Nederlandse adressen en postcodes (postal codes, coordinates); CBS (Statistics Netherlands) -- Woonplaatsen in Nederland 2025, table 86097NED (province, municipality, locality)
License: CC0 1.0 Universal (public domain) — LJPc-solutions postal codes and coordinates

About this dataset

Netherlands (NL) — internal licensing notes

Not mentioned in datahub-next#941 — no known licensing flag on this country. Source: converted from a FedEx-schema delivery (Netherlands_Delivery/Netherlands.csv, 467,630 rows) whose own base source is CC0 1.0 (public domain, no attribution needed). Two rows backfilled from the CBS woonplaatsen reference (CC-BY 4.0) would have dragged the whole file into an attribution obligation — those two rows are exactly the two asserting postalCode "00000" (no postal code), which don't belong in the postal-codes product anyway. Dropping them is correct on product grounds and keeps the published dataset cleanly CC0.

Session finding, 2026-08-19

Fixed nl/scripts/convert_from_fedex.py and siblings from hardcoded other-repo paths to self-contained. Confirmed the FedEx source file is real (45MB, not a stub) and re-ran the conversion against a fresh copy: 467,628 rows (2 dropped per above), byte-identical (MD5 match) to both the pre-existing local copy and live R2. Also confirmed the stale _meta/catalog.json entry for NL (which references a nonexistent nl-full.csv and claims 4,334 rows — off by two orders of magnitude from the real 467,628) is an index-only defect, not a data problem — this pipeline and the live nl.csv are both fine, only the storefront catalogue index needs a refresh.

No further licensing review — this was a code-reproducibility audit.

Upstream identified — 2026-10-09

The "upstream not identified" gap (pc-dky, 2026-10-06) is closed by tracing the staged FedEx export that scripts/convert_from_fedex.py read (datahub-sales-deliveries/Netherlands_Delivery/Netherlands.csv). That export is the fedex-agents-prototype countries/NLD build:

Postal codes and coordinates: countries/NLD/scripts/scrape_postal.py, LJPc-solutions "Nederlandse adressen en postcodes" (Nederland.csv.zst), CC0 1.0. Address rows are deduplicated to postal code and locality, with coordinates rounded to 5 dp.
Province, municipality and locality names: countries/NLD/scripts/scrape_admin.py, CBS OData table 86097NED "Woonplaatsen in Nederland 2025", CC BY 4.0. All 2,500 rows of data/admin.csv are source=cbs_woonplaatsen_86097NED_2025. Wikipedia was a cross-check only and contributed no rows. combine_phase2.py copies stateCode/stateName/county/cityName from the matched CBS row into the output.

So the earlier "CC0, no attribution required" was incomplete: CBS requires attribution ("bronvermelding van het CBS verplicht"). README, ATTRIBUTION and the yaml sources/licenses now credit both sources: CC0 (LJPc) and CC BY 4.0 (CBS). Both allow commercial resale, so tier A is unaffected. Text-only fix; no data or source change.