Airfield data sources
The airfield pages and free tools are built from open data. These are the sources, the licence each is published under, and the credit each asks for.
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OurAirports
Airfields, runways and radio frequencies.
- Licence
- Public domain
- Credit
- Airfield data from OurAirports, released into the public domain.
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Aviation Weather Center
METARs and TAFs.
- Licence
- Public domain (a work of the US government)
- Credit
- Weather reports from the Aviation Weather Center, part of the US National Weather Service.
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Ordnance Survey, Boundary-Line
The counties of England, Wales and Scotland (ceremonial counties, preserved counties and lieutenancy areas), October 2026 edition, converted to latitude and longitude and simplified.
- Licence
- Open Government Licence v3.0
- Credit
- Contains OS data © Crown copyright and database right 2026.
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Ordnance Survey of Northern Ireland
The six counties of Northern Ireland (OSNI Open Data Largescale Boundaries, County Boundaries), from the copy published by the Department of Agriculture, Environment and Rural Affairs, simplified.
- Licence
- Open Government Licence v3.0
- Credit
- Contains public sector information licensed under the Open Government Licence v3.0. © Crown copyright, Ordnance Survey of Northern Ireland.
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Tailte Éireann
The 26 counties of Ireland (Counties, National Statutory Boundaries 2019, generalised 20 m).
- Licence
- CC BY 4.0
- Credit
- © Tailte Éireann. Licensed under CC BY 4.0. Modified: the boundaries are simplified.
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US Census Bureau
The 50 states and the District of Columbia (2023 Cartographic Boundary File, States, 1:500,000), simplified.
- Licence
- Public domain
- Credit
- Source: US Census Bureau, 2023 Cartographic Boundary File, States.
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Australian Bureau of Statistics
The states and territories of Australia, with Jervis Bay Territory (ASGS Edition 3, States and Territories 2021, generalised).
- Licence
- CC BY 4.0
- Credit
- Based on Australian Bureau of Statistics data, © Commonwealth of Australia, licensed under CC BY 4.0. Modified: the boundaries are simplified, and of the other territories only Jervis Bay Territory is kept.
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Stats NZ
The regional council regions of New Zealand and the Chatham Islands (Regional Council 2025).
- Licence
- CC BY 4.0
- Credit
- This work is based on Stats NZ's data which are licensed by Stats NZ for reuse under the Creative Commons Attribution 4.0 International licence. Modified: the boundaries are simplified, and the Three Kings Islands left out.
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Statistics Canada
The provinces and territories of Canada (2021 Census Boundary Files, Provinces/Territories), simplified.
- Licence
- Statistics Canada Open Licence
- Credit
- Adapted from Statistics Canada, 2021 Census Boundary Files, Provinces/Territories. This does not constitute an endorsement by Statistics Canada of this product.
Airfield data is crowd-sourced and not checked by Volanti. Check the AIP and NOTAMs before you fly.