Geofeed
Also known as: RFC 8805 geofeed, self-published geolocation
A CSV file, published by the address holder per RFC 8805, mapping their prefixes to geographic locations for accurate geolocation.
A geofeed is how a network authoritatively states where its prefixes are used. It is a simple CSV (prefix, country, region, city) published at a URL and referenced from RIR WHOIS records, defined by RFC 8805.
Geofeeds are the most accurate geolocation source available because they come from the operator itself, overriding third-party guesses. They are widely used to correct mislocated IP space after re-assignments or transfers.
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