Database	Type	License	Updated	IPv4	IPv6	IPv4-num	IPv6-num
GeoLite2	City	GeoLite2 License by MaxMind	Twice weekly	CSV.gz CSV.7z MMDB	CSV.gz CSV.7z MMDB	CSV.gz CSV.7z	CSV.gz CSV.7z

${format-7z-csv} ip_range_start and ip_range_end are either IP addresses, or IP addresses in numeric format (depending upon which files you choose) and these two fields represent an inclusive range of IP addresses for that data row.

For example, in the -ipv4.csv files, the CSV line: 1.0.0.0,1.0.0.255,AU would mean that any IP addresses between 1.0.0.0 and 1.0.0.255 (inclusive) are AU. In -ipv4-num.csv files, the equivalent line would be: 16777216,16777471,AU.

For example, in the -ipv6.csv files, the CSV line: 2001:200::,2001:200:ffff:ffff:ffff:ffff:ffff:ffff,JP would mean that any IP addresses between 2001:200:: and 2001:200:ffff:ffff:ffff:ffff:ffff:ffff (inclusive) are JP. In -ipv6-num.csv files, the equivalent line would be: 42540528726795050063891204319802818560,42540528806023212578155541913346768895,JP.

Please be careful when using IPv6 and IPv6-num files in your program, the numerical value exceeds 32bit unsigned integers, and you would need to use a 128bit unsigned integer.

country_code is the two-letter code defined in ISO 3166-1 alpha-2. You can get the country name, capital, continent, currency, languages, etc. from the country_code by Countries Database in JSON, CSV, SQL format.

GeoLite2 is created by MaxMind. The license of GeoLite2 is written in GEOLITE2_LICENSE and End User License Agreement (EULA) is written in GEOLITE2_EULA. Please carefully read the GEOLITE2_LICENSE and GEOLITE2_EULA files, if you use these database. This package comes with certain restrictions and obligations, most notably:

• You cannot prevent the library from updating the databases.
• You cannot use the GeoLite2 data:
  • for FCRA purposes,
  • to identify specific households or individuals.

You can read the latest version of GeoLite2 EULA. GeoLite2 databse is provided under CC BY-SA 4.0 by MaxMind, so, you must create attribution to MaxMind for using GeoLite2 database. If you need better accuracy, please use the commercial version GeoIp2.

${explanation-db-city}

When merging multiple database, set the front database above back one. For example, geo-whois-asn-country is created by merging 3 database with GeoFeed > Whois > ASN. In more detail, the geo-whois-asn database matches the GeoFeed results, for ip ranges not covered by GeoFeed it matches the Whois results, and for ip ranges not covered by either it matches the ASN results.

GeoFeed: 1.0.0.0, 2.0.0.0, AU
         3.0.0.1, 4.0.0.0, US
Whois:   1.0.0.0, 2.2.0.0, FR
         2.5.0.1, 4.0.0.0, IN
ASN:     1.0.0.0, 4.0.0.0, JP

is converted to

GeoFeed-Whois-ASN: 1.0.0.0, 2.0.0.0, AU
                   2.0.0.1, 2.2.0.0, FR
                   2.2.0.1, 2.5.0.0, JP
                   2.5.0.1, 3.0.0.0, IN
                   3.0.0.1, 4.0.0.0, US