We currently only support databases from maxmind.
I don't think PHP is capable of retrieving some entries from a 983.8 MB CSV within seconds.
On the forum I found https://forum.matomo.org/t/ip-lookup-via-db-ip-csv-for-isp-org-answered/20144
@m-cameron no. Only Maxmind GeoIP databases are currently supported. But there is a plugin on marketplace to support IP2Location
we'll probably stop using Maxmind soon, and replace with db-ip, if our tests prove successful. refs #15308
@mattab we won't implement support for the CSV version of dp-ip, but their GeoIP2 version.
Indeed, we won't support CSV, so will close this issue. See progress in #15308