BigDataCloud: https://www.bigdatacloud.com/update-my-location
DbIp: https://db-ip.com/report/
DigitalElement: https://www.digitalelement.com/contact-us/
Ip2location: https://www.ip2location.com/contact
IpData: https://ipdata.co/corrections.html
IpInfo: https://ipinfo.io/corrections
IpLigence: https://www.ipligence.com/contact
Ipregistry: https://ipregistry.co/data-corrections
Maxmind: https://support.maxmind.com/geoip-data-correction-request/
Neustar: https://www.home.neustar/resources/tools/submit-to-global-ip-database