You can technically whitelist any IP address or range of IP addresses you'd like. There is a browser add-on called ORGanizer for Salesforce that will whitelist every IP addresses automatically for you. Just be careful of security risks of whitelisting IP addresses.
https://chrome.google.com/webstore/detail/organizer-for-salesforce/lojdmgdchjcfnmkmodggbaafecagllnh?hl=en