A list of all FTP servers in IPv4 that allow anonymous logins
This is a list of all FTP servers directly connected to port 21 in the IPv4 address space that allow anonymous logins. The login must be completed in less than 15 seconds to qualify for this list.
The last scan contains 796,268 servers that allow anonymous access. This is 4.31486 % of the 18,454,087 services running on port 21 in IPv4.
More info in the repo: turbo/openftp4
Cheers ☕