Port 20 — FTP Data
Carries the actual file contents in classic (active-mode) FTP transfers, paired with the control channel on port 21.
| Port number | 20 |
|---|---|
| Service | FTP Data |
| Transport | TCP |
| Category | File Transfer |
Is port 20 safe?
Unencrypted; prefer SFTP (port 22) or FTPS.
Frequently asked questions
What is port 20 used for?
Port 20 (TCP) is the standard port for FTP Data. Carries the actual file contents in classic (active-mode) FTP transfers, paired with the control channel on port 21.
Is port 20 safe to open?
Unencrypted; prefer SFTP (port 22) or FTPS.
Is port 20 TCP or UDP?
Port 20 commonly uses TCP.