UDP Port 1521 – Oracle Database (TNS Listener)

About UDP Port 1521

Port 1521 is registered with the Internet Assigned Numbers Authority (IANA) for ncube-lm. The IANA description reads: ‘nCube License Manager’. This port does not currently appear in the IDS rulesets or malware activity indicators in our data sources.

Data Sources

This information is compiled from: IANA Service Name and Transport Protocol Port Number Registry and Emerging Threats Open Ruleset (BSD 2-Clause / GPLv2 per SID range).