169
SEND
Low RiskTCP/UDP — Messaging
Port Overview
Port Number
169
Service Name
SEND
Transport Protocol
TCP/UDP
Category
Messaging
Security Risk
Low
Port Range
Well-Known (0-1023)
What is Port 169?
SEND protocol. An early messaging protocol for sending short text messages between networked users.
TCP/UDP
Messaging
Security Considerations
Port 169 (SEND) is classified as low risk. This service uses encryption or has a minimal attack surface, making it relatively safe to expose.
Recommendation: Standard security practices apply. Keep software updated and monitor access.