9735
Lightning Network (Bitcoin)
Low RiskTCP — Other
Port Overview
Port Number
9735
Service Name
Lightning Network (Bitcoin)
Transport Protocol
TCP
Category
Other
Security Risk
Low
Port Range
Registered (1024-49151)
What is Port 9735?
Port 9735 is the default peer-to-peer port for Lightning Network nodes, a Layer 2 payment protocol built on top of Bitcoin for fast, low-fee micropayments. Lightning nodes use this port to communicate with peers for channel management, payment routing, and gossip protocol message exchange. Running a Lightning node on this port contributes to Bitcoin's payment scalability.
TCP
Other
Security Considerations
Port 9735 (Lightning Network (Bitcoin)) 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.