Registered · Cross-platform

4569 IAX2 (Asterisk)

TCP Yes
UDP
SCTP
DCCP

What it is

Inter-Asterisk eXchange v2.

When / why

VoIP trunking between Asterisk PBXs.

Protocol status detail

TransportStatusMeaning
TCP Yes Assigned by IANA and standardized, specified, or widely used on this port.
UDP Not applicable for this transport.
SCTP Not applicable for this transport.
DCCP Not applicable for this transport.

Port range

Registered (1024–49151). Assigned by IANA on request; usable without elevated privileges on most systems.

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