Registered · Cross-platform

1813 RADIUS accounting

TCP Yes
UDP Yes
SCTP —
DCCP —

What it is

Standard RADIUS accounting.

When / why

Session accounting records to the RADIUS server.

Protocol status detail

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

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

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