Port 1022RFC 3692-style Experiment 2

Reserved for RFC 3692-style experimental traffic; no defined production service is associated with port 1022.

transport: tcp · udp · sctp
in transit: cleartext
assignment: official
risk: 1/10
lookups: 0

also known as exp2

Technical Details

what runs on :1022

There is no standard handshake, framing, payload format, or default application behavior for this port. The IANA registry designates it as RFC 3692-style Experiment 2 and lists TCP, UDP, and SCTP; the experiment using it defines the actual transport behavior and protocol. It is commonly considered alongside port 1021, the other RFC 3692 experimental port, but neither port has a defined production service.

Security Information

exposure of :1022

risk score

1/ 10safe

routine exposure. this port is rarely the way in on its own — keep it patched and logged and move on.

system averages 2.7 across 915 ports — this one sits 1.7 below.

in transit

cleartext

credentials and payloads are readable by anyone on path

assignment

official

registered with iana for this service — scanners fingerprint it by number

reachable over

tcp · udp · sctp

udp is connectionless — source addresses are trivially spoofed and it is a reflection favourite

security overview

Exposure risk depends entirely on the experimental software bound to the port, not on the RFC 3692 designation. An internet scanner can identify and probe any implementation listening there, so experimental services should generally be restricted to test networks or allow-listed peers; there is no port-specific authentication or encryption guarantee.

Record

iana registry entry

port: :1022
service: RFC 3692-style Experiment 2
transport: TCPUDPSCTP
encryption: cleartext
assignment: iana registered
risk: 1/10safe
category: System
usage: Port 1022 is reserved for RFC 3692-style experimentation rather than assigned to a specific production protocol. Engineers may encounter an experimental implementation listening here, but the port itself does not identify the application or provide interoperable service semantics.
lookups: 0rank 993
added: 2026-08-19
updated: 2026-09-22
references: IANA service name registry — port 1022
RFC 4727
RFC 6335

Something wrong?

This record is maintained by the engineers who use port 1022. Every field on it is editable — change what's wrong, say how you know, and a reviewer publishes it, usually within a minute. Last touched 2026-09-22.

01edit any field on a page of its own
02a model checks it for accuracy and spam
03clean and confident goes live immediately

edit this record →back to the registry

Related Ports

all 915 in system →

the 8 most looked-up other ports in system — 915 ports carry that label.

port	service	proto	category	risk	views
:8888	Sun Answerbook & Alt HTTP	TCP	Web Services	caution	123.9k
:4664	Google Desktop Search	TCP	System	caution	67.2k
:8008	IBM HTTP Server Admin	TCP	Web Services	caution	58.3k
:3268	Microsoft Global Catalog (GC)	TCPUDP	Security	caution	54.6k
:135	Microsoft EPMAP	TCPUDP	Security	caution	51.9k
:9080	WebSphere HTTP Transport (default)	TCP	Web Services	caution	51.6k
:23	Telnet	TCP	Remote Access	caution	34.8k
:12489	NSClient Monitoring Agent	TCP	Network Services	caution	30.0k

risk mix of the 8 listed

caution100%

0 of 8 encrypted

Port :1022RFC 3692-style Experiment 2

Technical Details

Security Information

Related Ports

Port 1022RFC 3692-style Experiment 2