Port 2019Whosockami

IANA's obscure Whosockami assignment; uncommon in modern networks and not defined by an RFC.

transport: tcp · udp
in transit: cleartext
assignment: official
risk: 3/10
lookups: 0

Technical Details

what runs on :2019

The IANA registry assigns the Whosockami service name to TCP and UDP port 2019, but no RFC or authoritative public protocol specification establishes its handshake, framing, encryption, or related ports. Treat traffic as application-specific and identify the implementation rather than assuming a standard wire protocol.

Security Information

exposure of :2019

risk score

3/ 10caution

worth attention. how exposed you are depends on configuration — don't leave it reachable from the internet without a reason.

network services averages 3.2 across 895 ports — this one sits 0.2 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

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

security overview

Do not expose an unidentified service on this port to the public internet. Because the protocol and authentication behavior are not established, an open listener should be fingerprinted and restricted with firewall rules until the owning application is known.

Record

iana registry entry

port: :2019
service: Whosockami
transport: TCPUDP
encryption: cleartext
assignment: iana registered
risk: 3/10caution
category: Network Services
usage: IANA registers port 2019 for Whosockami over TCP and UDP. It is an obscure historical assignment with little evidence of contemporary, standardized deployment.
lookups: 0rank 994
added: 2026-09-01
updated: 2026-09-01
references: IANA Service Name and Transport Protocol Port Number Registry

Something wrong?

This record is maintained by the engineers who use port 2019. 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 2026-09-01.

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 895 in network services →

the 8 most looked-up other ports in network services — 895 ports carry that label.

port	service	proto	category	risk	views
:9080	Groove RPC	TCPUDP	Web Services	caution	70.8k
:6543	Jetnet	UDP	Network Services	caution	65.3k
:5938	TeamViewer	TCPUDP	Remote Access	caution	65.0k
:8291	Winbox MikroTik Admin	TCP	Security	caution	62.9k
:3233	WhiskerControl Protocol	TCPUDP	Network Services	caution	61.9k
:3268	Microsoft Global Catalog (GC)	TCPUDP	Security	caution	54.6k
:135	Microsoft EPMAP	TCPUDP	Security	caution	51.9k
:3128	Tatsoft Default HTTP Proxy	TCP	Web Services	caution	46.8k

risk mix of the 8 listed

caution100%

0 of 8 encrypted

Port :2019Whosockami

Technical Details

Security Information

Related Ports

Port 2019Whosockami