Port 9979Valley Information Systems Weather Station Data

TCP port for weather station data from Valley Information Systems systems.

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

also known as visweather

Technical Details

what runs on :9979

no technical write-up for :9979 yet

the handshake, the implementations you meet in the wild, the flags that matter. we have the registry entry — the detail comes from the engineers who run it.

add technical details

Security Information

exposure of :9979

risk score

1/ 10safe

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

iot averages 3.2 across 141 ports — this one sits 2.2 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

every listening transport is another surface to filter at the edge

security overview

no security notes recorded for :9979 yet

known exploits, hardening advice, what a compromise looks like — suggest an edit if you know its exposure.

Record

iana registry entry

port: :9979
service: Valley Information Systems Weather Station Data
transport: TCP
encryption: cleartext
assignment: iana registered
risk: 1/10safe
category: IoT
usage: IANA assigns this TCP service to Valley Information Systems Inc for weather station data. It is likely encountered only in deployments using that company's weather station software or equipment.
lookups: 0rank 994
added: 2026-09-15
updated: 2026-09-15
references: IANA service name registry — port 9979

Something wrong?

This record is maintained by the engineers who use port 9979. 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 2026-09-15.

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 141 in iot →

the 8 most looked-up other ports in iot — 141 ports carry that label.

port	service	proto	category	risk	views
:6543	Jetnet	UDP	Network Services	caution	65.3k
:3233	WhiskerControl Protocol	TCPUDP	Network Services	caution	61.9k
:9600	Omron FINS Communication	UDP	Network Services	caution	33.2k
:4840	OPC UA TCP	TCPUDP	Network Services	caution	26.6k
:5678	Mikrotik MNDP	UDP	Network Services	caution	24.7k
:4843	OPC UA over TLS/SSL	TCPUDPtls	Security	caution	24.6k
:5001	Slingbox	TCP	Streaming	caution	22.4k
:15000	Hypack Data Acquisition	TCP	Network Services	caution	21.4k

risk mix of the 8 listed

caution100%

1 of 8 encrypted

Port :9979Valley Information Systems Weather Station Data

Technical Details

Security Information

Related Ports

Port 9979Valley Information Systems Weather Station Data