Port 687ASIP Registry

ASIP Registry traffic for the obscure service assignment held by Erik Sea.

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

Technical Details

what runs on :687

ASIP Registry is registered on port :687 over tcp and udp to Erik Sea. We don't have a technical write-up for it beyond the IANA registry entry.

In nmap's internet-wide scan data this port is found open sometimes. What's listening is often not the registered service, so check before you assume.

find what's listening on :687

this machine

# linux
sudo ss -tulpn 'sport = :687'

# macos / bsd
sudo lsof -nP -i :687

# windows (then: tasklist /FI "PID eq <pid>")
netstat -ano | findstr :687

another host

nmap -sV -p T:687 <host>
sudo nmap -sU -sV -p U:687 <host>

run it? the handshake, the implementations you meet in the wild and the flags that matter come from the engineers who do.

add technical details

Security Information

exposure of :687

risk score

1/ 10safe

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

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

no security notes recorded for :687 yet

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

Record

iana registry entry

port: :687
service: ASIP Registry
transport: TCPUDP
encryption: cleartext
assignment: iana registered
risk: 1/10safe
category: uncategorised
usage: The IANA registry assigns TCP and UDP port 687 to the service name "asipregistry," registered to Erik Sea. Public protocol and deployment details are not established by the registry entry.
lookups: 0rank 993
added: 2026-08-20
updated: 2026-08-20
references: IANA service name registry — port 687

Something wrong?

This record is maintained by the engineers who use port 687. 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 2026-08-20.

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

browse categories →

ports registered around :687, by lookups.

port	service	proto	category	risk	views
:660	Mac OS X Server Admin	TCP	Remote Access	caution	23.7k
:749	Kerberos Admin	TCPUDP	Security	safe	23.6k
:623	ASF-RMCP	UDP	Remote Access	caution	20.5k
:636	LDAPS	TCPUDPtls	Security	caution	15.6k
:712	TBRPF Protocol	TCP	Network Services	caution	15.0k
:695	IEEE-MMS-SSL	TCPtls	Security	caution	14.3k
:639	MSDP	TCPUDP	Network Services	caution	11.4k
:647	DHCP Failover	TCP	Network Services	caution	11.1k

risk mix of the 8 listed

safe13%
caution88%

2 of 8 encrypted

Port :687ASIP Registry

Technical Details

Security Information

Related Ports

Port 687ASIP Registry