Port 5675V5.2 User Adaptation (V5UA)

Carries V5.2 access-network signaling over IP using the SIGTRAN V5UA adaptation layer.

transport: tcp · udp · sctp
in transit: cleartext
assignment: official
risk: 5/10
lookups: 0

also known as SIGTRAN V5UA

Technical Details

what runs on :5675

V5UA adapts V5.2 signaling for transport over IP, commonly between a V5.2 access-network endpoint and a signaling gateway. Its standardized transport is SCTP, using an association and SIGTRAN messages with structured headers and parameters; management procedures establish and activate the application endpoints before signaling is exchanged. IANA lists port 5675 for TCP, UDP, and SCTP, though V5UA's SIGTRAN design is SCTP-based.

Security Information

exposure of :5675

risk score

5/ 10caution

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

network services averages 2.6 across 1,657 ports — this one sits 2.4 above.

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

V5UA carries telecom signaling and is not encrypted by default. It should be restricted to trusted carrier or signaling-network peers rather than exposed to the public internet; an exposed endpoint may accept or be targeted with signaling traffic, and network-layer protections and strict peer filtering are appropriate.

Record

iana registry entry

port: :5675
service: V5.2 User Adaptation (V5UA)
transport: TCPUDPSCTP
encryption: cleartext
assignment: iana registered
risk: 5/10caution
category: Network Services Voice and Chat
usage: V5UA is a SIGTRAN protocol for carrying V5.2 signaling between an access network and a signaling gateway over IP. Engineers are most likely to encounter it in carrier voice networks, not on ordinary internet-facing hosts; it was not observed open in the cited internet-wide scan data.
lookups: 0rank 993
added: 2026-10-08
updated: 2026-10-08
references: IANA service name registry — port 5675
RFC 3807

Something wrong?

This record is maintained by the engineers who use port 5675. 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 2026-10-08.

01edit any field on a page of its own
02a model checks it for accuracy and spam
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edit this record →back to the registry

Related Ports

all 1,657 in network services →

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risk mix of the 8 listed

caution100%

0 of 8 encrypted

Port :5675V5.2 User Adaptation (V5UA)

Technical Details

Security Information

Related Ports

Port 5675V5.2 User Adaptation (V5UA)