Port 25471RNSAP User Adaptation (RNA)

SCTP service for carrying RNSAP signalling across the 3GPP Iurh radio-network interface.

transport: sctp
in transit: cleartext
assignment: official
risk: 2/10
lookups: 0

also known as rna

Technical Details

what runs on :25471

This assignment is for RNSAP User Adaptation traffic over SCTP. An endpoint establishes an SCTP association, after which RNA carries RNSAP signalling messages; SCTP provides reliable, message-oriented transport. SCTP itself does not encrypt the traffic, and this port is intended for the Iurh network context rather than general Internet use.

Security Information

exposure of :25471

risk score

2/ 10safe

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

network services averages 2.6 across 1,947 ports — this one sits 0.6 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

sctp

every listening transport is another surface to filter at the edge

security overview

RNSAP signalling is relevant to mobile-network infrastructure and should be confined to trusted operator links, not exposed directly to the public Internet. SCTP and this adaptation do not provide encryption by default; restrict peers and apply network-layer protections appropriate to the deployment.

Record

iana registry entry

port: :25471
service: RNSAP User Adaptation (RNA)
transport: SCTP
encryption: cleartext
assignment: iana registered
risk: 2/10safe
category: Network Services Mobile
usage: RNA carries RNSAP signalling for the 3GPP Iurh interface in UMTS radio access networks. It is specialized operator-network signalling, not a general-purpose application service.
lookups: 0rank 993
added: 2026-10-19
updated: 2026-10-19
references: IANA service name registry — port 25471

Something wrong?

This record is maintained by the engineers who use port 25471. 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 2026-10-19.

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risk mix of the 8 listed

caution100%

0 of 8 encrypted

Port :25471RNSAP User Adaptation (RNA)

Technical Details

Security Information

Related Ports

Port 25471RNSAP User Adaptation (RNA)