asn.dev

Autonomous system

AS57423 NEXTNETWORKS-AS

Unclassified RIPE Educational/Research

IPv4 addresses 256 1 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly NO
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

Sigterm AS

Norway · AI-generated

education research regional

The AS handle NEXTNETWORKS-AS is held by Sigterm AS.

What it's used for

  • The address space is registered under the netname ORG-SA5045-RIPE with registrant Sigterm AS, carrying a single IPv4 block 193.150.121.0/24 and one IPv6 prefix 2001:67c:24fc::/48.
  • With 256 IPv4 addresses and 1 observed neighbour, the network operates as a small, self-contained regional network rather than a transit provider.
  • Sigterm AS is an educational and research organization in Norway, so traffic from this AS consists of academic and research endpoints.

Notable

  • The RDAP registrant Sigterm AS matches the AS holder, confirming consistent ownership of the announced space.
  • The inventory is minimal, consisting of one IPv4 /24 and one IPv6 /48, typical for a small institutional network.
  • Secondary sources identify the operator as Sigterm (aka Next Networks), an educational and research entity in Norway.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.

Interconnection

Peering at a glance

Full topology · Graph

Internet exchanges

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

1 upstream, 0 downstream and 2 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS49788Nexthop AS96

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-28, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 1 prefixes · 256 addresses IPv6 1 prefixes

CountryNamePrefixes
NONorway2

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS57423
Registry name
NEXTNETWORKS-AS
Registrant
NEXTHOP-MNT
Abuse contact
abuse@sigterm.no
Registered
2011-10-21
Last changed
2023-03-16
Allocation
allocated

Declared

PeeringDB profile

self-reported
Name
Sigterm
Also known as
Next Networks
Network type
Educational/Research
Scope
Regional
Traffic ratio
Mostly Outbound
Peering policy
Open
IRR as-set
AS-NEXTNETWORKS
Present at
1 exchanges
Website
https://sigterm.no

PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 2 with no ROA
ROAs
0 authorising AS57423
ASPA
no ASPA record
IRR
100% registered · 2 of 2 announcements
Route objects
2 naming AS57423

Reputation

Classification and threat

Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.

Spamhaus DROP

Not on ASN-DROP The network as a whole is not listed.

No DROP prefixes None of its announced space is on the DROP prefix list.

Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 448 networks and 1,849 prefixes, as published 2026-10-29. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.

FBI IC3

No IC3 indicators Nothing from the FBI IC3 feed.

IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.

Elsewhere

Cross-check