asn.dev

Autonomous system

AS50213 UNDERWORLD-AS

Unclassified RIPE

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

Underworld

Norway · AI-generated

business norway small

The AS handle UNDERWORLD-AS is held by Underworld.

What it's used for

  • The space carries business traffic, evidenced by the netname NO-UNDERWORLD-USN and registrant Underworld; Underworld NOC Team; Abuse Contact.
  • The inventory consists of 256 IPv4 addresses and 1 IPv6 prefix, with 1 observed neighbour, indicating a small, self-contained network rather than a transit or large access provider.
  • Reverse DNS entries such as teknologihovedstaden.trondheims.net and hyper.hybelkanin.no suggest the space hosts specific organizational or project-related endpoints.

Notable

  • The registrant Underworld agrees with the AS holder name.
  • The address inventory is a single /24 block (91.213.203.0/24) and a single /48 IPv6 prefix (2001:67c:398::/48), representing a compact, unified estate.

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
AS44381ITsjefen AS93

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-31, 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
AS50213
Registry name
UNDERWORLD-AS
Registrant
AS50213-MNT
Abuse contact
admin@underworld.no
Registered
2009-12-02
Last changed
2018-09-04
Allocation
allocated

Declared

PeeringDB profile

self-reported
Name
Underworld
Scope
Not Disclosed
Traffic ratio
Not Disclosed
Peering policy
Open

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
100% valid · 2 valid, 0 with no ROA
ROAs
2 authorising AS50213
ASPA
no ASPA record
IRR
100% registered · 2 of 2 announcements
Route objects
3 naming AS50213

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: 447 networks and 1,843 prefixes, as published 2026-11-01. 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