asn.dev

Autonomous system

AS21331 OKDN-AS

Unclassified ARIN

IPv4 addresses 65.54K 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

Oslo kommune

Norway · AI-generated

government municipal internal

The AS handle OKDN-AS is held by Oslo kommune, the municipal government of Oslo, Norway.

What it's used for

  • The space carries internal municipal infrastructure, evidenced by the netname OKDN-NO and registrant OKDN Admin associated with the single announced prefix.
  • The AS announces 65536 IPv4 addresses within a single /16 prefix and one IPv6 prefix, while maintaining only 1 observed neighbour, indicating a self-contained internal network rather than a transit or access provider.

Notable

  • The registrant OKDN Admin aligns with the announcer Oslo kommune, Utviklings- og kompetanseetaten, confirming the space is owned and operated by the municipality.
  • The address inventory consists of a single contiguous /16 block, suggesting a unified internal estate for the city's digital services and development department.

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
AS2119Telenor Norge AS151

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-14, 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 · 65.54K addresses IPv6 1 prefixes

CountryNamePrefixes
NONorway2

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS21331
Registry name
OKDN-AS
Registrant
no-okman-1-mnt
Abuse contact
kjartan.maraas@dig.oslo.kommune.no
Registered
2001-11-21
Last changed
2018-09-04
Allocation
allocated

Declared

PeeringDB profile

self-reported
Name
Oslo kommune
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
0% valid · 0 valid, 3 with no ROA
ROAs
0 authorising AS21331
ASPA
no ASPA record
IRR
100% registered · 3 of 3 announcements
Route objects
3 naming AS21331

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: 442 networks and 1,773 prefixes, as published 2026-10-13. 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