asn.dev

Autonomous system

AS44821 ONEOP Koesio Nord Ouest SAS

Unclassified RIPE

IPv4 addresses 4.61K 7 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly FR
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

Koesio Nord Ouest

France · AI-generated

business telecom france

ONEOP is operated by Koesio Nord Ouest SAS.

What it's used for

  • The address space carries corporate and telecom infrastructure, evidenced by netnames such as FR-ONEOPERATEUR-20160422, FR-ONEOPERATEUR-20190208, and FR-CPRO-TELECOM-20180110.
  • The AS announces 4,608 IPv4 addresses across 7 prefixes with only 1 observed neighbour, indicating a small-scale access or internal corporate network rather than a transit provider.
  • Traffic from this AS consists of business and enterprise connectivity for Koesio's operations in the Normandy region of France.

Notable

  • Registrants are consistent with the announcer, listing Koesio Nord Ouest SAS and KOESIO Networks SAS for most prefixes, though 149.86.172.0/22 is registered to Cogent Communications, LLC.
  • The address inventory is a mix of /22, /23, and /24 blocks, with one prefix (149.86.172.0/22) belonging to a different registrant, suggesting leased or historical space.

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 1 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS206120KOESIO Networks SAS462

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-02, 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 7 prefixes · 4.61K addresses IPv6 0 prefixes

CountryNamePrefixes
FRFrance7

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS44821
Registry name
ONEOP
Registrant
MNT-CPRO
Abuse contact
noc@koesio.com
Registered
2016-04-22
Last changed
2026-04-10
Allocation
allocated

Declared

PeeringDB profile

self-reported
Name
One Op
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
43% valid · 3 valid, 4 with no ROA
ROAs
4 authorising AS44821
ASPA
no ASPA record
IRR
100% registered · 7 of 7 announcements
Route objects
9 naming AS44821

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 1,851 prefixes, as published 2026-11-03. 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