asn.dev

Autonomous system

AS58291 COLOCENTER

Hosting RIPE Content

IPv4 addresses 8.96K 16 prefixes
IPv6 prefixes 4 counted as prefixes, not addresses
Countries 1 mostly NL
Exchanges 5 recorded by PCH
Upstreams 29 6 downstream
Flagged prefixes 0 none

Summary

ColoCenter

Netherlands · AI-generated

hosting colocation netherlands

The AS handle COLOCENTER is held by ColoCenter b.v.

What it's used for

  • The address space carries colocation and hosting infrastructure, evidenced by reverse DNS entries pointing to colocenter.nl and netnames such as NL-COLOCENTER-20120515.
  • The AS announces 7168 IPv4 addresses across 9 prefixes and 4 IPv6 prefixes, while maintaining 92 observed neighbours; this ratio indicates a transit or peering-heavy role typical of a datacenter operator connecting to multiple upstreams and peers.
  • Traffic from this AS consists of hosted server workloads, cloud instances, and colocation tenants, consistent with ColoCenter's business of providing datacenter, cloud, and hosting services in Zoetermeer, Netherlands.

Notable

  • Registrants for the majority of prefixes align with the announcer, listing ColoCenter b.v. as the administrative and technical contact for blocks like 5.39.184.0/21 and 185.79.152.0/22.
  • Some prefixes, including 185.102.68.0/22 and 213.156.28.0/22, are registered to Defion Security Netherlands B.V. under netnames NL-COMPUTEST, while 45.43.153.0/24, 45.141.20.0/24, and 85.208.49.0/24 are registered to GLOBALIT DOO, and 91.205.193.0/24 to CloudMonsters B.V., indicating leased or historically acquired address space.
  • The inventory includes a mix of /21, /22, and /24 blocks, with the largest being 5.39.184.0/21, reflecting a fragmented but substantial address 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

Recorded at 5 exchanges in 1 country, largest first.

ExchangeLocationTheir address
Neutral Internet ExchangeAmsterdam, Netherlands193.239.117.29
The Frys Internet ExchangeFrysian, Netherlands2001:7f8:10f::e3b3:185
Speed Internet ExchangeDronten, Netherlands185.1.222.96
InterIX Internet ExchangeAmsterdam, Netherlands2001:7f8:134::5
ERA-IX AmsterdamAmsterdam, Netherlands185.1.240.23

Transit providers

29 upstream, 6 downstream and 54 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS174Cogent Communications, LLC353
AS6939Hurricane Electric LLC126
AS6830Liberty Global Europe Holding B.V.98
AS6204INTERKVM HOST SRL91
AS24785Broadband Hosting B.V.52
AS50304Blix Solutions AS32
AS20562Broadband Hosting B.V.26
AS3333Reseaux IP Europeens Network Coordination Centre (RIPE NCC)19

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-26, 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 16 prefixes · 8.96K addresses IPv6 4 prefixes

CountryNamePrefixes
NLNetherlands20

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS58291
Registry name
ColoCenter
Registrant
MNT-COLO
Abuse contact
abuse@colocenter.nl
Registered
2012-06-15
Last changed
2026-05-27
Allocation
allocated

Declared

PeeringDB profile

self-reported
Name
ColoCenter
Network type
Content
Scope
Europe
Traffic ratio
Mostly Outbound
Peering policy
Open
IRR as-set
RIPE::AS-COLOCENTER
Present at
9 exchanges
Facilities
6 facilities
Website
http://www.colocenter.nl

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
95% valid · 18 valid, 1 with no ROA
ROAs
22 authorising AS58291
ASPA
no ASPA record
IRR
100% registered · 19 of 19 announcements
Route objects
36 naming AS58291

Reputation

Classification and threat

Hosting Datacenter or cloud provider. Addresses are servers, not people.

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: 445 networks and 1,817 prefixes, as published 2026-10-27. 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