AS58291 ColoCenter b.v.

Netherlands ColoCenter RIPE 13 IPv4 prefixes 3 IPv6 prefixes

IPv4 addresses

8,192

IPv6 /48 networks

589,825

RPKI

15 valid1 no ROA

Peers and downstreams

101

Holder

AS name: ColoCenter
Description: ColoCenter b.v.
Organisation: ColoCenter b.v.
Registered in: Zoetermeer, Netherlands
Abuse contact: abuse@colocenter.nl
Assigned: 2012-06-14
Registered: 2012-06-15
Record last changed: 2026-05-27 21:02 UTC

104.165.118.0/24 156.67.120.0/24 185.102.68.0/22 185.140.184.0/22 185.79.152.0/22 213.156.28.0/22 23.230.52.0/24 45.141.20.0/24 45.43.153.0/24 5.253.237.0/24 5.39.184.0/21 85.208.49.0/24 91.205.193.0/24

AS1031	PEER 1031 LLC PEER1-1031
AS1103	SURF B.V. SURFNET-NL
AS1140	Stichting Internet Domeinregistratie Nederland SIDN
AS3170	VeloxServ Communications Ltd VELOXSERV
AS3212	Telemach Slovenija d.o.o. TELEMACH
AS3214	xTom GmbH XTOM
AS3333	Reseaux IP Europeens Network Coordination Centre (RIPE NCC) RIPE-NCC-AS
AS3399	Obenet AB OBE-NET
AS4657	StarHub Ltd STARHUB-INTERNET
AS5405	Inter.link GmbH INTERDOTLINK
AS6424	EDGOO NETWORKS UNIPESSOAL LDA EDGOO
AS6663	Euroweb Romania S.R.L. TTI-NET
AS6696	VERIXI SA VERIXI
AS7713	PT Telekomunikasi Indonesia telkomnet-as-ap
AS8218	Zayo Infrastructure France SA NEO-ASN
AS8298	IPng Networks GmbH IPNG
AS9044	BSE Software GmbH SOLNET
AS9198	JSC Kazakhtelecom KAZTELECOM-AS
AS12859	BIT BV NL-BIT
AS13004	Serbian Open Exchange DOO SOX
AS13194	UAB "Bite Lietuva" BITE
AS14840	BR.Digital Telecom AS14840
AS14907	Wikimedia Foundation Inc. WIKIMEDIA
AS15943	wilhelm.tel GmbH WTNET-AS
AS15958	CETIN Ltd. Belgrade CETIN_doo_AS
AS17639	Converge ICT Solutions Inc. CONVERGE-AS
AS20485	Joint Stock Company TransTeleCom TRANSTELECOM
AS20764	CJSC RASCOM RASCOM-AS
AS20766	Association "Gitoyen" GITOYEN-MAIN-AS
AS20932	Services Industriels de Geneve SIG-ST
AS22356	Durand do Brasil Ltda AS22356
AS24482	SG.GS SGGS-AS-AP
AS24961	WIIT AG MYLOC-AS
AS28910	"Uzbektelekom" Joint Stock Company INTAL-ASN
AS28917	Fiord Networks, UAB Fiord-AS
AS29075	IELO-LIAZO SERVICES SAS IELO
AS29632	Netassist International EOOD NASSIST-AS
AS34019	Hivane Association HIVANE
AS34927	iFog GmbH iFog-GmbH
AS35598	INETCOM CARRIER LLC INETCOM
AS36236	NetActuate, Inc NETACTUATE
AS37100	SEACOM Limited
AS37468	Angola Cables
AS37721	Virtual Technologies & Solutions
AS39122	Blacknight Internet Solutions Limited BLACKNIGHT-AS
AS39249	Netassist International EOOD KICUA-AS
AS39351	31173 Services AB ESAB-AS
AS39686	Eurofiber Nederland BV AS-EUROFIBER
AS41327	Fiber Telecom S.p.A. FIBERTELECOM-AS
AS41666	Institute for Pyrotechnical Cleaning (limited company) PYRO-AS
AS42295	TBISS Ltd TBISS-AS
AS42541	Fiberby ApS FIBERBY
AS44901	Belcloud LTD belcloud
AS45489	Sri Lanka Telecom PLC, GLobal Peering SLT-GLOBAL
AS47498	iFog GmbH FogIXP
AS47692	Nessus GmbH NESSUS
AS48185	team.blue NV team_blue
AS48646	SDRmedia Verwaltungs GmbH STEFAN6
AS48919	UACITY Ltd. UA-CITY-AS
AS49434	FBW NETWORKS SAS FBWNETWORKS
AS49544	i3D.net B.V i3Dnet
AS49673	Truenetwork LLC TRUENETWORK
AS50304	Blix Solutions AS BLIX
AS50629	LWLcom GmbH LWLCOM
AS50673	Serverius Holding B.V. Serverius-as
AS51185	MainStreaming SpA MAINSTREAMING-AS
AS56584	InterEdge B.V. INTER-IX
AS56655	Gigahost AS GIGAHOST
AS56911	Warian S.R.L. ASN-WARIAN
AS56987	ABACLOUDA SAS AS-ABACLOUDA
AS57118	CommunityRack.org Verein COMMUNITYRACK
AS58299	Openfactory GmbH OPENFACTORY-AS
AS60171	AFR-IX TELECOM S.A. AFRIX-AS
AS61049	Exascale Ltd EXASCALE
AS62000	SERVERD SAS AS62000
AS62167	Tismi BV Tismi
AS64475	Freifunk Frankfurt am Main e.V. FREIFUNK-FRANKFURT
AS137409	GSL Networks Pty LTD GSLNETWORKS-AS-AP
AS198150	SIACOM JSC SIACOM-AS
AS199524	G-Core Labs S.A. GCORE
AS200612	Gulf Bridge International Inc. GulfBridgeInternational
AS202365	Omer GOLGELI Chronos
AS204092	Association GRIFON GRIFON
AS205103	Telegraph42 Management GmbH TELEGRAPH-AS
AS205112	PHILUNET GmbH PHILUNET
AS205206	Netsite A/S Netsite
AS208972	GIBIRNET ILETISIM HIZMETLERI SANAYI VE TICARET LIMITED SIRKETI gibirnet-tr
AS209022	Tschajera Limited Tschajera-Limited
AS209090	Association Stolon STOLON
AS209823	Enki Multimedia EURL ENKI-AS
AS212483	LEVEL EIGHTY-SIX COMMUNICATIONS LTD level86
AS212635	Jurrian van Iersel AS212635
AS213035	Des Capital B.V. AS-SERVERION
AS263152	MIGO TELECOM AS263152
AS271253	LINK BRASIL TELECOMUNICACOES LTDA AS271253
AS401753	BIXCE Inc BIXCE

Upstream graph

Upstreams and their upstreams, from BGP paths

Network health

Grade B · 88/100

partly	Prefixes covered by valid ROAs 15 of 16 announced prefixes are RPKI valid, 1 have no ROA.	23/25
pass	No RPKI invalid announcements None of the announcements is RPKI invalid.	10/10
pass	Announces IPv6 3 IPv6 prefixes.	15/15
pass	More than one upstream 9 upstreams seen in BGP.	10/10
pass	Working abuse contact abuse@colocenter.nl is published.	15/15
fail	Publishes a geofeed No geofeed found. Without one, location databases have to guess.	0/10
pass	No prefixes smaller than /24 or /48 All prefixes are /24 (IPv4) or /48 (IPv6) or larger.	10/10
pass	Registry record maintained Last changed 2026-05-27.	5/5

Built from the announced prefixes, RPKI, the registry record and geofeeds. Checks without data are not counted. Also in the API.

Show this on your website

HTML

<a href="https://ip-fd.net/asn/58291"><img src="https://ip-fd.net/badge/asn/58291/health.svg" alt="AS58291 network health on IP-FD.net"></a>

Markdown

[![AS58291 network health](https://ip-fd.net/badge/asn/58291/health.svg)](https://ip-fd.net/asn/58291)

Use rpki.svg instead of health.svg for the RPKI badge.

Routing changes

Last 30 days

2026-10-04 11:38 UTC	Neighbour gone	AS264409	upstream
2026-10-04 11:38 UTC	Neighbour gone	AS58057	upstream
2026-10-04 11:38 UTC	Neighbour gone	AS50869	upstream
2026-10-04 11:38 UTC	Neighbour gone	AS41051	upstream
2026-10-04 11:38 UTC	New neighbour	AS263152	peer
2026-10-04 11:38 UTC	New neighbour	AS205206	peer
2026-10-04 11:38 UTC	New neighbour	AS198150	peer
2026-10-04 11:38 UTC	Relationship changed	AS9198	upstream to peer
2026-10-04 11:38 UTC	Relationship changed	AS9044	upstream to peer
2026-10-04 11:38 UTC	Relationship changed	AS8298	upstream to peer
2026-10-04 11:38 UTC	Relationship changed	AS8218	upstream to peer
2026-10-04 11:38 UTC	Relationship changed	AS7713	upstream to peer
2026-10-04 11:38 UTC	New neighbour	AS6939	upstream
2026-10-04 11:38 UTC	New neighbour	AS6696	peer
2026-10-04 11:38 UTC	Relationship changed	AS6663	upstream to peer
2026-10-04 11:38 UTC	New neighbour	AS62000	peer
2026-10-04 11:38 UTC	New neighbour	AS61049	peer
2026-10-04 11:38 UTC	Relationship changed	AS60171	upstream to peer
2026-10-04 11:38 UTC	New neighbour	AS57118	peer
2026-10-04 11:38 UTC	Relationship changed	AS56911	upstream to peer
2026-10-04 11:38 UTC	Relationship changed	AS56655	upstream to peer
2026-10-04 11:38 UTC	New neighbour	AS56584	peer
2026-10-04 11:38 UTC	Relationship changed	AS5405	upstream to peer
2026-10-04 11:38 UTC	Relationship changed	AS50673	upstream to peer
2026-10-04 11:38 UTC	Relationship changed	AS48646	upstream to peer
2026-10-04 11:38 UTC	Relationship changed	AS47692	upstream to peer
2026-10-04 11:38 UTC	New neighbour	AS47498	peer
2026-10-04 11:38 UTC	New neighbour	AS4657	peer
2026-10-04 11:38 UTC	Relationship changed	AS42295	upstream to peer
2026-10-04 11:38 UTC	Relationship changed	AS401753	upstream to peer
2026-10-04 11:38 UTC	New neighbour	AS39686	peer
2026-10-04 11:38 UTC	Relationship changed	AS39351	upstream to peer
2026-10-04 11:38 UTC	Relationship changed	AS39249	upstream to peer
2026-10-04 11:38 UTC	Relationship changed	AS37468	upstream to peer
2026-10-04 11:38 UTC	Relationship changed	AS37100	upstream to peer
2026-10-04 11:38 UTC	Relationship changed	AS34019	upstream to peer
2026-10-04 11:38 UTC	Relationship changed	AS29632	upstream to peer
2026-10-04 11:38 UTC	Relationship changed	AS29075	upstream to peer
2026-10-04 11:38 UTC	Relationship changed	AS24961	upstream to peer
2026-10-04 11:38 UTC	New neighbour	AS22356	peer
2026-10-04 11:38 UTC	Relationship changed	AS213035	upstream to peer
2026-10-04 11:38 UTC	Relationship changed	AS209090	upstream to peer
2026-10-04 11:38 UTC	Relationship changed	AS209022	upstream to peer
2026-10-04 11:38 UTC	New neighbour	AS20766	peer
2026-10-04 11:38 UTC	New neighbour	AS20764	peer
2026-10-04 11:38 UTC	Relationship changed	AS205103	upstream to peer
2026-10-04 11:38 UTC	Relationship changed	AS20485	upstream to peer
2026-10-04 11:38 UTC	Relationship changed	AS15958	upstream to peer
2026-10-04 11:38 UTC	New neighbour	AS15943	peer
2026-10-04 11:38 UTC	New neighbour	AS14840	peer
2026-10-04 11:38 UTC	Relationship changed	AS137409	upstream to peer
2026-10-04 11:38 UTC	New neighbour	AS13194	peer
2026-10-04 11:38 UTC	New neighbour	AS1031	peer
2026-10-04 11:38 UTC	New prefix	156.67.120.0/24
2026-10-04 11:38 UTC	New prefix	104.165.118.0/24
2026-10-04 11:38 UTC	New prefix	5.253.237.0/24
2026-10-04 11:38 UTC	New prefix	23.230.52.0/24

WHOIS

aut-num:        AS58291
as-name:        ColoCenter
org:            ORG-Cb42-RIPE
admin-c:        AL9611-RIPE
tech-c:         AL9611-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         mnt-colo
created:        2012-06-15T13:08:24Z
last-modified:  2026-05-27T21:02:08Z
source:         RIPE
% 40 routing policy lines (import/export) not shown

Routing data

Updated just now

Registry record

Fetched just now from RIPE

Prefixes and neighbours come from the RIPE RIS route collectors. Data older than 5 minutes is refreshed when this page is opened.

API

curl -H "X-API-Key: YOUR_KEY" https://ip-fd.net/api/v1/asn/58291

const res = await fetch('https://ip-fd.net/api/v1/asn/58291', {
  headers: { 'X-API-Key': 'YOUR_KEY' }
});
const data = await res.json();
console.log(data);

import requests

r = requests.get('https://ip-fd.net/api/v1/asn/58291', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/58291');
curl_setopt($ch, CURLOPT_HTTPHEADER, ['X-API-Key: YOUR_KEY']);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$data = json_decode(curl_exec($ch), true);
print_r($data);

req, _ := http.NewRequest("GET", "https://ip-fd.net/api/v1/asn/58291", nil)
req.Header.Set("X-API-Key", "YOUR_KEY")
res, err := http.DefaultClient.Do(req)
if err != nil {
    log.Fatal(err)
}
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))

Works without a key at a lower rate. Get a free key.

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