Autonomous System details

AS25151

Cyso Group B.V. · cyso.com

Netherlands

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AS25151 – Cyso Group B.V.

Field	Value
Country	Netherlands
Website	cyso.com
Hosted domains	55,766
IPv4 addresses	16,128
IPv6 addresses	713,054,671,554,198,652,629,200,000,000
ASN type	Hosting
Registry	ripe
Allocated	24 years ago on Sep 16, 2002
Updated	4 years ago on May 10, 2022

Netblock	Company	Num of IPs
37.46.136.0/21	Cyso Group B.V.	2,048
85.158.200.0/21	Cyso Group B.V.	2,048
93.94.224.0/21	Cyso Group B.V.	2,048
109.235.72.0/21	Cyso Group B.V.	2,048
81.24.0.0/22	Cyso Group B.V.	1,024
81.24.4.0/22	Cyso Group B.V.	1,024
81.24.8.0/22	Cyso Group B.V.	1,024
185.54.112.0/22	Cyso Group B.V.	1,024
185.78.196.0/22	Cyso Group B.V.	1,024
80.85.160.0/23	Het ExtraNet NETBLOCK1	512
81.24.6.0/23	Cyso Group B.V.	512
81.24.10.0/23	Cyso Group B.V.	512
2.57.56.0/24	Realtime Register B.V.	256
37.72.138.0/24	Harlem Next B.V.	256
45.134.223.0/24	Bitmaster Online BV	256
46.253.137.0/24	Cyso Group B.V.	256
62.129.139.0/24	Hosting.nl	256
62.129.149.0/24	Hosting.nl	256
80.85.161.0/24	Het ExtraNet NETBLOCK1	256
81.24.4.0/24	Cyso Group B.V.	256
81.24.9.0/24	Cyso Group B.V.	256
130.193.5.0/24	Cyso Group B.V.	256
185.123.55.0/24	Bitmaster Online B.V.	256
193.33.220.0/24	Ronald Pool is trading as Video en Media	256

Netblock	Company
2a05:6cc0::/29	Cyso Group B.V.
2a01:518::/32	Cyso Group B.V.
2001:678:c50::/48	Realtime Register B.V.

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WHOIS Details

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                                                ASHandle:       AS25151
                                                OrgID:          AS25151
                                                ASName:         AS25151
                                                ASNumber:       AS25151
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA

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Hosted Domains

There are 55,766 domain names hosted across 791 IP addresses on this ASN.

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IP Address	Domain	Domains on this IP
109.235.74.225	██████████	14,719
37.46.140.12	██████████	7,496
37.46.140.9	████████	2,554
37.46.140.23	██████████	1,783
37.46.140.24	██████████	1,552
37.46.140.16	██████████	1,474
93.94.231.166	██████████	1,368
37.46.140.26	███████	1,240
109.235.75.114	██████████	1,216
37.46.140.20	█████████	1,053

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Peers

There are 136 peers for this ASN.

Peers	Name
AS1031	PEER 1031 LLC
AS1103	SURF B.V.
AS1140	Stichting Internet Domeinregistratie Nederland
AS12552	GlobalConnect AB
AS12637	SEEWEB s.r.l.
AS1267	WIND TRE S.P.A.
AS12713	OTEGlobe
AS12779	IT.Gate S.p.A.
AS12859	BIT BV
AS12969	Vodafone Iceland
AS1299	Arelion Sweden AB
AS13030	Init7 (Switzerland) Ltd.
AS13194	Bite IP Network
AS132337	Axclusive
AS13237	euNetworks GmbH
AS137409	GSL Networks Pty LTD
AS14537	Continent 8 LLC
AS14630	Invesco Group Services, Inc.
AS14840	BR.Digital Telecom
AS14907	Wikimedia Foundation Inc.
AS15535	Virtual Access Internet BV
AS15547	netplus.ch SA
AS15576	NTS workspace AG
AS15605	Connesi s.p.a.
AS15802	Emirates Integrated Telecommunications Company PJSC
AS15958	CETINdoo-NET
AS17557	Pakistan Telecommunication Company Limited
AS17639	Converge ICT Solutions Inc.
AS1764	Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH
AS18106	Viewqwest Pte Ltd
AS1828	Unitas Global
AS198150	SIACOM JSC
AS199524	G-Core Labs S.A.
AS199938	Netzwerge GmbH
AS20764	CJSC RASCOM
AS20932	Services Industriels de Geneve
AS210728	CYSO-AMS
AS21215	UNITED GROUP NETWORK INFRASTRUCTURE d.o.o. Beograd
AS212483	LEVEL EIGHTY-SIX COMMUNICATIONS LTD
AS212635	AS212635 Network
AS213241	TECHIT.BE SRL
AS24482	SG.GS
AS24940	Hetzner Online GmbH
AS24961	WIIT AG
AS25091	IP-Max SA
AS25160	Vorboss Limited
AS25220	equada network GmbH
AS263152	MIGO TELECOM
AS271253	LINK BRASIL TELECOMUNICACOES LTDA
AS28917	Fiord Networks, UAB
AS29049	Delta Telecom Ltd
AS29075	IELO Main Network
AS2914	NTT America, Inc.
AS29140	Hostserver GmbH
AS29169	GANDI SAS
AS293	ESnet
AS30844	Liquid Telecommunications Ltd
AS31027	GlobalConnect A/S
AS3214	xTom GmbH
AS3216	PJSC Vimpelcom
AS3333	Reseaux IP Europeens Network Coordination Centre (RIPE NCC)
AS3356	Level 3 Parent, LLC
AS33891	Core-Backbone GmbH
AS3399	Obenet AB
AS34019	Hivane Association
AS34177	CELESTE SAS
AS34288	Kantonsschule Zug
AS34927	iFog GmbH
AS35280	F5 Networks SARL
AS36236	NetActuate, Inc
AS36994	Vodacom
AS37100	SEACOM Limited
AS37468	Angola Cables
AS37497	Network Platforms (PTY) LTD
AS37721	Virtual Technologies & Solutions
AS38082	True International Gateway Co., Ltd.
AS38880	Micron21 Datacentre Pty Ltd
AS39120	Convergenze S.p.A.
AS39122	Blacknight Internet Solutions Limited
AS39351	31173 Services AB
AS39686	Eurofiber Nederland BV
AS41327	Fiber Telecom S.p.A.
AS42541	Fiberby ApS
AS42708	Glesys AB
AS43733	Viva Armenia CJSC
AS4455	IX Reach Ltd
AS44901	Belcloud LTD
AS45352	IP ServerOne Solutions Sdn Bhd
AS45489	Sri Lanka Telecom PLC, GLobal Peering
AS47147	Anexia Cloud Solutions GmbH
AS47957	Worldline IGSA SA
AS48185	team.blue NV
AS48362	Stadtwerke Feldkirch
AS48919	UACITY Ltd.
AS49544	i3D.net B.V
AS49605	Digital Telecommunication Services S.r.l.
AS50300	CustodianDC Limited
AS50629	LWLcom GmbH
AS50673	Serverius
AS50763	MCKAYCOM Wireless

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ASN API & Database

Upstreams

There are 4 upstreams for this ASN.

upstreams	Name
AS1299	Arelion Sweden AB
AS2914	NTT America, Inc.
AS3356	Level 3 Parent, LLC
AS6939	Hurricane Electric LLC

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Downstreams

There are 2 downstreams for this ASN.

Downstreams	Name
AS15535	Virtual Access Internet BV
AS210728	CYSO-AMS

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ASN API & Database

Pingable IPs

64 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
2a01:518:1093::1	AS25151 Cyso Group B.V.	`0.66ms` from Amsterdam, NL
93.94.230.233	AS25151 Cyso Group B.V.	`0.46ms` from Amsterdam, NL
81.24.2.254	AS25151 Cyso Group B.V.	`0.82ms` from Amsterdam, NL
37.46.143.102	AS25151 Cyso Group B.V.	`0.38ms` from Amsterdam, NL
81.24.8.127	AS25151 Cyso Group B.V.	`0.58ms` from Amsterdam, NL
2a01:518:1067::104	AS25151 Cyso Group B.V.	`1.64ms` from Amsterdam, NL
2a01:518:1090::1	AS25151 Cyso Group B.V.	`0.70ms` from Amsterdam, NL
85.158.202.1	AS25151 Cyso Group B.V.	`0.72ms` from Amsterdam, NL
93.94.227.173	AS25151 Cyso Group B.V.	`0.63ms` from Amsterdam, NL
93.94.231.97	AS25151 Cyso Group B.V.	`0.66ms` from Amsterdam, NL
85.158.207.1	AS25151 Cyso Group B.V.	`0.67ms` from Amsterdam, NL
81.24.4.50	AS25151 Cyso Group B.V.	`1.13ms` from Amsterdam, NL
109.235.79.198	AS25151 Cyso Group B.V.	`0.40ms` from Amsterdam, NL
2a01:518:1095::204	AS25151 Cyso Group B.V.	`0.97ms` from Amsterdam, NL
80.85.160.2	AS25151 Cyso Group B.V.	`0.58ms` from Amsterdam, NL
93.94.224.65	AS25151 Cyso Group B.V.	`0.65ms` from Amsterdam, NL
2a01:518:1054::82	AS25151 Cyso Group B.V.	`1.46ms` from Amsterdam, NL
37.46.142.11	AS25151 Cyso Group B.V.	`0.38ms` from Amsterdam, NL
85.158.203.129	AS25151 Cyso Group B.V.	`0.39ms` from Amsterdam, NL
81.24.0.129	AS25151 Cyso Group B.V.	`0.79ms` from Amsterdam, NL
37.46.138.99	AS25151 Cyso Group B.V.	`0.40ms` from Amsterdam, NL
37.46.136.2	AS25151 Cyso Group B.V.	`0.62ms` from Amsterdam, NL
109.235.74.143	AS25151 Cyso Group B.V.	`0.70ms` from Amsterdam, NL
109.235.77.49	AS25151 Cyso Group B.V.	`0.57ms` from Amsterdam, NL
85.158.204.179	AS25151 Cyso Group B.V.	`0.41ms` from Amsterdam, NL

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address	ASN	Details
41.109.61.255	AS36947 Telecom Algeria	`11.61ms` from Algiers, DZ
103.219.154.95	AS207083 HostSlim B.V.	`0.39ms` from Amsterdam, NL
114.245.180.127	AS4808 China Unicom Beijing Province Network	`3.92ms` from Beijing, CN
71.192.233.255	AS7922 Comcast Cable Communications, LLC	`9.75ms` from Boston, US
59.178.132.207	AS9829 National Internet Backbone	`5.89ms` from Delhi, IN
88.65.157.111	AS3209 Vodafone GmbH	`5.61ms` from Duesseldorf, DE
18.196.78.239	AS16509 Amazon.com, Inc.	`0.10ms` from Frankfurt am Main, DE
71.197.125.223	AS7922 Comcast Cable Communications, LLC	`6.70ms` from Fremont, US
1.188.67.15	AS4837 CHINA UNICOM China169 Backbone	`5.75ms` from Harbin, CN
185.43.47.111	AS61047 SAS KALANDA	`0.53ms` from Marseille, FR
73.96.222.95	AS7922 Comcast Cable Communications, LLC	`6.42ms` from Portland, US
39.65.93.79	AS4837 CHINA UNICOM China169 Backbone	`3.09ms` from Qingdao, CN
200.158.184.159	AS27699 TELEFÔNICA BRASIL S.A	`3.32ms` from Sao Paulo, BR
2.67.77.95	AS44034 Hi3G Access AB	`5.82ms` from Stockholm, SE
175.160.221.15	AS4837 CHINA UNICOM China169 Backbone	`2.03ms` from Tieling, CN
62.234.9.31	AS45090 Shenzhen Tencent Computer Systems Company Limited	`1.77ms` from Beijing, CN
44.229.116.207	AS16509 Amazon.com, Inc.	`0.19ms` from Boardman, US
23.115.244.79	AS7018 AT&T Enterprises, LLC	`9.99ms` from Chicago, US
136.114.127.159	AS396982 Google LLC	`0.13ms` from Council Bluffs, US
90.197.215.79	AS5607 Sky UK Limited	`4.17ms` from Erith, GB
183.63.140.15	AS4134 CHINANET-BACKBONE	`1.82ms` from Guangzhou, CN
8.217.23.223	AS45102 Alibaba (US) Technology Co., Ltd.	`0.72ms` from Hong Kong, HK
27.127.145.127	AS7524 ITEC HANKYU HANSHIN CO.,LTD.	`0.80ms` from Osaka, JP
3.235.244.79	AS14618 Amazon.com, Inc.	`0.36ms` from Reston, US
80.178.204.239	AS12400 Partner Communications Ltd.	`1.55ms` from Rosh Ha‘Ayin, IL

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this ASN. Learn more.

traceroute -a -n -q1 130.193.5.1

traceroute to 130.193.5.1 (130.193.5.1): 64 hops max, 52 byte packets

1 [AS202422] 185.101.139.2 0.072 ms

2 [AS199524] 92.223.126.129 0.585 ms

3 *

4 [] 80.249.209.155 76.672 ms

5 [AS25151] 109.235.77.43 1.038 ms

6 [AS25151] 130.193.5.1 1.369 ms

Measurement taken from

IPinfo ProbeNet in Amsterdam, NL

On April 13th 2026

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What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS25151 at robtex.

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