37.46.136.0/21

AS25151 · Cyso Group B.V.

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Summary

Country	Netherlands
Domain	cyso.net
ASN	AS25151
Registry	RIPE
ID	NL-CYSO-20120120

WHOIS Details

inetnum:        37.46.136.0 - 37.46.143.255
netname:        NL-CYSO-20120120
country:        NL
org:            ORG-CMH1-RIPE
admin-c:        CYSO-RIPE
tech-c:         CYSO-RIPE
status:         ALLOCATED PA
notify:         [email protected]
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         CYSO-MNT
mnt-lower:      CYSO-MNT
mnt-domains:    CYSO-MNT
mnt-routes:     CYSO-MNT
created:        2012-01-20T11:55:10Z
last-modified:  2025-03-13T16:19:26Z
source:         RIPE
abuse-email:    [email protected]
abuse-c:        CYSO-RIPE
abuse-org:      ORG-CMH1-RIPE

organisation:   ORG-CMH1-RIPE
org-name:       Cyso Group B.V.
country:        NL
org-type:       LIR
address:        Wognumsebuurt 3
address:        1817 BH
address:        Alkmaar
address:        NETHERLANDS
phone:          +31 72 751 3400
fax-no:         +31 72 751 3401
e-mail:         [email protected]
admin-c:        CYSO-RIPE
admin-c:        SCAW666-RIPE
admin-c:        TSW-RIPE
abuse-c:        CYSO-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        CYSO-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         CYSO-MNT
created:        2005-01-13T06:11:10Z
last-modified:  2025-03-13T15:51:08Z
source:         RIPE
abuse-email:    [email protected]
abuse-c:        CYSO-RIPE
abuse-org:      undefined

role:           Cyso Hosting B.V. Technical Role Account
address:        Cyso Managed Hosting B.V.
address:        Wognumsebuurt 3
address:        1817 BH Alkmaar
address:        The Netherlands
phone:          +31 72 7513400
fax-no:         +31 72 7513401
e-mail:         [email protected]
admin-c:        TSW-RIPE
admin-c:        SCAW666-RIPE
admin-c:        PIJN1-RIPE
tech-c:         TSW-RIPE
tech-c:         PIJN1-RIPE
tech-c:         SCAW666-RIPE
nic-hdl:        CYSO-RIPE
mnt-by:         CYSO-MNT
abuse-mailbox:  [email protected]
remarks:        --
remarks:        Abuse issues : [email protected]
remarks:        Other technical issues : [email protected]
remarks:        --
created:        2002-08-05T11:12:02Z
last-modified:  2019-11-04T12:45:28Z
source:         RIPE

route:          37.46.136.0/21
descr:          Cyso Hosting B.V. Block
origin:         AS25151
mnt-by:         CYSO-MNT
mnt-lower:      CYSO-MNT
mnt-routes:     CYSO-MNT
created:        2012-01-25T14:37:42Z
last-modified:  2012-08-09T09:53:34Z
source:         RIPE

Nearby Ranges

BGP prefixes that overlap with 37.46.0.0/16

Range	ASN	Company	Num of IPs
37.46.160.0/19	AS33885	Telenor Sverige AB	8,192
37.46.32.0/20	AS47956	XFone 018 Ltd	4,096
37.46.88.0/21	AS57929	Octanio Sistemas Informaticos SL	2,048
37.46.104.0/21	AS198561	Legal Entity Under Public Law Financial Analytical Service	2,048
37.46.208.0/21	AS34222	ZONER a.s.	2,048
37.46.32.0/21	AS47956	Dialup Users	2,048
37.46.40.0/21	AS47956	Dialup Users	2,048
37.46.72.0/21	AS15699	Adam EcoTech, S.A	2,048
37.46.200.0/21	AS39326	Syntura Group Limited	2,048
37.46.0.0/21	AS15830	EQUINIX (SERVICES) LIMITED	2,048
37.46.80.0/21	AS29134	Webglobe, s.r.o.	2,048
37.46.152.0/21	AS57677	SINTELEC INFORMATICA, S.L.	2,048
37.46.144.0/22	AS8758	Iway AG	1,024
37.46.48.0/22	AS43370	OBIT-telecommunications, LLC	1,024
37.46.96.0/22	AS56568	IKS-COM LLP	1,024
37.46.52.0/22	AS24739	JSC Severen-Telecom	1,024
37.46.192.0/22	AS6206	Netrouting Cloud Services - Join The Cloud	1,024
37.46.104.0/23	AS198561	Legal Entity Under Public Law Financial Analytical Service	512
37.46.243.0/24	AS13188	CONTENT DELIVERY NETWORK LTD	256
37.46.244.0/24	AS13188	CONTENT DELIVERY NETWORK LTD	256
37.46.245.0/24	AS13188	CONTENT DELIVERY NETWORK LTD	256
37.46.246.0/24	AS13188	CONTENT DELIVERY NETWORK LTD	256
37.46.247.0/24	AS13188	CONTENT DELIVERY NETWORK LTD	256
37.46.248.0/24	AS13188	CONTENT DELIVERY NETWORK LTD	256
37.46.249.0/24	AS13188	CONTENT DELIVERY NETWORK LTD	256
37.46.250.0/24	AS13188	CONTENT DELIVERY NETWORK LTD	256
37.46.251.0/24	AS13188	CONTENT DELIVERY NETWORK LTD	256
37.46.252.0/24	AS13188	CONTENT DELIVERY NETWORK LTD	256
37.46.253.0/24	AS13188	CONTENT DELIVERY NETWORK LTD	256
37.46.254.0/24	AS13188	CONTENT DELIVERY NETWORK LTD	256
37.46.255.0/24	AS13188	CONTENT DELIVERY NETWORK LTD	256
37.46.24.0/24	AS14062	AKQA Limited	256
37.46.101.0/24	AS198967	OEDIV Oetker Daten-und Informationsverarbeitung KG	256
37.46.102.0/24	AS198967	OEDIV Oetker Daten-und Informationsverarbeitung KG	256
37.46.103.0/24	AS198967	OEDIV Oetker Daten-und Informationsverarbeitung KG	256
37.46.60.0/24	AS199072	Center of Computor Research JSC	256
37.46.16.0/24	AS199785	Cloud Hosting Solutions, Limited.	256
37.46.17.0/24	AS199785	Cloud Hosting Solutions, Limited.	256
37.46.18.0/24	AS199785	Cloud Hosting Solutions, Limited.	256
37.46.19.0/24	AS199785	Cloud Hosting Solutions, Limited.	256
37.46.64.0/24	AS200864	Rackserver Ltd.	256
37.46.65.0/24	AS200864	Rackserver Ltd.	256
37.46.66.0/24	AS200864	Rackserver Ltd.	256
37.46.67.0/24	AS200864	Rackserver Ltd.	256
37.46.68.0/24	AS200864	Cogitnet Kft.	256
37.46.69.0/24	AS200864	Cogitnet Kft.	256
37.46.70.0/24	AS200864	Cogitnet Kft.	256
37.46.71.0/24	AS200864	Cogitnet Kft.	256
37.46.12.0/24	AS209749	Polska Kompania Leasingowa sp. z o.o.	256

Hosted domains

There are 26,123 domain names hosted across 126 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
37.46.140.12	tandimplant.nl	8233
37.46.140.9	quayn.eu	2377
37.46.140.23	kijkonderzoek.nl	2083
37.46.140.24	feskull.com	1846
37.46.140.16	movemobility.nl	1582
37.46.140.26	stsn.nl	1371
37.46.140.20	opnivo.nl	1268
37.46.140.5	fransendakspecialisten.nl	1217
37.46.140.2	tand-implant.nl	1191
37.46.140.22	amstelredam.nl	1168
37.46.138.39	boom.nl	673
37.46.140.21	proplanet.nl	611
37.46.140.17	fimih.com	581
37.46.142.227	giant-notredame.fr	446
37.46.140.7	nextpresso.nl	367
37.46.140.10	caleidoscoop.nl	334
37.46.140.25	beenshafkamp.nl	304
37.46.142.226	giant-bicycles.com	198
37.46.138.48	tendens-tr.nl	124
37.46.138.2	kliksafe.nl	102

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.

Useful for Cybersecurity

Read more

Pingable IPs

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

IP Address	ASN	Details
37.46.141.206	AS25151 Cyso Group B.V.	`0.45ms` from Amsterdam, NL
37.46.143.104	AS25151 Cyso Group B.V.	`0.43ms` from Amsterdam, NL
37.46.142.3	AS25151 Cyso Group B.V.	`0.40ms` from Amsterdam, NL
37.46.140.133	AS25151 Cyso Group B.V.	`0.45ms` from Amsterdam, NL
37.46.139.65	AS25151 Cyso Group B.V.	`0.47ms` from Amsterdam, NL
37.46.137.1	AS25151 Cyso Group B.V.	`0.56ms` from Amsterdam, NL
37.46.138.100	AS25151 Cyso Group B.V.	`0.42ms` from Amsterdam, NL
37.46.136.1	AS25151 Cyso Group B.V.	`0.62ms` 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
77.170.233.85	AS1136 KPN B.V.	`3.96ms` from Amsterdam, NL
75.243.117.85	AS6167 Verizon Business	`11.06ms` from Atlanta, US
118.172.206.69	AS23969 TOT Public Company Limited	`6.63ms` from Bangkok, TH
52.38.159.181	AS16509 Amazon.com, Inc.	`0.16ms` from Boardman, US
173.48.243.181	AS701 Verizon Business	`2.31ms` from Boston, US
184.176.17.53	AS22773 Cox Communications Inc.	`5.81ms` from Dallas, US
104.15.50.181	AS7018 AT&T Enterprises, LLC	`7.49ms` from Dallas, US
168.196.231.5	AS270941 QUEIROZ & CAVALCANTE TELECOMUNICACOES LTDA	`14.15ms` from Fortaleza, BR
123.253.227.197	AS133178 SAITEIDC Limited	`1.90ms` from Hong Kong, HK
58.230.96.101	AS9318 SK Broadband Co Ltd	`1.37ms` from Incheon, KR
69.5.3.133	AS150436 Byteplus Pte. Ltd.	`1.42ms` from Jakarta, ID
68.13.171.53	AS22773 Cox Communications Inc.	`8.03ms` from Kansas City, US
178.74.204.149	AS49223 EVEREST TV AND RADIO COMPANY LLC	`2.99ms` from Kyiv, UA
2.3.60.85	AS3215 Orange S.A.	`17.10ms` from Lyon, FR
67.81.57.5	AS6128 Cablevision Systems Corp.	`7.58ms` from New York City, US
60.94.246.165	AS17676 SoftBank Corp.	`4.24ms` from Osaka, JP
46.226.130.133	AS34863 HEXANET SAS	`1.23ms` from Paris, FR
176.171.77.101	AS5410 Bouygues Telecom SA	`5.20ms` from Paris, FR
44.195.154.37	AS14618 Amazon.com, Inc.	`0.22ms` from Reston, US
188.48.211.133	AS25019 Saudi Telecom Company JSC	`1.82ms` from Riyadh, SA
128.189.181.197	AS393249 University of British Columbia	`4.70ms` from Seattle, US
221.183.190.21	AS9808 China Mobile Communications Group Co., Ltd.	`1.17ms` from Shanghai, CN
80.52.239.149	AS5617 Orange Polska Spolka Akcyjna	`1.23ms` from Warsaw, PL
5.166.44.165	AS51604 JSC ER-Telecom Holding	`12.54ms` from Yekaterinburg, RU
136.47.214.133	AS16591 Google Fiber Inc.	`6.85ms` from Ashburn, US

Traceroute

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

traceroute -a -n -q1 -f3 37.46.139.81

traceroute to 37.46.139.81 (37.46.139.81): 64 hops max, 52 byte packets

3 [] 80.249.209.155 13.382 ms

4 [AS25151] 37.46.139.81 0.526 ms

Measurement taken from

IPinfo ProbeNet in Amsterdam, NL

On January 31st 2026

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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