AS50837 -









IP Addresses




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Hosted Domains

There are 2,369 domain names hosted across 562 IP addresses on this ASN.

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Whois Details

as-block:       AS47104 - AS52223
descr:          RIPE NCC ASN block
remarks:        These AS Numbers are assigned to network operators in the RIPE NCC service region.
mnt-by:         RIPE-NCC-HM-MNT
created:        2018-11-22T15:27:34Z
last-modified:  2018-11-22T15:27:34Z
source:         RIPE

aut-num:        AS50837
as-name:        CLOUDSIGMA-AS
org:            ORG-CA1011-RIPE
import:         from AS174 accept any
import:         from AS3356 accept any
import:         from AS22911 accept any
import:         from AS23005 accept any
import:         from AS3257 accept any
import:         from AS559 accept any
import:         from AS3257 accept any
import:         from AS6695 accept any
import:         from AS6777 accept any
import:         from AS6772 accept any
import:         from AS6939 accept any
import:         from AS12399 accept any
import:         from AS13101 accept any
import:         from AS20893 accept any
import:         from AS20940 accept any
import:         from AS21232 accept any
import:         from AS29222 accept any
import:         from AS31662 accept any
import:         from AS34288 accept any
import:         from AS39912 accept any
import:         from AS41692 accept any
import:         from AS42476 accept any
import:         from AS47018 accept any
import:         from AS204281 accept any
import:         from AS64462 accept AS64462
import:         from AS39184 accept any
import:         from AS42956 accept any
import:         from AS48622 accept any
import:         from AS15612 accept any
import:         from AS25091 accept any
import:         from AS3356 accept any
export:         to AS174 announce AS-CSOUT
export:         to AS3356 announce AS-CSOUT
export:         to AS22911 announce AS-CSOUT
export:         to AS23005 announce AS-CSOUT
export:         to AS3257 announce AS-CSOUT
export:         to AS559 announce AS-CSOUT
export:         to AS3257 announce AS-CSOUT
export:         to AS6695 announce AS-CSOUT
export:         to AS6777 announce AS-CSOUT
export:         to AS6772 announce AS-CSOUT
export:         to AS6939 announce AS-CSOUT
export:         to AS12399 announce AS-CSOUT
export:         to AS13101 announce AS-CSOUT
export:         to AS20893 announce AS-CSOUT
export:         to AS20940 announce AS-CSOUT
export:         to AS21232 announce AS-CSOUT
export:         to AS29222 announce AS-CSOUT
export:         to AS31662 announce AS-CSOUT
export:         to AS34288 announce AS-CSOUT
export:         to AS39912 announce AS-CSOUT
export:         to AS41692 announce AS-CSOUT
export:         to AS42476 announce AS-CSOUT
export:         to AS47018 announce AS-CSOUT
export:         to AS204281 announce AS-CSOUT
export:         to AS39184 announce AS-CSOUT
export:         to AS42956 announce AS-CSOUT
export:         to AS64462 announce ANY
export:         to AS48622 announce ANY
export:         to AS15612 announce ANY
export:         to AS25091 announce ANY
export:         to AS3356 announce ANY
admin-c:        CRDm7-RIPE
tech-c:         CRDm7-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         MNT-CLOUDSIGMA
created:        2010-04-07T12:01:59Z
last-modified:  2018-12-17T11:27:55Z
source:         RIPE

organisation:   ORG-CA1011-RIPE
org-name:       CLOUDSIGMA AG
org-type:       LIR
address:        Badenerstrasse 549
address:        8048
address:        Zurich
address:        SWITZERLAND
phone:          +41445853907
fax-no:         +41447326043
admin-c:        MP31731-RIPE
abuse-c:        CRDm7-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        MNT-CLOUDSIGMA
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         MNT-CLOUDSIGMA
created:        2010-03-24T13:30:45Z
last-modified:  2017-12-18T13:44:22Z
source:         RIPE

role:           CloudSigma RIPE DB maintainer
address:        Badenerstrasse 549, 8048 Zurich, Switzerland
admin-c:        PB10840-RIPE
admin-c:        MP31731-RIPE
tech-c:         PB10840-RIPE
tech-c:         MP31731-RIPE
nic-hdl:        CRDm7-RIPE
mnt-by:         MNT-CLOUDSIGMA
created:        2011-04-05T13:06:46Z
last-modified:  2017-12-18T13:40:57Z
source:         RIPE

IP Address Ranges

Netblock Description Num IPs Cloud Sigma 256 Cloud Sigma 256 Cloud Sigma 256 Cloud Sigma 256 Cloud Sigma 256 Cloud Sigma 256 Cloud Sigma 256 Cloud Sigma 256 CLOUDSIGMA AG 2,048 CLOUDSIGMA ASSIGNMENT 256
Netblock Description
2a01:9980:1::/48 CloudSIgma-SJC
2a01:9980:2::/48 CloudSigma-WDC
2a01:9980:3::/48 CloudSigma-MIA
2a01:9980:a::/48 CloudSigma-ZRH
2a01:9980:b::/48 CloudSIgma-TBC
2a01:9980:c::/48 CloudSIgma-Zone2

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Hosted Domains

There are 2,369 domain names hosted across 562 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP 351 98 89 75 74 63 49 46 45 44


There are 95 peers for this ASN.

Sandro Bolliger AS12307
VTX Services SA AS12350
IT.Gate S.p.A. AS12779
BIT BV AS12859
ennit server GmbH AS13101
Nerim SAS AS13193
euNetworks GmbH AS13237 SA AS15547
Connesi s.p.a. AS15605


There are 10 upstreams for this ASN.

ServeCentric Ltd. AS15612
Cogent Communications AS174
IP-Max SA AS25091
GTT Communications Inc. AS3257
Level 3 Parent, LLC AS3356
UltraNET Ltd AS39184
NET1 Ltd. AS43561
Etihad Atheeb Telecom Company AS47794
Hurricane Electric LLC AS6939


There are 2 downstreams for this ASN.

Covenant Eyes, Inc. AS47018
Stephan Roland Wolf AS64462

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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 AS50837 at robtex.

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