Autonomous System details

AS29145

Centaur GmbH  ·  centaur.de

Germany

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AS29145 – Centaur GmbH

Field Value
Country Germany
Website centaur.de
Hosted domains 1,679
IPv4 addresses 4,096
IPv6 addresses 0
ASN type Hosting
Registry ripe
Allocated 23 years ago on Jun 16, 2003
Updated 5 months ago on Aug 13, 2025

IP Ranges

Netblock Company Num of IPs
217.30.48.0/20 Centaur GmbH 4,096

There are no known IPv6 addresses belonging to this network

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WHOIS Details

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                                                ASHandle:       AS29145
                                                OrgID:          AS29145
                                                ASName:         AS29145
                                                ASNumber:       AS29145
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA
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Hosted Domains

There are 1,679 domain names hosted across 45 IP addresses on this ASN.

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IP Address Domain Domains on this IP
217.30.50.64 ████████ 857
217.30.50.148 ██████████ 261
217.30.50.192 ██████████ 204
217.30.63.12 ██████████ 134
217.30.49.143 ██████████ 38
217.30.50.141 ██████████ 25
217.30.50.211 ██████████ 25
217.30.63.63 ██████████ 19
217.30.49.197 ██████████ 16
217.30.50.149 ██████████ 16

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Peers

There are 2 peers for this ASN.

Peers Name
AS3320 Deutsche Telekom AG
AS8881 1&1 Versatel GmbH
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Upstreams

There are 2 upstreams for this ASN.

upstreams Name
AS3320 Deutsche Telekom AG
AS8881 1&1 Versatel GmbH
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Downstreams

There are no downstreams for this ASN.

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Pingable IPs

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

IP Address ASN Details
217.30.49.105 AS29145 Centaur GmbH 4.80ms from Frankfurt am Main, DE
217.30.52.1 AS29145 Centaur GmbH 4.73ms from Frankfurt am Main, DE
217.30.50.10 AS29145 Centaur GmbH 4.72ms from Frankfurt am Main, DE
217.30.48.3 AS29145 Centaur GmbH 4.75ms from Frankfurt am Main, DE
217.30.53.73 AS29145 Centaur GmbH 4.65ms from Frankfurt am Main, DE
217.30.63.10 AS29145 Centaur GmbH 4.78ms from Frankfurt am Main, DE

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
20.241.158.201 AS8075 Microsoft Corporation 0.41ms from Ashburn, US
71.45.225.89 AS33363 Charter Communications, Inc 15.65ms from Atlanta, US
217.111.229.153 AS8220 COLT Technology Services Group Limited 0.83ms from Brussels, BE
69.230.70.41 AS7018 AT&T Enterprises, LLC 2.30ms from Chicago, US
27.7.217.9 AS17488 Hathway IP Over Cable Internet 1.46ms from Delhi, IN
20.135.68.57 AS8075 Microsoft Corporation 0.37ms from Des Moines, US
96.64.8.57 AS7922 Comcast Cable Communications, LLC 9.60ms from Detroit, US
94.201.109.201 AS15802 Emirates Integrated Telecommunications Company PJSC 3.07ms from Dubai, AE
213.114.121.57 AS8434 Telenor Sverige AB 4.99ms from Falkenberg, SE
193.246.57.9 AS3303 Swisscom (Switzerland) Ltd 0.85ms from Geneve, CH
125.93.48.9 AS4134 CHINANET-BACKBONE 5.06ms from Guangzhou, CN
70.115.67.233 AS11427 Charter Communications Inc 8.66ms from Houston, US
93.112.187.153 AS25019 Saudi Telecom Company JSC 3.60ms from Jeddah, SA
45.50.225.25 AS20001 Charter Communications Inc 5.27ms from Los Angeles, US
58.90.243.169 AS4713 NTT DOCOMO BUSINESS,Inc. 18.32ms from Osaka, JP
187.8.216.169 AS10429 TELEFÔNICA BRASIL S.A 1.86ms from Osasco, BR
84.215.10.201 AS25400 Telia Norge AS 7.32ms from Sandefjord, NO
124.254.71.41 AS4826 Vocus Connect International Backbone 0.38ms from Sydney, AU
126.16.239.169 AS17676 SoftBank Corp. 5.09ms from Tokyo, JP
126.117.243.9 AS17676 SoftBank Corp. 3.17ms from Tokyo, JP
211.18.222.89 AS2516 KDDI CORPORATION 3.72ms from Tokyo, JP
188.121.10.121 AS49242 Internet Union Sp. z o.o. 5.83ms from Warsaw, PL
162.81.241.41 AS33566 Knoxville Utilities Board 7.08ms from Atlanta, US
201.2.108.9 AS8167 V tal 1.26ms from Brasilia, BR
201.59.203.137 AS7738 V tal 9.99ms from Fortaleza, BR

Traceroute

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

$
traceroute -a -n -q1 -f4 -m7 217.30.54.228
traceroute to 217.30.54.228 (217.30.54.228): 7 hops max, 52 byte packets
4 [] 103.41.143.129 1.244 ms
5 *
6 *
7 *
Measurement taken from IPinfo ProbeNet in Qingdao, CN
On

Related Networks

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 AS29145 at robtex.

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