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 1,680
IPv4 addresses 4,096
IPv6 addresses 0
ASN type Hosting
Registry ripe
Allocated 23 years ago on Jun 16, 2003
Updated 8 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 1,680 domain names hosted across 43 IP addresses on this ASN.

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IP Address Domain Domains on this IP
217.30.50.64 ████████ 859
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
217.30.50.149 ██████████ 16
217.30.49.197 ██████████ 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
217.30.52.1 AS29145 Centaur GmbH 4.69ms from Frankfurt am Main, DE
217.30.53.73 AS29145 Centaur GmbH 4.54ms from Frankfurt am Main, DE
217.30.49.77 AS29145 Centaur GmbH 4.79ms from Frankfurt am Main, DE
217.30.63.10 AS29145 Centaur GmbH 4.67ms from Frankfurt am Main, DE
217.30.50.44 AS29145 Centaur GmbH 4.64ms from Frankfurt am Main, DE
217.30.48.3 AS29145 Centaur GmbH 4.81ms 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
5.188.243.89 AS21299 Kar-Tel LLC 9.42ms from Almaty, KZ
142.215.55.153 AS15830 Equinix (EMEA) Acquisition Enterprises B.V. 0.40ms from Ashburn, US
172.102.208.73 AS46261 QuickPacket, LLC 0.18ms from Ashburn, US
170.124.140.121 AS6079 RCN 0.67ms from Ashburn, US
101.17.63.89 AS4837 CHINA UNICOM China169 Backbone 11.51ms from Beijing, CN
182.76.98.9 AS9498 BHARTI Airtel Ltd. 1.38ms from Bengaluru, IN
20.118.6.41 AS8075 Microsoft Corporation 0.33ms from Des Moines, US
199.45.172.9 AS397050 IdeaTek Telcom, LLC 7.03ms from Kansas City, US
37.11.83.9 AS12479 Orange Espagne SA 9.92ms from Madrid, ES
92.171.33.169 AS3215 Orange S.A. 12.28ms from Marseille, FR
83.174.144.89 AS48544 Tecnotel Servizi Tecnologici srl 7.93ms from Milan, IT
69.70.170.201 AS5769 Videotron Ltee 3.58ms from Montreal, CA
73.121.244.57 AS7922 Comcast Cable Communications, LLC 15.42ms from Murfreesboro, US
69.124.213.249 AS6128 Cablevision Systems Corp. 2.19ms from New York City, US
173.52.167.153 AS701 Verizon Business 3.02ms from New York City, US
111.238.2.89 AS2516 KDDI CORPORATION 1.30ms from Osaka, JP
81.197.93.249 AS719 Elisa Oyj 10.91ms from Oulu, FI
59.31.241.89 AS4766 Korea Telecom 2.54ms from Seoul, KR
175.199.252.169 AS4766 Korea Telecom 6.55ms from Seoul, KR
122.51.64.73 AS45090 Shenzhen Tencent Computer Systems Company Limited 0.64ms from Shanghai, CN
52.193.255.185 AS16509 Amazon.com, Inc. 0.17ms from Tokyo, JP
139.171.154.41 AS7029 Windstream Communications LLC 0.74ms from Ashburn, US
40.76.77.57 AS8075 Microsoft Corporation 0.55ms from Ashburn, US
47.44.25.9 AS20115 Charter Communications LLC 1.63ms from Atlanta, US
58.20.77.185 AS4837 CHINA UNICOM China169 Backbone 3.93ms from Changsha, CN

Traceroute

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

$
traceroute -a -n -q1 -m5 217.30.55.12
traceroute to 217.30.55.12 (217.30.55.12): 5 hops max, 52 byte packets
1 [AS51248] 193.161.86.1 5.282 ms
2 [AS51248] 185.8.57.10 0.358 ms
3 *
4 *
5 *
Measurement taken from IPinfo ProbeNet in Veseli nad Moravou, CZ
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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