Autonomous System details

AS29145

Centaur GmbH  ·  centaur.de

Germany

Need more data or want to access it via API or data downloads? Sign up to get free access

Sign up for free ›

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

Get this data and more with IPinfo's powerful IP Ranges API - quickly and easily identify company-owned IP ranges.
IP Ranges API

WHOIS Details

Join for free to view WHOIS details › 

                                                ASHandle:       AS29145
                                                OrgID:          AS29145
                                                ASName:         AS29145
                                                ASNumber:       AS29145
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA
Get this data and more with IPinfo's WHOIS product - effortless access to POCs, ORGs, and Networks, for actionable intelligence.
IP WHOIS API & Database

Hosted Domains

There are 1,680 domain names hosted across 43 IP addresses on this ASN.

Join for free to explore hosted domains ›
IP Address Domain Domains on this IP
217.30.50.64 ████████ 837
217.30.50.148 ██████████ 235
217.30.50.192 ██████████ 161
217.30.63.12 ██████████ 112
217.30.49.143 ██████████ 25
217.30.50.211 ██████████ 25
217.30.63.63 ██████████ 19
217.30.50.149 ██████████ 16
217.30.49.197 ██████████ 16
217.30.50.63 ██████████ 14

Discover all domains hosted on a single IP address with IPinfo's powerful Hosted Domains (Reverse IP) solution.
Useful for Cybersecurity
Hosted Domains API & Database

Peers

There are 2 peers for this ASN.

Peers Name
AS3320 Deutsche Telekom AG
AS8881 1&1 Versatel GmbH
Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.
ASN API & Database

Upstreams

There are 2 upstreams for this ASN.

upstreams Name
AS3320 Deutsche Telekom AG
AS8881 1&1 Versatel GmbH
Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.
ASN API & Database

Downstreams

There are no downstreams for this ASN.

Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.
ASN API & Database

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 4.80ms from Frankfurt am Main, DE
217.30.63.10 AS29145 Centaur GmbH 4.51ms from Frankfurt am Main, DE
217.30.48.3 AS29145 Centaur GmbH 4.62ms from Frankfurt am Main, DE
217.30.53.73 AS29145 Centaur GmbH 4.51ms from Frankfurt am Main, DE
217.30.50.71 AS29145 Centaur GmbH 4.73ms from Frankfurt am Main, DE
217.30.49.214 AS29145 Centaur GmbH 4.67ms 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
50.107.101.137 AS5650 Frontier Communications of America, Inc. 11.86ms from Chicago, US
3.131.165.41 AS16509 Amazon.com, Inc. 0.13ms from Columbus, US
68.114.184.249 AS16787 Charter Communications LLC 14.55ms from Dallas, US
98.164.94.9 AS22773 Cox Communications Inc. 15.65ms from Dallas, US
87.146.51.41 AS3320 Deutsche Telekom AG 3.95ms from Duesseldorf, DE
210.21.29.105 AS17622 China Unicom Guangzhou network 1.92ms from Guangzhou, CN
186.70.154.25 AS14522 SERVICIOS DE TELECOMUNICACIONES SETEL S.A. (XTRIM EC) 1.03ms from Guayaquil, EC
75.127.58.25 AS21557 Cybernet Communications, Inc. 0.35ms from Los Angeles, US
195.53.72.185 AS3352 TELEFONICA DE ESPANA S.A.U. 1.71ms from Madrid, ES
83.174.144.89 AS48544 Tecnotel Servizi Tecnologici srl 7.60ms from Milan, IT
211.138.244.137 AS9808 China Mobile Communications Group Co., Ltd. 2.26ms from Nanning, CN
222.102.244.57 AS4766 Korea Telecom 6.69ms from Seoul, KR
192.169.31.153 AS25950 Beggs Telephone Company, Inc. 2.24ms from Tulsa, US
185.238.64.233 AS200125 BOZENA WOJTCZAK trading as INTERTOR.NET 2.54ms from Warsaw, PL
47.44.25.9 AS20115 Charter Communications LLC 1.68ms from Atlanta, US
174.69.6.41 AS22773 Cox Communications Inc. 19.90ms from Atlanta, US
34.81.138.57 AS396982 Google LLC 0.17ms from Chang-hua, TW
217.236.65.137 AS3320 Deutsche Telekom AG 3.63ms from Frankfurt am Main, DE
103.27.64.41 AS131385 VTV-VN 0.90ms from Hanoi, VN
12.131.184.233 AS7018 AT&T Enterprises, LLC 1.55ms from Houston, US
222.221.14.153 AS4134 CHINANET BACKBONE 0.97ms from Kunming, CN
217.169.108.41 AS20746 Telecom Italia S.p.A. 7.51ms from Milan, IT
176.111.252.121 AS57988 Foton Company Ltd 6.49ms from Moscow, RU
35.142.40.233 AS33363 Charter Communications, Inc 13.98ms from Orlando, US
202.11.2.105 AS2907 Research Organization of Information and Systems, National Institute of Informatics 3.64ms from Osaka, JP

Traceroute

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

$
traceroute -a -n -q1 -m6 217.30.54.128
traceroute to 217.30.54.128 (217.30.54.128): 6 hops max, 52 byte packets
2 *
4 *
5 *
6 *
Measurement taken from IPinfo ProbeNet in Zhengzhou, 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.

Data built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

Get Started for Free Contact Sales
IPinfo for all your IP geolocation needs

Our IP tools

Explore all tools
What is my IP

What is my IP

Test our data accuracy by viewing insights from your IP address.

See your IP address
Map IPs

Map IPs

Paste up to 500,000 IPs to see where they're located on a map.

Try Map IPs
Summarize IPs

Summarize IPs

Use our data visualization tool to create a visual overview of multiple IPs.

Try Summarize IPs