AS number details

AS51191

Core-Backbone GmbH  ·  core-backbone.com

Germany

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

Sign up for free ›

AS51191 – Core-Backbone GmbH

Field Value
Country Germany
Website core-backbone.com
Hosted domains 136,766
Number of IPv4 7,168
Number of IPv6 633,907,507,069,848,495,532,231,622,656
ASN type Hosting
Registry ripe
Allocated 15 years ago on Feb 07, 2011
Updated 2 months ago on Jun 25, 2025

IP Ranges

Netblock Company Num of IPs
130.185.104.0/21 Core-Backbone GmbH 2,048
195.138.240.0/21 Core-Backbone GmbH 2,048
185.108.216.0/22 Core-Backbone GmbH 1,024
185.24.68.0/22 Core-Backbone GmbH 1,024
91.232.96.0/23 Core-Backbone GmbH 512
185.169.24.0/24 Shellrent S.p.A. 256
185.169.25.0/24 Shellrent S.p.A. 256
195.138.244.0/24 Core-Backbone GmbH 256
Netblock Company
2a06:4b00::/29 Core-Backbone GmbH
2a01:4a0:2000::/48 Core-Backbone GmbH
2a01:4a0:2001::/48 Core-Backbone GmbH
2a01:4a0:2002::/48 Core-Backbone GmbH
2a06:4b01:3300::/48 Core-Backbone GmbH
2a06:4b01:3301::/48 Core-Backbone GmbH
2a06:4b01:3302::/48 Core-Backbone GmbH
2a06:4b01:3303::/48 Core-Backbone GmbH
2a06:4b01:3304::/48 Core-Backbone GmbH
2a06:4b01:3305::/48 Core-Backbone GmbH
2a06:4b01:3306::/48 Core-Backbone GmbH
2a06:4b01:3307::/48 Core-Backbone GmbH
2a06:4b01:3308::/48 Core-Backbone GmbH
2a06:4b01:3309::/48 Core-Backbone GmbH
2a06:4b01:330a::/48 Core-Backbone GmbH
2a06:4b01:330b::/48 Core-Backbone GmbH
2a06:4b01:330c::/48 Core-Backbone GmbH
2a06:4b01:330d::/48 Core-Backbone GmbH
2a06:4b01:330e::/48 Core-Backbone GmbH
2a06:4b01:330f::/48 Core-Backbone GmbH
2a06:4b01:3310::/48 Core-Backbone GmbH
2a06:4b01:3311::/48 Core-Backbone GmbH
2a06:4b01:3312::/48 Core-Backbone GmbH
2a06:4b01:3313::/48 Core-Backbone GmbH
2a06:4b01:3314::/48 Core-Backbone GmbH
2a06:4b01:3315::/48 Core-Backbone GmbH
2a06:4b01:3316::/48 Core-Backbone GmbH
2a06:4b01:3318::/48 Core-Backbone GmbH
2a06:4b01:3319::/48 Core-Backbone GmbH
2a06:4b01:331a::/48 Core-Backbone GmbH
2a06:4b01:331b::/48 Core-Backbone GmbH
2a06:4b01:331c::/48 Core-Backbone GmbH
2a06:4b01:331d::/48 Core-Backbone GmbH
2a06:4b01:331e::/48 Core-Backbone GmbH
2a06:4b01:331f::/48 Core-Backbone GmbH
2a06:4b01:3320::/48 Core-Backbone GmbH
2a06:4b01:3321::/48 Core-Backbone GmbH
2a06:4b01:3400::/48 Core-Backbone GmbH
2a06:4b01:3403::/48 Core-Backbone GmbH
2a06:4b01:3404::/48 Core-Backbone GmbH
2a06:4b01:340c::/48 Core-Backbone GmbH
2a06:4b01:3500::/48 Core-Backbone GmbH
2a06:4b01:3501::/48 Core-Backbone GmbH
2a06:4b01:3502::/48 Core-Backbone GmbH
2a06:4b01:3503::/48 Core-Backbone GmbH
2a06:4b01:3504::/48 Core-Backbone GmbH
2a06:4b01:3505::/48 Core-Backbone GmbH
2a06:4b01:3506::/48 Core-Backbone GmbH
2a06:4b01:3507::/48 Core-Backbone GmbH
2a06:4b01:3508::/48 Core-Backbone GmbH
2a06:4b01:350c::/48 Core-Backbone GmbH
2a06:4b01:350d::/48 Core-Backbone GmbH
2a06:4b01:350e::/48 Core-Backbone GmbH
2a06:4b01:3510::/48 Core-Backbone GmbH
2a06:4b01:3511::/48 Core-Backbone GmbH
2a06:4b01:3512::/48 Core-Backbone GmbH
2a06:4b01:3513::/48 Core-Backbone GmbH
2a06:4b01:3514::/48 Core-Backbone GmbH
2a06:4b01:3515::/48 Core-Backbone GmbH
2a06:4b01:3518::/48 Core-Backbone GmbH
2a06:4b01:3519::/48 Core-Backbone GmbH
2a06:4b01:351a::/48 Core-Backbone GmbH
2a06:4b01:351b::/48 Core-Backbone GmbH
2a06:4b01:351c::/48 Core-Backbone GmbH
2a06:4b01:351d::/48 Core-Backbone GmbH
2a06:4b01:351e::/48 Core-Backbone GmbH
2a06:4b01:351f::/48 Core-Backbone GmbH
2a06:4b01:3520::/48 Core-Backbone GmbH
2a06:4b01:3521::/48 Core-Backbone GmbH

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:       AS51191
                                                OrgID:          AS51191
                                                ASName:         AS51191
                                                ASNumber:       AS51191
                                                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 IP Whois Database Download

Hosted Domains

There are 136,766 domain names hosted across 264 IP addresses on this ASN.

Join for free to explore hosted domains ›
IP Address Domain Domains on this IP
130.185.109.77 ██████████ 123,061
130.185.109.78 ██████████ 8,888
185.24.68.9 ██████████ 4,157
195.138.245.250 ██████████ 82
130.185.109.43 ██████████ 55
185.24.68.234 ██████████ 53
130.185.109.2 ██████████ 42
130.185.104.82 ██████████ 39
130.185.108.81 ██████████ 24
185.169.25.22 ██████████ 22

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

Peers

There are 6 peers for this ASN.

Peers Name
AS199524 G-Core Labs S.A.
AS20473 The Constant Company, LLC
AS33891 Core-Backbone GmbH
AS56662 Marcin Gondek
AS60068 Datacamp Limited
AS8529 Zain Omantel International FZ-LLC
Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.
ASN API ASN Database Download

Upstreams

There are 4 upstreams for this ASN.

upstreams Name
AS199524 G-Core Labs S.A.
AS20473 The Constant Company, LLC
AS33891 Core-Backbone GmbH
AS60068 Datacamp Limited
Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.
ASN API ASN Database Download

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 ASN Database Download

Pingable IPs

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

IP Address ASN Details
91.232.96.3 AS51191 Core-Backbone GmbH 2.84ms from Frankfurt am Main, DE
2a06:4b01:3311::1 AS51191 Core-Backbone GmbH 0.36ms from Amsterdam, NL
130.185.109.130 AS51191 Core-Backbone GmbH 2.71ms from Frankfurt am Main, DE
2a06:4b01:3510::1 AS51191 Core-Backbone GmbH 0.64ms from London, GB
2a06:4b01:3504::1 AS51191 Core-Backbone GmbH 1.25ms from London, GB
185.108.219.255 AS51191 Core-Backbone GmbH 3.63ms from Frankfurt am Main, DE
2a06:4b01:3314::1 AS51191 Core-Backbone GmbH 0.35ms from Amsterdam, NL
2a06:4b01:3514::1 AS51191 Core-Backbone GmbH 0.65ms from London, GB
2a06:4b01:3503::1 AS51191 Core-Backbone GmbH 1.14ms from London, GB
130.185.108.70 AS51191 Core-Backbone GmbH 2.70ms from Frankfurt am Main, DE
2a06:4b01:3312::1 AS51191 Core-Backbone GmbH 0.35ms from Amsterdam, NL
185.169.25.132 AS51191 Core-Backbone GmbH 2.68ms from Frankfurt am Main, DE
185.24.68.21 AS51191 Core-Backbone GmbH 2.70ms from Frankfurt am Main, DE
2a06:4b01:3505::1 AS51191 Core-Backbone GmbH 0.26ms from London, GB
2a06:4b01:330c::1 AS51191 Core-Backbone GmbH 0.34ms from Amsterdam, NL
2a06:4b01:330d::1 AS51191 Core-Backbone GmbH 0.34ms from Amsterdam, NL
2a06:4b01:3515::1 AS51191 Core-Backbone GmbH 7.95ms from Amsterdam, NL
195.138.245.235 AS51191 Core-Backbone GmbH 2.73ms from Frankfurt am Main, DE
2a06:4b01:3310::1 AS51191 Core-Backbone GmbH 0.34ms from Amsterdam, NL
2a06:4b01:3316::1 AS51191 Core-Backbone GmbH 0.34ms from Amsterdam, NL
2a06:4b01:330b::1 AS51191 Core-Backbone GmbH 0.25ms from Amsterdam, NL
130.185.111.10 AS51191 Core-Backbone GmbH 2.91ms from Frankfurt am Main, DE
2a06:4b00:1000:100::3 AS51191 Core-Backbone GmbH 2.84ms from Frankfurt am Main, DE
2a06:4b01:350c::1 AS51191 Core-Backbone GmbH 0.82ms from London, GB
2a06:4b01:330a::1 AS51191 Core-Backbone GmbH 0.34ms 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
178.118.169.231 AS6848 Telenet BV 8.38ms from Brussels, BE
162.14.252.183 AS45090 Shenzhen Tencent Computer Systems Company Limited 0.16ms from Chongqing, CN
14.180.92.135 AS45899 VNPT Corp 4.19ms from Hanoi, VN
142.134.96.119 AS855 Bell Canada 16.79ms from Montreal, CA
68.205.178.55 AS33363 Charter Communications, Inc 7.91ms from Orlando, US
61.7.86.247 AS18150 NetComBB Co.,Ltd. 9.59ms from Osaka, JP
153.200.156.7 AS4713 NTT Communications Corporation 10.36ms from Osaka, JP
82.64.59.71 AS12322 Free SAS 1.96ms from Paris, FR
20.171.118.7 AS8075 Microsoft Corporation 0.19ms from Phoenix, US
42.238.80.71 AS4837 CHINA UNICOM China169 Backbone 4.62ms from Zhengzhou, CN
166.137.19.39 AS20057 AT&T Enterprises, LLC 1.22ms from Atlanta, US
18.116.113.199 AS16509 Amazon.com, Inc. 0.12ms from Columbus, US
200.165.95.231 AS7738 V tal 19.10ms from Fortaleza, BR
113.184.106.23 AS45899 VNPT Corp 5.11ms from Ho Chi Minh City, VN
111.39.94.247 AS9808 China Mobile Communications Group Co., Ltd. 10.07ms from Nanjing, CN
88.183.246.119 AS12322 Free SAS 7.63ms from Paris, FR
90.25.247.119 AS3215 Orange S.A. 3.18ms from Paris, FR
52.3.231.215 AS14618 Amazon.com, Inc. 0.23ms from Reston, US
179.179.189.199 AS18881 TELEFÔNICA BRASIL S.A 5.65ms from Sao Paulo, BR
183.117.245.231 AS4766 Korea Telecom 1.86ms from Seoul, KR
82.205.96.23 AS12975 PALTEL Autonomous System 5.58ms from Tel Aviv, IL
3.115.11.87 AS16509 Amazon.com, Inc. 1.08ms from Tokyo, JP
146.174.17.39 AS4181 TDS TELECOM 8.18ms from Los Angeles, US
15.156.36.119 AS16509 Amazon.com, Inc. 0.17ms from Montreal, CA
207.44.15.55 AS3737 PenTeleData Inc. 18.22ms from Morris Plains, US

Traceroute

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

$
traceroute -a -n -q1 -f5 195.138.246.1
traceroute to 195.138.246.1 (195.138.246.1): 64 hops max, 52 byte packets
5 [] 80.81.192.187 0.376 ms
Measurement taken from IPinfo ProbeNet in Frankfurt am Main, DE
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 AS51191 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