Autonomous System details

AS51191

Core-Backbone GmbH  ·  core-backbone.com

Germany

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AS51191 – Core-Backbone GmbH

Field Value
Country Germany
Website core-backbone.com
Hosted domains 145,783
IPv4 addresses 7,168
IPv6 addresses 633,972,789,064,107,685,507,665,756,160
ASN type Hosting
Registry ripe
Allocated 15 years ago on Feb 07, 2011
Updated 7 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
185.24.68.0/22 Core-Backbone GmbH 1,024
185.108.216.0/22 Core-Backbone GmbH 1,024
91.232.96.0/23 Core-Backbone GmbH 512
185.169.24.0/24 Sh S.p.a. 256
185.169.25.0/24 Sh 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
2a06:4b01:3322::/48 Core-Backbone GmbH
2a06:4b01:3323::/48 Core-Backbone GmbH
2a06:4b01:3324::/48 Core-Backbone GmbH
2a06:4b01:3325::/48 Core-Backbone GmbH
2a06:4b01:3326::/48 Core-Backbone GmbH
2a06:4b01:3327::/48 Core-Backbone GmbH
2a06:4b01:3328::/48 Core-Backbone GmbH
2a06:4b01:3329::/48 Core-Backbone GmbH
2a06:4b01:332a::/48 Core-Backbone GmbH
2a06:4b01:332b::/48 Core-Backbone GmbH
2a06:4b01:332c::/48 Core-Backbone GmbH
2a06:4b01:332e::/48 Core-Backbone GmbH
2a06:4b01:332f::/48 Core-Backbone GmbH
2a06:4b01:3330::/48 Core-Backbone GmbH
2a06:4b01:334e::/48 Core-Backbone GmbH
2a06:4b01:334f::/48 Core-Backbone GmbH
2a06:4b01:3351::/48 Core-Backbone GmbH
2a06:4b01:3352::/48 Core-Backbone GmbH
2a06:4b01:3353::/48 Core-Backbone GmbH
2a06:4b01:3354::/48 Core-Backbone GmbH
2a06:4b01:3355::/48 Core-Backbone GmbH
2a06:4b01:336b::/48 Core-Backbone GmbH
2a06:4b01:336c::/48 Core-Backbone GmbH
2a06:4b01:336d::/48 Core-Backbone GmbH
2a06:4b01:336e::/48 Core-Backbone GmbH
2a06:4b01:336f::/48 Core-Backbone GmbH
2a06:4b01:3377::/48 Core-Backbone GmbH
2a06:4b01:3400::/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
2a06:4b01:350b::/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
2a06:4b01:351d::/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
2a06:4b01:3522::/48 Core-Backbone GmbH
2a06:4b01:3523::/48 Core-Backbone GmbH
2a06:4b01:3524::/48 Core-Backbone GmbH
2a06:4b01:3525::/48 Core-Backbone GmbH
2a06:4b01:3526::/48 Core-Backbone GmbH
2a06:4b01:3527::/48 Core-Backbone GmbH
2a06:4b01:3528::/48 Core-Backbone GmbH
2a06:4b01:3529::/48 Core-Backbone GmbH
2a06:4b01:352a::/48 Core-Backbone GmbH
2a06:4b01:352b::/48 Core-Backbone GmbH
2a06:4b01:352c::/48 Core-Backbone GmbH
2a06:4b01:352d::/48 Core-Backbone GmbH
2a06:4b01:352e::/48 Core-Backbone GmbH
2a06:4b01:352f::/48 Core-Backbone GmbH
2a06:4b01:3530::/48 Core-Backbone GmbH
2a06:4b01:354e::/48 Core-Backbone GmbH
2a06:4b01:354f::/48 Core-Backbone GmbH
2a06:4b01:3551::/48 Core-Backbone GmbH
2a06:4b01:3552::/48 Core-Backbone GmbH
2a06:4b01:3553::/48 Core-Backbone GmbH
2a06:4b01:3554::/48 Core-Backbone GmbH
2a06:4b01:3555::/48 Core-Backbone GmbH
2a06:4b01:356b::/48 Core-Backbone GmbH
2a06:4b01:356c::/48 Core-Backbone GmbH
2a06:4b01:356d::/48 Core-Backbone GmbH
2a06:4b01:356e::/48 Core-Backbone GmbH
2a06:4b01:356f::/48 Core-Backbone GmbH
2a06:4b01:3577::/48 Core-Backbone GmbH

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WHOIS Details

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                                                ASHandle:       AS51191
                                                OrgID:          AS51191
                                                ASName:         AS51191
                                                ASNumber:       AS51191
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA
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IP WHOIS API & Database

Hosted Domains

There are 145,783 domain names hosted across 252 IP addresses on this ASN.

Join for free to explore hosted domains ›
IP Address Domain Domains on this IP
130.185.109.77 ██████████ 131,009
130.185.109.78 ██████████ 9,620
185.24.68.9 ██████████ 4,336
130.185.109.2 ██████████ 103
195.138.245.250 ██████████ 84
185.24.68.234 ██████████ 53
130.185.109.43 ██████████ 50
130.185.104.82 ██████████ 36
130.185.108.81 ██████████ 24
185.169.25.22 ██████████ 23

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Hosted Domains API & Database

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 & Database

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 & 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

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

IP Address ASN Details
2a06:4b01:3305::1 AS51191 Core-Backbone GmbH 0.36ms from Amsterdam, NL
2a06:4b01:352c::1 AS51191 Core-Backbone GmbH 0.18ms from London, GB
2a06:4b01:3502::1 AS51191 Core-Backbone GmbH 0.28ms from London, GB
2a06:4b01:3522::1 AS51191 Core-Backbone GmbH 0.17ms from London, GB
195.138.242.3 AS51191 Core-Backbone GmbH 0.55ms from Nuernberg, DE
2a06:4b01:330d::1 AS51191 Core-Backbone GmbH 0.31ms from Amsterdam, NL
2a06:4b01:3300::1 AS51191 Core-Backbone GmbH 0.33ms from Amsterdam, NL
2a06:4b01:350d::1 AS51191 Core-Backbone GmbH 1.11ms from London, GB
2a06:4b01:3303::1 AS51191 Core-Backbone GmbH 0.29ms from Amsterdam, NL
2a06:4b01:3400::1 AS51191 Core-Backbone GmbH 0.24ms from Frankfurt am Main, DE
2a06:4b01:3525::1 AS51191 Core-Backbone GmbH 0.22ms from London, GB
130.185.109.130 AS51191 Core-Backbone GmbH 0.47ms from Nuernberg, DE
2a06:4b01:3326::1 AS51191 Core-Backbone GmbH 0.31ms from Amsterdam, NL
2a06:4b01:3307::1 AS51191 Core-Backbone GmbH 0.35ms from Amsterdam, NL
2a06:4b01:352b::1 AS51191 Core-Backbone GmbH 0.19ms from London, GB
2a06:4b01:350e::1 AS51191 Core-Backbone GmbH 0.27ms from London, GB
130.185.111.5 AS51191 Core-Backbone GmbH 0.85ms from Nuernberg, DE
2a06:4b01:330f::1 AS51191 Core-Backbone GmbH 0.33ms from Amsterdam, NL
2a06:4b01:350b::1 AS51191 Core-Backbone GmbH 0.92ms from London, GB
2a06:4b01:3507::1 AS51191 Core-Backbone GmbH 0.89ms from London, GB
2a06:4b01:3530::1 AS51191 Core-Backbone GmbH 0.20ms from London, GB
2a06:4b01:3519::1 AS51191 Core-Backbone GmbH 0.77ms from London, GB
2a06:4b01:351d::1 AS51191 Core-Backbone GmbH 0.64ms from London, GB
2a06:4b01:351f::1 AS51191 Core-Backbone GmbH 0.83ms from London, GB
130.185.108.70 AS51191 Core-Backbone GmbH 0.45ms from Nuernberg, 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
162.242.205.7 AS27357 Rackspace Hosting 0.36ms from Ashburn, US
73.126.26.231 AS7922 Comcast Cable Communications, LLC 7.64ms from Boston, US
163.192.125.71 AS31898 Oracle Corporation 0.36ms from Chicago, US
88.70.111.247 AS3209 Vodafone GmbH 5.92ms from Duesseldorf, DE
34.129.6.167 AS396982 Google LLC 0.10ms from Melbourne, AU
24.206.68.183 AS55256 Netskope Inc 0.47ms from Miami, US
139.103.70.39 AS611 NB-PEI Educational Computer Network 15.63ms from Montreal, CA
98.193.138.247 AS7922 Comcast Cable Communications, LLC 8.90ms from Murfreesboro, US
37.192.239.103 AS31200 Novotelecom Ltd 1.28ms from Novosibirsk, RU
164.90.76.71 AS10122 NETSTAR (SG) PTE. LTD. 0.55ms from Singapore, SG
103.248.97.183 AS7545 TPG Telecom Limited 4.69ms from Sydney, AU
133.98.113.7 AS2907 Research Organization of Information and Systems, National Institute of Informatics 13.04ms from Tokyo, JP
24.85.29.23 AS6327 Shaw Communications 7.66ms from Vancouver, CA
172.178.96.55 AS8075 Microsoft Corporation 0.88ms from Ashburn, US
202.139.211.39 AS135566 National Telecom Public Company Limited 0.31ms from Bangkok, TH
75.65.117.199 AS7922 Comcast Cable Communications, LLC 17.62ms from Dallas, US
222.254.246.119 AS45899 VNPT Corp 5.93ms from Ho Chi Minh City, VN
93.39.211.183 AS12874 Fastweb SpA 0.91ms from Milan, IT
67.70.39.215 AS577 Bell Canada 7.42ms from Montreal, CA
157.245.124.215 AS14061 DigitalOcean, LLC 0.28ms from New York City, US
13.51.175.247 AS16509 Amazon.com, Inc. 1.10ms from Stockholm, SE
210.188.254.39 AS9370 SAKURA Internet Inc. 0.91ms from Tokyo, JP
20.172.135.119 AS8075 Microsoft Corporation 0.38ms from Ashburn, US
213.198.226.199 AS8771 YUnet International d.o.o. 5.11ms from Belgrade, RS
35.158.132.151 AS16509 Amazon.com, Inc. 0.38ms from Frankfurt am Main, DE

Traceroute

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

$
traceroute -a -n -q1 -f3 91.232.96.1
traceroute to 91.232.96.1 (91.232.96.1): 64 hops max, 52 byte packets
4 [] 37.49.237.55 9.97 ms
5 [AS201011] 81.95.15.161 15.236 ms
6 [AS51191] 91.232.96.1 15.313 ms
Measurement taken from IPinfo ProbeNet in Lille, FR
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.

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