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	147,479
IPv4 addresses	7,168
IPv6 addresses	634,119,069,088,281,054,895,600,000,000
ASN type	Hosting
Registry	ripe
Allocated	15 years ago on Feb 07, 2011
Updated	10 months ago on Jun 25, 2025

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	Shellrent S.r.l.	256
185.169.25.0/24	Shellrent S.r.l.	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
2a06:4b01:3309::/48	Core-Backbone GmbH
2a06:4b01:330a::/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
2a06:4b01:3310::/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
2a06:4b01:331d::/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
2a06:4b01:3326::/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
2a06:4b01:332d::/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
2a06:4b01:3331::/48	Core-Backbone GmbH
2a06:4b01:3332::/48	Core-Backbone GmbH
2a06:4b01:3333::/48	Core-Backbone GmbH
2a06:4b01:3335::/48	Core-Backbone GmbH
2a06:4b01:3336::/48	Core-Backbone GmbH
2a06:4b01:3337::/48	Core-Backbone GmbH
2a06:4b01:3338::/48	Core-Backbone GmbH
2a06:4b01:3339::/48	Core-Backbone GmbH
2a06:4b01:333a::/48	Core-Backbone GmbH
2a06:4b01:333b::/48	Core-Backbone GmbH
2a06:4b01:333c::/48	Core-Backbone GmbH
2a06:4b01:333d::/48	Core-Backbone GmbH
2a06:4b01:333e::/48	Core-Backbone GmbH
2a06:4b01:333f::/48	Core-Backbone GmbH
2a06:4b01:3340::/48	Core-Backbone GmbH
2a06:4b01:3341::/48	Core-Backbone GmbH
2a06:4b01:3342::/48	Core-Backbone GmbH
2a06:4b01:3344::/48	Core-Backbone GmbH
2a06:4b01:3345::/48	Core-Backbone GmbH
2a06:4b01:3346::/48	Core-Backbone GmbH
2a06:4b01:3347::/48	Core-Backbone GmbH
2a06:4b01:3349::/48	Core-Backbone GmbH
2a06:4b01:334a::/48	Core-Backbone GmbH
2a06:4b01:334b::/48	Core-Backbone GmbH
2a06:4b01:334c::/48	Core-Backbone GmbH
2a06:4b01:334d::/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
2a06:4b01:3356::/48	Core-Backbone GmbH
2a06:4b01:3358::/48	Core-Backbone GmbH
2a06:4b01:3359::/48	Core-Backbone GmbH
2a06:4b01:335a::/48	Core-Backbone GmbH
2a06:4b01:335b::/48	Core-Backbone GmbH
2a06:4b01:335c::/48	Core-Backbone GmbH
2a06:4b01:335d::/48	Core-Backbone GmbH
2a06:4b01:335e::/48	Core-Backbone GmbH
2a06:4b01:335f::/48	Core-Backbone GmbH
2a06:4b01:3360::/48	Core-Backbone GmbH
2a06:4b01:3361::/48	Core-Backbone GmbH
2a06:4b01:3362::/48	Core-Backbone GmbH
2a06:4b01:3363::/48	Core-Backbone GmbH
2a06:4b01:3364::/48	Core-Backbone GmbH
2a06:4b01:3365::/48	Core-Backbone GmbH
2a06:4b01:3366::/48	Core-Backbone GmbH
2a06:4b01:3367::/48	Core-Backbone GmbH
2a06:4b01:3368::/48	Core-Backbone GmbH
2a06:4b01:3369::/48	Core-Backbone GmbH
2a06:4b01:336a::/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
2a06:4b01:3370::/48	Core-Backbone GmbH
2a06:4b01:3371::/48	Core-Backbone GmbH
2a06:4b01:3372::/48	Core-Backbone GmbH
2a06:4b01:3373::/48	Core-Backbone GmbH
2a06:4b01:3374::/48	Core-Backbone GmbH
2a06:4b01:3375::/48	Core-Backbone GmbH
2a06:4b01:3376::/48	Core-Backbone GmbH
2a06:4b01:3377::/48	Core-Backbone GmbH
2a06:4b01:3378::/48	Core-Backbone GmbH
2a06:4b01:3379::/48	Core-Backbone GmbH
2a06:4b01:337a::/48	Core-Backbone GmbH
2a06:4b01:3380::/48	Core-Backbone GmbH
2a06:4b01:33c0::/48	Core-Backbone GmbH
2a06:4b01:33e0::/48	Core-Backbone GmbH
2a06:4b01:3400::/48	Core-Backbone GmbH
2a06:4b01:3404::/48	Core-Backbone GmbH
2a06:4b01:3405::/48	Core-Backbone GmbH
2a06:4b01:340c::/48	Core-Backbone GmbH
2a06:4b01:3418::/48	Core-Backbone GmbH
2a06:4b01:341a::/48	Core-Backbone GmbH
2a06:4b01:341b::/48	Core-Backbone GmbH
2a06:4b01:341d::/48	Core-Backbone GmbH
2a06:4b01:341e::/48	Core-Backbone GmbH
2a06:4b01:341f::/48	Core-Backbone GmbH
2a06:4b01:3420::/48	Core-Backbone GmbH
2a06:4b01:3421::/48	Core-Backbone GmbH
2a06:4b01:3422::/48	Core-Backbone GmbH
2a06:4b01:3423::/48	Core-Backbone GmbH
2a06:4b01:3426::/48	Core-Backbone GmbH
2a06:4b01:3427::/48	Core-Backbone GmbH
2a06:4b01:3428::/48	Core-Backbone GmbH
2a06:4b01:3429::/48	Core-Backbone GmbH
2a06:4b01:342a::/48	Core-Backbone GmbH
2a06:4b01:342b::/48	Core-Backbone GmbH
2a06:4b01:342c::/48	Core-Backbone GmbH
2a06:4b01:342d::/48	Core-Backbone GmbH
2a06:4b01:342e::/48	Core-Backbone GmbH
2a06:4b01:342f::/48	Core-Backbone GmbH
2a06:4b01:3430::/48	Core-Backbone GmbH
2a06:4b01:3431::/48	Core-Backbone GmbH
2a06:4b01:3432::/48	Core-Backbone GmbH
2a06:4b01:3433::/48	Core-Backbone GmbH
2a06:4b01:3435::/48	Core-Backbone GmbH
2a06:4b01:3436::/48	Core-Backbone GmbH
2a06:4b01:3437::/48	Core-Backbone GmbH
2a06:4b01:3438::/48	Core-Backbone GmbH
2a06:4b01:3439::/48	Core-Backbone GmbH
2a06:4b01:343a::/48	Core-Backbone GmbH
2a06:4b01:343b::/48	Core-Backbone GmbH
2a06:4b01:343c::/48	Core-Backbone GmbH
2a06:4b01:345a::/48	Core-Backbone GmbH
2a06:4b01:345b::/48	Core-Backbone GmbH
2a06:4b01:3478::/48	Core-Backbone GmbH
2a06:4b01:3480::/48	Core-Backbone GmbH
2a06:4b01:34c0::/48	Core-Backbone GmbH
2a06:4b01:34ec::/48	Core-Backbone GmbH
2a06:4b01:34f0::/48	Core-Backbone GmbH
2a06:4b01:350c::/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
2a06:4b01:3526::/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
2a06:4b01:3531::/48	Core-Backbone GmbH
2a06:4b01:3532::/48	Core-Backbone GmbH
2a06:4b01:3533::/48	Core-Backbone GmbH
2a06:4b01:3535::/48	Core-Backbone GmbH
2a06:4b01:3536::/48	Core-Backbone GmbH
2a06:4b01:3537::/48	Core-Backbone GmbH
2a06:4b01:3538::/48	Core-Backbone GmbH
2a06:4b01:3539::/48	Core-Backbone GmbH
2a06:4b01:353a::/48	Core-Backbone GmbH
2a06:4b01:353b::/48	Core-Backbone GmbH
2a06:4b01:353c::/48	Core-Backbone GmbH
2a06:4b01:353d::/48	Core-Backbone GmbH
2a06:4b01:353e::/48	Core-Backbone GmbH
2a06:4b01:353f::/48	Core-Backbone GmbH
2a06:4b01:3540::/48	Core-Backbone GmbH
2a06:4b01:3541::/48	Core-Backbone GmbH
2a06:4b01:3542::/48	Core-Backbone GmbH
2a06:4b01:3544::/48	Core-Backbone GmbH
2a06:4b01:3545::/48	Core-Backbone GmbH
2a06:4b01:3546::/48	Core-Backbone GmbH
2a06:4b01:3547::/48	Core-Backbone GmbH
2a06:4b01:3549::/48	Core-Backbone GmbH
2a06:4b01:354a::/48	Core-Backbone GmbH
2a06:4b01:354b::/48	Core-Backbone GmbH
2a06:4b01:354c::/48	Core-Backbone GmbH
2a06:4b01:354d::/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
2a06:4b01:3556::/48	Core-Backbone GmbH
2a06:4b01:3558::/48	Core-Backbone GmbH
2a06:4b01:3559::/48	Core-Backbone GmbH
2a06:4b01:355c::/48	Core-Backbone GmbH
2a06:4b01:355d::/48	Core-Backbone GmbH
2a06:4b01:355e::/48	Core-Backbone GmbH
2a06:4b01:355f::/48	Core-Backbone GmbH
2a06:4b01:3560::/48	Core-Backbone GmbH
2a06:4b01:3561::/48	Core-Backbone GmbH
2a06:4b01:3562::/48	Core-Backbone GmbH
2a06:4b01:3563::/48	Core-Backbone GmbH
2a06:4b01:3564::/48	Core-Backbone GmbH
2a06:4b01:3565::/48	Core-Backbone GmbH
2a06:4b01:3566::/48	Core-Backbone GmbH
2a06:4b01:3567::/48	Core-Backbone GmbH
2a06:4b01:3568::/48	Core-Backbone GmbH
2a06:4b01:3569::/48	Core-Backbone GmbH
2a06:4b01:356a::/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
2a06:4b01:3570::/48	Core-Backbone GmbH
2a06:4b01:3571::/48	Core-Backbone GmbH
2a06:4b01:3572::/48	Core-Backbone GmbH
2a06:4b01:3573::/48	Core-Backbone GmbH
2a06:4b01:3574::/48	Core-Backbone GmbH
2a06:4b01:3575::/48	Core-Backbone GmbH
2a06:4b01:3576::/48	Core-Backbone GmbH
2a06:4b01:3577::/48	Core-Backbone GmbH
2a06:4b01:3578::/48	Core-Backbone GmbH
2a06:4b01:3579::/48	Core-Backbone GmbH
2a06:4b01:357a::/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 147,479 domain names hosted across 249 IP addresses on this ASN.

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IP Address	Domain	Domains on this IP
130.185.109.77	██████████	93,959
185.24.68.9	██████████	4,305
130.185.109.78	██████████	2,668
130.185.109.2	██████████	86
195.138.245.250	██████████	66
185.24.68.234	██████████	47
130.185.109.43	██████████	46
130.185.108.81	██████████	23
185.169.25.22	██████████	22
130.185.104.82	██████████	15

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Hosted Domains API & Database

Peers

There are 4 peers for this ASN.

Peers	Name
AS199524	G-Core Labs S.A.
AS20473	The Constant Company, LLC
AS33891	Core-Backbone GmbH
AS60068	Datacamp Limited

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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

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ASN API & Database

Downstreams

There are no downstreams for this ASN.

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ASN API & Database

Pingable IPs

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

IP Address	ASN	Details
2a06:4b01:3329::1	AS51191 Core-Backbone GmbH	`0.35ms` from Amsterdam, NL
2a06:4b01:333d::1	AS51191 Core-Backbone GmbH	`0.33ms` from Amsterdam, NL
2a06:4b01:3358::1	AS51191 Core-Backbone GmbH	`0.35ms` from Amsterdam, NL
2a06:4b01:3374::1	AS51191 Core-Backbone GmbH	`0.35ms` from Amsterdam, NL
2a06:4b01:352a::1	AS51191 Core-Backbone GmbH	`0.33ms` from London, GB
2a01:4a0:2001:2735::1	AS51191 Core-Backbone GmbH	`1.28ms` from Nuernberg, DE
130.185.109.130	AS51191 Core-Backbone GmbH	`0.42ms` from Nuernberg, DE
2a06:4b01:3367::1	AS51191 Core-Backbone GmbH	`0.30ms` from Amsterdam, NL
2a06:4b01:3515::1	AS51191 Core-Backbone GmbH	`7.83ms` from Amsterdam, NL
2a06:4b01:3319::1	AS51191 Core-Backbone GmbH	`0.34ms` from Amsterdam, NL
2a06:4b01:3363::1	AS51191 Core-Backbone GmbH	`0.34ms` from Amsterdam, NL
2a06:4b01:34ec::1	AS51191 Core-Backbone GmbH	`0.30ms` from Sydney, AU
2a06:4b01:3359::1	AS51191 Core-Backbone GmbH	`0.32ms` from Amsterdam, NL
2a06:4b01:340c::1	AS51191 Core-Backbone GmbH	`0.39ms` from Frankfurt am Main, DE
2a06:4b01:353d::1	AS51191 Core-Backbone GmbH	`1.18ms` from London, GB
2a06:4b01:3568::1	AS51191 Core-Backbone GmbH	`1.17ms` from London, GB
2a06:4b01:333b::1	AS51191 Core-Backbone GmbH	`0.33ms` from Amsterdam, NL
2a06:4b01:3354::1	AS51191 Core-Backbone GmbH	`0.35ms` from Amsterdam, NL
2a06:4b01:3546::1	AS51191 Core-Backbone GmbH	`1.06ms` from London, GB
2a06:4b01:356b::1	AS51191 Core-Backbone GmbH	`0.98ms` from London, GB
2a06:4b01:356e::1	AS51191 Core-Backbone GmbH	`1.13ms` from London, GB
2a06:4b01:3553::1	AS51191 Core-Backbone GmbH	`1.07ms` from London, GB
2a06:4b01:354f::1	AS51191 Core-Backbone GmbH	`1.08ms` from London, GB
2a01:4a0:2000::12	AS51191 Core-Backbone GmbH	`0.55ms` from Nuernberg, DE
2a06:4b01:332d::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
43.196.22.215	AS55960 Beijing Guanghuan Xinwang Digital	`3.88ms` from Beijing, CN
3.131.134.23	AS16509 Amazon.com, Inc.	`0.17ms` from Columbus, US
121.43.39.23	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`4.61ms` from Hangzhou, CN
95.69.92.135	AS42863 MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A.	`17.08ms` from Lisbon, PT
184.94.90.23	AS7385 Allstream Business US, LLC	`12.05ms` from Toronto, CA
75.245.248.183	AS6167 Verizon Business	`18.68ms` from Dallas, US
4.209.216.7	AS8075 Microsoft Corporation	`0.15ms` from Dublin, IE
79.149.63.135	AS3352 TELEFONICA DE ESPANA S.A.U.	`17.74ms` from Madrid, ES
13.234.7.167	AS16509 Amazon.com, Inc.	`0.28ms` from Mumbai, IN
60.142.242.167	AS17676 SoftBank Corp.	`3.65ms` from Osaka, JP
114.187.130.55	AS4713 NTT DOCOMO BUSINESS,Inc.	`5.71ms` from Osaka, JP
45.22.96.103	AS7018 AT&T Enterprises, LLC	`5.35ms` from San Antonio, US
177.229.180.135	AS13999 Mega Cable, S.A. de C.V.	`16.74ms` from Santiago de Querétaro, MX
24.17.132.103	AS7922 Comcast Cable Communications, LLC	`4.02ms` from Seattle, US
90.149.105.7	AS2527 Sony Network Communications Inc.	`1.82ms` from Tokyo, JP
210.188.254.39	AS9370 SAKURA Internet Inc.	`0.82ms` from Tokyo, JP
81.205.7.23	AS1136 KPN B.V.	`1.32ms` from Amsterdam, NL
82.173.124.7	AS13127 Odido Netherlands B.V.	`17.71ms` from Amsterdam, NL
203.156.127.215	AS55423 JasTel Network	`0.46ms` from Bangkok, TH
68.147.26.55	AS6327 Shaw Communications	`4.80ms` from Calgary, CA
97.242.240.87	AS6167 Verizon Business	`12.23ms` from Chicago, US
18.157.203.183	AS16509 Amazon.com, Inc.	`0.23ms` from Frankfurt am Main, DE
81.235.61.119	AS3301 Telia Company AB	`0.74ms` from Goeteborg, SE
175.245.164.87	AS4766 Korea Telecom	`4.30ms` from Incheon, KR
1.245.147.23	AS9318 SK Broadband Co Ltd	`4.39ms` from Incheon, KR

Traceroute

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

traceroute -a -n -q1 185.169.24.71

traceroute to 185.169.24.71 (185.169.24.71): 64 hops max, 52 byte packets

1 [AS15169] 74.125.253.7 242.918 ms

2 *

3 [AS201011] 81.95.15.161 243.912 ms

4 *

5 *

6 *

7 [AS51191] 185.169.24.71 241.478 ms

Measurement taken from

IPinfo ProbeNet in Seoul, KR

On April 24th 2026

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AS212858

Andreas Walther

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AS215185

Entropia e.V.

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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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