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	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
2a06:4b01:3309::/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

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

IP Address	ASN	Details
2a06:4b01:332d::1	AS51191 Core-Backbone GmbH	`0.27ms` from Amsterdam, NL
2a06:4b01:356a::1	AS51191 Core-Backbone GmbH	`1.11ms` from London, GB
2a06:4b01:356c::1	AS51191 Core-Backbone GmbH	`1.18ms` from London, GB
2a06:4b01:3569::1	AS51191 Core-Backbone GmbH	`1.12ms` from London, GB
185.169.25.234	AS51191 Core-Backbone GmbH	`0.40ms` from Nuernberg, DE
195.138.240.59	AS51191 Core-Backbone GmbH	`0.41ms` from Nuernberg, DE
195.138.247.20	AS51191 Core-Backbone GmbH	`0.48ms` from Nuernberg, DE
2a06:4b01:332b::1	AS51191 Core-Backbone GmbH	`0.35ms` from Amsterdam, NL
2a06:4b01:3339::1	AS51191 Core-Backbone GmbH	`0.34ms` from Amsterdam, NL
2a06:4b01:3361::1	AS51191 Core-Backbone GmbH	`0.36ms` from Amsterdam, NL
2a06:4b01:3330::1	AS51191 Core-Backbone GmbH	`0.30ms` from Amsterdam, NL
2a06:4b01:330a::1	AS51191 Core-Backbone GmbH	`0.34ms` from Amsterdam, NL
2a06:4b01:3332::1	AS51191 Core-Backbone GmbH	`0.34ms` from Amsterdam, NL
2a06:4b01:3351::1	AS51191 Core-Backbone GmbH	`0.33ms` from Amsterdam, NL
2a06:4b01:3329::1	AS51191 Core-Backbone GmbH	`0.37ms` from Amsterdam, NL
2a06:4b01:3577::1	AS51191 Core-Backbone GmbH	`1.17ms` from London, GB
2a06:4b01:3556::1	AS51191 Core-Backbone GmbH	`1.03ms` from London, GB
2a06:4b01:3541::1	AS51191 Core-Backbone GmbH	`1.17ms` from London, GB
2a06:4b01:3316::1	AS51191 Core-Backbone GmbH	`0.27ms` from Amsterdam, NL
2a06:4b01:351a::1	AS51191 Core-Backbone GmbH	`0.86ms` from London, GB
2a06:4b01:354c::1	AS51191 Core-Backbone GmbH	`1.17ms` from London, GB
2a06:4b01:353a::1	AS51191 Core-Backbone GmbH	`0.33ms` from London, GB
2a06:4b01:3547::1	AS51191 Core-Backbone GmbH	`1.03ms` from London, GB
2a06:4b01:3532::1	AS51191 Core-Backbone GmbH	`0.29ms` from London, GB
2a06:4b01:352b::1	AS51191 Core-Backbone GmbH	`0.25ms` from London, GB

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
111.198.55.7	AS4808 China Unicom Beijing Province Network	`3.87ms` from Beijing, CN
181.2.132.231	AS7303 Telecom Argentina S.A.	`1.48ms` from Buenos Aires, AR
41.37.1.247	AS8452 TE-AS	`11.64ms` from Cairo, EG
102.40.170.199	AS8452 TE-AS	`3.59ms` from Cairo, EG
208.122.19.7	AS398991 X99	`0.14ms` from Chicago, US
162.226.43.55	AS7018 AT&T Enterprises, LLC	`6.25ms` from Chicago, US
20.216.4.71	AS8075 Microsoft Corporation	`0.39ms` from Dubai, AE
143.42.26.135	AS63949 Akamai Connected Cloud	`0.14ms` from Frankfurt am Main, DE
39.124.208.55	AS9318 SK Broadband Co Ltd	`6.99ms` from Incheon, KR
86.158.140.87	AS2856 British Telecommunications PLC	`2.33ms` from London, GB
124.83.66.23	AS9299 Philippine Long Distance Telephone Company	`12.04ms` from Manila, PH
128.28.88.7	AS2514 NTT PC Communications, Inc.	`2.42ms` from Osaka, JP
4.155.250.247	AS8075 Microsoft Corporation	`0.40ms` from Quincy, US
73.231.139.23	AS7922 Comcast Cable Communications, LLC	`2.00ms` from San Jose, US
15.135.60.231	AS16509 Amazon.com, Inc.	`0.21ms` from Sydney, AU
197.159.193.7	AS37381 Afrique Technologies & Services (VipNet)	`1.78ms` from Abidjan, CI
181.122.194.39	AS23201 Telecel S.A.	`8.32ms` from Asuncion, PY
213.198.226.199	AS8771 YUnet International d.o.o.	`5.02ms` from Belgrade, RS
20.22.97.247	AS8075 Microsoft Corporation	`0.29ms` from Boydton, US
14.97.12.103	AS45820 Tata Teleservices ISP AS	`3.61ms` from Hyderabad, IN
185.255.174.7	AS44319 Sef Bilisim Hizmetleri A.S.	`0.39ms` from Istanbul, TR
98.244.207.247	AS7922 Comcast Cable Communications, LLC	`9.25ms` from Miami, US
23.63.220.135	AS55836 Reliance Jio Infocomm Limited	`0.53ms` from Mumbai, IN
93.195.158.135	AS3320 Deutsche Telekom AG	`5.82ms` from Munich, DE
20.169.83.39	AS8075 Microsoft Corporation	`0.20ms` from Phoenix, US

Traceroute

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

traceroute -a -n -q1 -f2 -m6 195.138.246.253

traceroute to 195.138.246.253 (195.138.246.253): 6 hops max, 52 byte packets

2 [] 193.239.119.245 0.466 ms

3 [AS201011] 81.95.15.161 8.26 ms

4 *

5 *

6 *

Measurement taken from

IPinfo ProbeNet in Amsterdam, NL

On April 13th 2026

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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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