CF1757811701489-tsm20250912070358

NSLIST.NET - openn.cz

Search for IP or hostnames:

openn.cz checked at 2025-09-14T01:01:41.475Z 497ms 168/168/168 100% R:19

openn.cz

NSns2.gransy.com
A2001:19f0:6801:474:5400:1ff:fec5:8efb 🇫🇷 The Constant Company
A2001:19f0:7401:81e0:5400:1ff:fec5:8ef6 🇬🇧 The Constant Company
A95.179.192.121🇬🇧 The Constant Company
PTR95.179.192.121.vultrusercontent.com
A217.16.185.221🇨🇿 VSHosting s.r.o.
PTRns2.gransy.com
A217.69.4.49🇫🇷 The Constant Company
PTR217.69.4.49.vultrusercontent.com
NSns3.gransy.com
A2a02:750:7::2e7 🇸🇪 Portlane
PTR2a02-750-7--2e7-static.glesys.net
A2a02:750:8::32 🇳🇱 Portlane
PTR2a02-750-8--32-static.glesys.net
A46.21.100.103🇳🇱 Portlane
PTR46-21-100-103-static.glesys.net
A77.78.126.35🇨🇿 Casablanca INT a.s.
A109.74.7.71🇸🇪 Portlane
PTR109-74-7-71-static.glesys.net
NSns4.gransy.com
A2001:19f0:5401:69b:5400:1ff:fec5:8f3f 🇺🇸 The Constant Company
A2a00:1a28:2010:1::89 🇳🇴 Portlane
PTR2a00-1a28-2010-1--89-static.glesys.net
A66.42.94.136🇺🇸 The Constant Company
PTR66.42.94.136.vultrusercontent.com
A80.67.7.209🇳🇴 Portlane
PTR80-67-7-209-static.glesys.net
NSns5.gransy.com
A2a02:750:5::538 🇸🇪 Portlane
PTR2a02-750-5--538-static.glesys.net
A31.192.227.223🇸🇪 Portlane
PTR31-192-227-223-static.glesys.net
NSns.gransy.com
A2001:19f0:5001:1caf:5400:1ff:fec5:8d50 🇳🇱 The Constant Company
A45.76.90.43🇩🇪 The Constant Company
PTR45.76.90.43.vultrusercontent.com
A77.78.104.149🇨🇿 Casablanca INT a.s.
PTRns.gransy.com
A95.179.136.180🇳🇱 The Constant Company
PTR95.179.136.180.vultrusercontent.com
MXopenn-cz.mail.protection.outlook.com
A2a01:111:f403:ca04::e 🇮🇪 Microsoft
PTRmail-db8pr02cu00106.inbound.protection.outlook.com
A2a01:111:f403:ca04::f 🇮🇪 Microsoft
PTRmail-db7pr03cu00507.inbound.protection.outlook.com
A2a01:111:f403:ca09::a 🇳🇱 Microsoft
PTRmail-as8pr05cu00202.inbound.protection.outlook.com
A2a01:111:f403:ca09::c 🇳🇱 Microsoft
PTRmail-as8pr05cu00304.inbound.protection.outlook.com
A52.101.68.0🇮🇪 Microsoft
PTRmail-db3pr0202cu00100.inbound.protection.outlook.com
A52.101.68.3🇮🇪 Microsoft
PTRmail-db7pr03cu00403.inbound.protection.outlook.com
A52.101.68.32🇮🇪 Microsoft
PTRmail-db3pr0202cu00200.inbound.protection.outlook.com
A52.101.68.36🇮🇪 Microsoft
PTRmail-db5pr02cu00104.inbound.protection.outlook.com
A2a0d:5940:43:1:: 🇩🇪 Dataforest
A176.96.139.18🇩🇪 Dataforest
PTRmksrv2.krause.cz

cz

NSa.ns.nic.cz
NSb.ns.nic.cz
NSc.ns.nic.cz
NSd.ns.nic.cz

Starts with same word

Starts similarily

AI analysis

openn.cz points to two IP numbers: 2a0d:5940:43:1:: and 176.96.139.18.

IP numbers are shared by openn.cz with other host names like mksrv1.krause.cz, sportovni-pohary.cz, igormikulaphotography.com, igormikula.com, and x-pozice.cz.

Five name servers, ns2.gransy.com, ns3.gransy.com, ns4.gransy.com, ns5.gransy.com, and ns.gransy.com, are delegated to openn.cz.

The domain openn.cz shares its name servers at least partially with other domains such as smartdent.info, dddagmar.cz, lasernet.cz, krida.net, and koneprofilm.cz.

ns2.gransy.com is associated with the following five IP addresses: 2001:19f0:6801:474:5400:1ff:fec5:8efb, 2001:19f0:7401:81e0:5400:1ff:fec5:8ef6, 95.179.192.121, 217.16.185.221, and 217.69.4.49. ns3.gransy.com is linked to five IP addresses: 2a02:750:7::2e7, 2a02:750:8::32, 46.21.100.103, 77.78.126.35, and 109.74.7.71. ns4.gransy.com resolves to four IP addresses: 2001:19f0:5401:69b:5400:1ff:fec5:8f3f, 2a00:1a28:2010:1::89, 66.42.94.136, and 80.67.7.209. ns5.gransy.com corresponds to two IP addresses: 2a02:750:5::538 and 31.192.227.223. Finally, ns.gransy.com is connected to four IP addresses: 2001:19f0:5001:1caf:5400:1ff:fec5:8d50, 45.76.90.43, 77.78.104.149, and 95.179.136.180.

The mail server openn-cz.mail.protection.outlook.com is responsible for handling openn.cz.

The DNS record openn-cz.mail.protection.outlook.com resolves to the following eight IP addresses: 2a01:111:f403:ca04::e, 2a01:111:f403:ca04::f, 2a01:111:f403:ca09::a, 2a01:111:f403:ca09::c, 52.101.68.0, 52.101.68.3, 52.101.68.32, and 52.101.68.36.

Perform reverse DNS lookup as well as normal forward DNS. Check Autonomous System Numbers (ASNs) and BGP connections between Internet Service Providers.
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