CF1763462819895-tsm20251116095642

MXLIST.NET - i-system.cz

Search for IP or hostnames:

i-system.cz checked at 2025-11-18T10:46:59.694Z 2555ms 103/103/103 100% R:13 allDone:true timedOut:false

i-system.cz

NSns1.websupport.cz
A2a10:bbc0::11 🇨🇿 ACTIVE24-AS
PTRns1.websupport.eu
A45.10.97.11🇨🇿 ACTIVE24-AS
PTRns1.websupport.eu
NSns2.websupport.cz
A2a02:250:3::12 🇸🇪 ACTIVE24-AS
PTRns2.websupport.eu
A185.71.159.12🇸🇪 ACTIVE24-AS
PTRns2.websupport.eu
NSns3.websupport.eu
A2a10:bbc0::13 🇨🇿 ACTIVE24-AS
PTRns3.websupport.eu
A45.10.97.13🇨🇿 ACTIVE24-AS
PTRns3.websupport.eu
MXisystem-cz0c.mail.protection.outlook.com
A2a01:111:f403:ca04::a 🇮🇪 Microsoft
PTRmail-du0pr03cu00102.inbound.protection.outlook.com
A2a01:111:f403:ca09:: 🇳🇱 Microsoft
PTRmail-am3pr04cu00500.inbound.protection.outlook.com
A2a01:111:f403:ca09::3 🇳🇱 Microsoft
PTRmail-am6pr04cu00303.inbound.protection.outlook.com
A2a01:111:f403:ca09::8 🇳🇱 Microsoft
PTRmail-as2pr05cu00100.inbound.protection.outlook.com
A52.101.73.4🇳🇱 Microsoft
PTRmail-am0pr83cu00404.inbound.protection.outlook.com
A52.101.73.6🇳🇱 Microsoft
PTRmail-am6pr04cu00306.inbound.protection.outlook.com
A52.101.73.8🇳🇱 Microsoft
PTRmail-am0pr04cu00500.inbound.protection.outlook.com
A52.101.73.11🇳🇱 Microsoft
PTRmail-am1pr04cu00103.inbound.protection.outlook.com
A37.205.9.54🇨🇿 MASTER-AS
PTRmail.bohyn.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

i-system.cz resolves to one IP number: 37.205.9.54.

Other host names such as bohyn.cz and vps.bohyn.cz share IP numbers with i-system.cz.

i-system.cz is delegated to three name servers ns1.websupport.cz, ns2.websupport.cz and ns3.websupport.eu.

i-system.cz at least partially shares name servers with other domains, for instance autopark.sk, apple-help.cz, fiaweb.nl, mergorinmosam.nl and hologic.sk.

Host names with two IP numbers:

ns1.websupport.cz points to: 2a10:bbc0::11 and 45.10.97.11.

ns2.websupport.cz points to: 2a02:250:3::12 and 185.71.159.12.

ns3.websupport.eu points to: 2a10:bbc0::13 and 45.10.97.13.

i-system.cz is handled by a single mail server, isystem-cz0c.mail.protection.outlook.com.

Host isystem-cz0c.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:ca04::a, 2a01:111:f403:ca09::, 2a01:111:f403:ca09::3, 2a01:111:f403:ca09::8, 52.101.73.4, 52.101.73.6, 52.101.73.8 and 52.101.73.11.

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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