WWW.RTSAK.COM - cs21nextnet.cz

Search for IP or hostnames:

cs21nextnet.cz checked at 2025-09-28T07:31:36.597Z 267ms 106/106/106 100% R:15

`cs21nextnet.cz`

NS	`alfa.ns.active24.cz`
		A	2a02:4a8:ac24:100::96:2 ^{🇨🇿 ACTIVE 24}
			PTR	`alfa.ns.active24.cz`
		A	81.95.96.2^{🇨🇿 ACTIVE 24}
			PTR	`alfa.ns.active24.cz`
NS	`beta.ns.active24.cz`
		A	2a00:4b40:1000:590:185:111:90:94 ^{🇸🇰 Websupport}
			PTR	`beta.ns.active24.cz`
		A	185.111.90.94^{🇭🇺 Websupport}
			PTR	`beta.ns.active24.cz`
NS	`gama.ns.active24.sk`
		A	2a00:1968:0:1002:185:71:158:30 ^{🇸🇪 LOOPIA3}
			PTR	`gama.ns.active24.sk`
		A	185.71.158.30^{🇸🇪 LOOPIA3}
			PTR	`gama.ns.active24.sk`
MX	`cs21nextnet-cz.mail.protection.outlook.com`
		A	2a01:111:f403:ca04::8 ^{🇮🇪 Microsoft}
			PTR	`mail-db5pr02cu00100.inbound.protection.outlook.com`
		A	2a01:111:f403:ca04::f ^{🇮🇪 Microsoft}
			PTR	`mail-db7pr03cu00507.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::5 ^{🇳🇱 Microsoft}
			PTR	`mail-am1pr04cu00105.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::7 ^{🇳🇱 Microsoft}
			PTR	`mail-am9pr04cu00107.inbound.protection.outlook.com`
		A	52.101.68.8^{🇮🇪 Microsoft}
			PTR	`mail-du0pr03cu00100.inbound.protection.outlook.com`
		A	52.101.68.36^{🇮🇪 Microsoft}
			PTR	`mail-db5pr02cu00104.inbound.protection.outlook.com`
		A	52.101.73.16^{🇳🇱 Microsoft}
			PTR	`mail-as2pr05cu00100.inbound.protection.outlook.com`
		A	52.101.73.26^{🇳🇱 Microsoft}
			PTR	`mail-as9pr05cu01302.inbound.protection.outlook.com`
A	31.15.10.199^{🇨🇿 ACTIVE 24}
		PTR	`uvirt140.active24.cz`

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cs21nextnet.cz is the parent of hosting.cs21nextnet.cz, intranet.cs21nextnet.cz, autodiscover.cs21nextnet.cz, cshelpdesk.cs21nextnet.cz, filter.cs21nextnet.cz and several other host names.

cs21nextnet.cz points to a single IP: 31.15.10.199.

Other host names, for instance filipmartin.cz, uvirt140.active24.cz, stransky.it, plusx.cz and mail.m3000.cz share IP numbers with cs21nextnet.cz.

cs21nextnet.cz is delegated to three name servers: alfa.ns.active24.cz, beta.ns.active24.cz and gama.ns.active24.sk.

cs21nextnet.cz at least partially shares its name servers with other domains, for instance urazovka.cz, fvb.cz, radiozlin.cz, odpiky.cz and dcservis.cz.

Host names with two IP numbers:

alfa.ns.active24.cz points to: 2a02:4a8:ac24:100::96:2 and 81.95.96.2.

beta.ns.active24.cz points to: 2a00:4b40:1000:590:185:111:90:94 and 185.111.90.94.

gama.ns.active24.sk points to: 2a00:1968:0:1002:185:71:158:30 and 185.71.158.30.

cs21nextnet.cz is served by a single mail server, cs21nextnet-cz.mail.protection.outlook.com.

The host name cs21nextnet-cz.mail.protection.outlook.com resolves to eight IP numbers: 2a01:111:f403:ca04::8, 2a01:111:f403:ca04::f, 2a01:111:f403:ca09::5, 2a01:111:f403:ca09::7, 52.101.68.8, 52.101.68.36, 52.101.73.16 and 52.101.73.26.

dbq