CF1763797228566-tsm20251116095642

WWW.ROBTEX.COM - 21core.net

Search for IP or hostnames:

21core.net checked at 2025-11-22T07:40:28.377Z 2295ms 185/185/185 100% R:8 allDone:true timedOut:false

21core.net

NSns-298.awsdns-37.com
A2600:9000:5301:2a00::1🇺🇸 Amazon
PTRns-298.awsdns-37.com
A205.251.193.42🇺🇸 Amazon
PTRns-298.awsdns-37.com
NSns-969.awsdns-57.net
A2600:9000:5303:c900::1🇺🇸 Amazon
PTRns-969.awsdns-57.net
A205.251.195.201🇺🇸 Amazon
PTRns-969.awsdns-57.net
NSns-1256.awsdns-29.org
A2600:9000:5304:e800::1🇺🇸 Amazon
PTRns-1256.awsdns-29.org
A205.251.196.232🇺🇸 Amazon
PTRns-1256.awsdns-29.org
NSns-1645.awsdns-13.co.uk
A2600:9000:5306:6d00::1🇺🇸 Amazon
PTRns-1645.awsdns-13.co.uk
A205.251.198.109🇺🇸 Amazon
PTRns-1645.awsdns-13.co.uk
MX21core-net.mail.protection.outlook.com
A2a01:111:f403:ca04::🇮🇪 Microsoft
PTRmail-db3pr0202cu00100.inbound.protection.outlook.com
A2a01:111:f403:ca09::8🇳🇱 Microsoft
PTRmail-as2pr05cu00100.inbound.protection.outlook.com
A2a01:111:f403:ca09::c🇳🇱 Microsoft
PTRmail-as8pr05cu00304.inbound.protection.outlook.com
A2a01:111:f403:ca09::f🇳🇱 Microsoft
PTRmail-am7pr05cu00307.inbound.protection.outlook.com
A52.101.68.3🇮🇪 Microsoft
PTRmail-db7pr03cu00403.inbound.protection.outlook.com
A52.101.73.4🇳🇱 Microsoft
PTRmail-am0pr83cu00404.inbound.protection.outlook.com
A52.101.73.19🇳🇱 Microsoft
PTRmail-as8pr04cu00803.inbound.protection.outlook.com
A52.101.73.30🇳🇱 Microsoft
PTRmail-am7pr05cu00306.inbound.protection.outlook.com

net

NSa.gtld-servers.net
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net

Starts with same word

Starts similarily

AI analysis

21core.net is delegated to four name servers: ns-298.awsdns-37.com, ns-969.awsdns-57.net, ns-1256.awsdns-29.org and ns-1645.awsdns-13.co.uk.

21core.net at least partially shares name servers with other domains, for instance mecanicoautomotriz.org, d3ggkuzvpyi60c.cloudfront.net, grupoguararapes.com.br, eazegames.net and preprod.sales-marker.jp.

these name servers are commonly used with ns-460.awsdns-57.com, ns-1291.awsdns-33.org, ns-1625.awsdns-11.co.uk, ns-1606.awsdns-08.co.uk, ns-504.awsdns-63.com, ns-909.awsdns-49.net and ns-1.awsdns-00.com.

Host names with two IP numbers: ns-298.awsdns-37.com points to 2600:9000:5301:2a00::1 and 205.251.193.42; ns-969.awsdns-57.net points to 2600:9000:5303:c900::1 and 205.251.195.201; ns-1256.awsdns-29.org points to 2600:9000:5304:e800::1 and 205.251.196.232; ns-1645.awsdns-13.co.uk points to 2600:9000:5306:6d00::1 and 205.251.198.109.

21core.net is handled by a single mail server, 21core-net.mail.protection.outlook.com.

Host name 21core-net.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:ca04::, 2a01:111:f403:ca09::8, 2a01:111:f403:ca09::c, 2a01:111:f403:ca09::f, 52.101.68.3, 52.101.73.4, 52.101.73.19 and 52.101.73.30.

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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