CF1762799782693-tsm20251109205412

WWW.RTSAK.COM - 21stcenturysoftware.com

Search for IP or hostnames:

21stcenturysoftware.com checked at 2025-11-10T18:36:22.684Z 224ms 97/97/97 100% R:14 allDone:true timedOut:false

21stcenturysoftware.com

NSns-233.awsdns-29.com
A2600:9000:5300:e900::1 🇺🇸 Amazon
PTRns-233.awsdns-29.com
A205.251.192.233🇺🇸 Amazon
PTRns-233.awsdns-29.com
NSns-545.awsdns-04.net
A2600:9000:5302:2100::1 🇺🇸 Amazon
PTRns-545.awsdns-04.net
A205.251.194.33🇺🇸 Amazon
PTRns-545.awsdns-04.net
NSns-1302.awsdns-34.org
A2600:9000:5305:1600::1 🇺🇸 Amazon
PTRns-1302.awsdns-34.org
A205.251.197.22🇺🇸 Amazon
PTRns-1302.awsdns-34.org
NSns-2035.awsdns-62.co.uk
A2600:9000:5307:f300::1 🇺🇸 Amazon
PTRns-2035.awsdns-62.co.uk
A205.251.199.243🇺🇸 Amazon
PTRns-2035.awsdns-62.co.uk
MX21stcenturysoftware-com.mail.protection.outlook.com
A52.101.8.42🇺🇸 Microsoft
PTRmail-dm6pr03cu00402.inbound.protection.outlook.com
A52.101.8.51🇺🇸 Microsoft
PTRmail-dm1pr04cu00203.inbound.protection.outlook.com
A52.101.41.0🇺🇸 Microsoft
PTRmail-byapr05cu00400.inbound.protection.outlook.com
A52.101.41.26🇺🇸 Microsoft
PTRmail-sj0pr03cu01702.inbound.protection.outlook.com
A157.245.137.109🇺🇸 DIGITALOCEAN

com

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

21stcenturysoftware.com points to a single IP number: 157.245.137.109.

21stcenturysoftware.com is delegated to four name servers: ns-233.awsdns-29.com, ns-545.awsdns-04.net, ns-1302.awsdns-34.org and ns-2035.awsdns-62.co.uk.

21stcenturysoftware.com at least partially shares name servers with other domains, for instance mtapartment.it, minkusu.jp, ithinkinc.com, howwelisten.com and mlsoc.com.

These name servers are commonly used with ns-684.awsdns-21.net, ns-1069.awsdns-05.org, ns-1941.awsdns-50.co.uk, ns-1527.awsdns-62.org, ns-1959.awsdns-52.co.uk, ns-21.awsdns-02.com and ns-1358.awsdns-41.org.

Host names with two IP numbers:

ns-233.awsdns-29.com points to: 2600:9000:5300:e900::1 and 205.251.192.233.

ns-545.awsdns-04.net points to: 2600:9000:5302:2100::1 and 205.251.194.33.

ns-1302.awsdns-34.org points to: 2600:9000:5305:1600::1 and 205.251.197.22.

ns-2035.awsdns-62.co.uk points to: 2600:9000:5307:f300::1 and 205.251.199.243.

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

21stcenturysoftware-com.mail.protection.outlook.com resolves to four IPs: 52.101.8.42, 52.101.8.51, 52.101.41.0 and 52.101.41.26.

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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