CF1760499891351-tsm20251014171359

WWW.RTSAK.COM - 1stcomp.com

Search for IP or hostnames:

1stcomp.com checked at 2025-10-15T03:44:51.327Z 722ms 137/137/137 100% R:16

1stcomp.com

NSedns3.ultradns.biz
A2610:a1:1015::203 🇺🇸 Neustar
PTRedns3.ultradns.biz
A204.74.67.3🇺🇸 Neustar
PTRedns3.ultradns.biz
NSedns3.ultradns.com
A2001:502:f3ff::203 🇺🇸 Neustar
PTRedns3.ultradns.com
A204.74.66.3🇺🇸 Neustar
PTRedns3.ultradns.com
NSedns3.ultradns.net
A2610:a1:1014::203 🇺🇸 Neustar
PTRedns3.ultradns.net
A204.74.110.3🇺🇸 Neustar
PTRedns3.ultradns.net
NSedns3.ultradns.org
A2001:502:4612::203 🇺🇸 Neustar
PTRedns3.ultradns.org
A204.74.111.3🇺🇸 Neustar
PTRedns3.ultradns.org
MXcust41543-1.in.mailcontrol.com
A208.87.233.190🇺🇸 Forcepoint Cloud
PTRcluster-g.mailcontrol.com
MXcust41543-2.in.mailcontrol.com
A208.87.234.190🇺🇸 Forcepoint Cloud
PTRcluster-h.mailcontrol.com
MX1stcomp-com.mail.protection.outlook.com
A2a01:111:f403:c902::7 🇺🇸 Microsoft
PTRmail-sj0pr02cu00107.inbound.protection.outlook.com
A2a01:111:f403:c92c::1 🇺🇸 Microsoft
PTRmail-dm6pr03cu00401.inbound.protection.outlook.com
A2a01:111:f403:f90f:: 🇺🇸 Microsoft
PTRmail-sa9pr04cu00100.inbound.protection.outlook.com
A2a01:111:f403:f913::1 🇺🇸 Microsoft
PTRmail-cy5pr05cu00101.inbound.protection.outlook.com
A52.101.10.6🇺🇸 Microsoft
PTRmail-bn1pr21cu00106.inbound.protection.outlook.com
A52.101.42.6🇺🇸 Microsoft
PTRmail-mw2pr02cu00306.inbound.protection.outlook.com
A52.101.194.17🇺🇸 Microsoft
PTRmail-ch5pr02cu00401.inbound.protection.outlook.com
A52.101.194.19🇺🇸 Microsoft
PTRmail-ch5pr02cu00303.inbound.protection.outlook.com
A204.74.99.103🇺🇸 Neustar

com

NSa.gtld-servers.net
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
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NSl.gtld-servers.net
NSm.gtld-servers.net

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AI analysis

The parent of mail.1stcomp.com is 1stcomp.com.

1stcomp.com points to a single IP address: 204.74.99.103.

Other host names such as japanpensions.com, elta.net, mail2.1stchoicehotels.com, dfmsim.de and lgfmobile.com share IPs with 1stcomp.com.

1stcomp.com is delegated to four name servers: edns3.ultradns.biz, edns3.ultradns.com, edns3.ultradns.net and edns3.ultradns.org.

1stcomp.com at least partially shares name servers with other domains, for example floridafleetservice.com, kellybluebook.info, 175.170.in-addr.arpa, autoauctionbyklode.com and rbcbank.com.

these name servers are commonly used with the following name servers: ns7.ultradns2.com, ns7.ultradns2.org, ns52.ultradns2.com, ns52.ultradns2.org, ns17.ultradns2.com, ns17.ultradns2.org, eur2.akam.net, eur6.akam.net, ns1-139.akam.net and usc5.akam.net.

Host names with two IP numbers:

edns3.ultradns.biz points to: 2610:a1:1015::203 and 204.74.67.3

edns3.ultradns.com points to: 2001:502:f3ff::203 and 204.74.66.3

edns3.ultradns.net points to: 2610:a1:1014::203 and 204.74.110.3

edns3.ultradns.org points to: 2001:502:4612::203 and 204.74.111.3

1stcomp.com is handled by three mail servers: cust41543-1.in.mailcontrol.com, cust41543-2.in.mailcontrol.com and 1stcomp-com.mail.protection.outlook.com.

1stcomp.com shares at least some mail servers with other domains, for instance qaroot.com, markelonline.com and cambridgealliance.com.

These mail servers are often used with mailhost.qaroot.com and cambridgealliance-com.mail.protection.outlook.com.

Eight IP numbers for a host: 1stcomp-com.mail.protection.outlook.com points to 2a01:111:f403:c902::7, 2a01:111:f403:c92c::1, 2a01:111:f403:f90f::, 2a01:111:f403:f913::1, 52.101.10.6, 52.101.42.6, 52.101.194.17 and 52.101.194.19.

One IP number: cust41543-1.in.mailcontrol.com points to 208.87.233.190.

Another one: cust41543-2.in.mailcontrol.com points to 208.87.234.190.

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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