occ21.com - robtex.com

occ21.com

DNSSEC⚠️ Not signed
A119.205.211.103🇰🇷 KT-NET119.200.0.0/13 Korea Telecom, Seoul, Korea
NSroot.occ21.com ⭐
NSns3.cs21.com ⚠️ Not in zone NS records
A112.175.14.100🇰🇷 KT-NET112.168.0.0/13
NSns4.cs21.com ⚠️ Not in zone NS records
A183.111.144.126🇰🇷 KT-NET183.104.0.0/13 KORNET KOREA TELECOM
MXmail.occ21.com ⭐
A121.254.243.197🇰🇷 DACOM-NET121.254.128.0/17 contact noc@bora.net if necessary
PTRq05.asadal.net
TXTv=spf1 ip4:121.254.243.197 ip4:110.45.144.28 ip4:121.170.192.59 ~all
SOAroot.occ21.com2016041515 serial=3600

com

DNSSEC🔒 Signed (DS record present)
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
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1785591007

Subdomains

mail.occ21.com

Same first word

occ21.vn
occ21.com
occ21.co.jp

DNS History

10 records (5 active, 5 former)

20162017201820192020202120222023202420252026NSns3.cs21.comns4.cs21.comroot.occ21.comns1.asadal.netns2.asadal.netMXmail.occ21.comfilter_v.asadal.comA119.205.211.103121.254.243.197
○NS(root)2016-06-30 → 2016-10-29 · 5 obs
○ 2016-03-09 11:28:16
● 2016-06-30 21:25:52
● 2016-10-29 11:49:56
○ 2026-04-06 21:12:42
○ 2026-08-01 13:52:40
○NSns1.asadal.net2015-08-15 → 2016-03-09 · 4 obs
● 2015-08-15 17:23:48
● 2016-03-09 11:28:16
○ 2016-06-30 21:25:52
○ 2026-08-01 13:52:40
○NSns2.asadal.net2015-08-15 → 2016-03-09 · 4 obs
● 2015-08-15 17:23:48
● 2016-03-09 11:28:16
○ 2016-06-30 21:25:52
○ 2026-08-01 13:52:40
●NSns3.cs21.com2026-04-06 → 2026-08-01 · 3 obs
○ 2016-10-29 11:49:56
● 2026-04-06 21:12:42
● 2026-08-01 13:52:40
●NSns4.cs21.com2026-04-06 → 2026-08-01 · 3 obs
○ 2016-10-29 11:49:56
● 2026-04-06 21:12:42
● 2026-08-01 13:52:40
●NSroot.occ21.com2016-06-30 → 2026-08-01 · 3 obs
○ 2016-03-09 11:28:16
● 2016-06-30 21:25:52
● 2026-08-01 13:52:40
○MXfilter_v.asadal.com2015-08-15 → 2016-03-09 · 4 obs
● 2015-08-15 17:23:48
● 2016-03-09 11:28:16
○ 2016-06-30 21:25:52
○ 2026-08-01 13:52:40
●MXmail.occ21.com2016-06-30 → 2026-08-01 · 3 obs
○ 2016-03-09 11:28:16
● 2016-06-30 21:25:52
● 2026-08-01 13:52:40
●A119.205.211.1032016-06-30 → 2026-08-01 · 3 obs
○ 2016-03-09 11:28:16
● 2016-06-30 21:25:52
● 2026-08-01 13:52:40
○A121.254.243.1972015-08-15 → 2016-03-09 · 4 obs
● 2015-08-15 17:23:48
● 2016-03-09 11:28:16
○ 2016-06-30 21:25:52
○ 2026-08-01 13:52:40

🔍 DNS Trace

Analysis

Hierarchy

mail.occ21.com is delegated beneath occ21.com.

IP Addresses

occ21.com has exactly one IP address — 119.205.211.103.

kte.co.kr, kaems.co.kr, narasystem.co.kr plus two other host names have IP numbers in common with occ21.com.

Name Servers

occ21.com is delegated to three name servers: ns3.cs21.com, ns4.cs21.com and root.occ21.com.

There is at least partial name server overlap between occ21.com and other domains — superlok.com, cs21.kr, guposs.com and two more among them.

These name servers tend to appear together with the name servers ns1.namesvr.net, root.superlok.com and root.guposs.com, plus two others.

ns3.cs21.com → 112.175.14.100 and ns4.cs21.com → 183.111.144.126: one IP number per host name.

Mail Servers

occ21.com uses one mail server — mail.occ21.com.

mail.occ21.com resolves to a single IP number: 121.254.243.197.