ctc.cu - dns.ninja

`ctc.cu`

DNSSEC	⚠️ Not signed
A	190.92.127.211^{🇨🇺 INFOCOM190.92.112.0/20 LACNIC generated route for Empresa de Telecomunicaciones de Cuba, S.A.}
A	190.92.127.212^{🇨🇺 INFOCOM190.92.112.0/20 LACNIC generated route for Empresa de Telecomunicaciones de Cuba, S.A.}
NS	`ns3.ctc.cu` ⭐
		A	190.92.127.211^{🇨🇺 INFOCOM190.92.112.0/20 LACNIC generated route for Empresa de Telecomunicaciones de Cuba, S.A.}
NS	`ns1.ctc.cu`
		A	200.55.168.34^{🇨🇺 INFOCOM200.55.160.0/20}
NS	`ns2.ctc.cu`
		A	200.55.168.35^{🇨🇺 INFOCOM200.55.160.0/20}
NS	`ns4.ctc.cu`
MX	`mta1.ctc.cu` ⭐
		A	200.55.168.37^{🇨🇺 INFOCOM200.55.160.0/20}
MX	`mta2.ctc.cu` ⭐
		A	190.92.127.92^{🇨🇺 INFOCOM190.92.112.0/20 LACNIC generated route for Empresa de Telecomunicaciones de Cuba, S.A.}
			PTR	`mta2.ctc.cu`
TXT	`v=spf1 mx a:mta1.ctc.cu a:mta2.ctc.cu ip4:200.55.168.37 ip4:190.92.127.92 -all`
TXT	`Address: San Carlos y Pennalver. Centro Habana`
TXT	`Central de Trabajadores de Cuba`
TXT	`E-Mail: sysadmin@ctc.cu`
TXT	`Voice: +53-(7)7873 6996`
TXT	`IT Support: Jesse Johna`
TXT	`GPS:`
SOA	`ns3.ctc.cu`sysadmin@ctc.cu 2026-06-13 #1

`cu`

	DNSSEC	⚠️ Not signed
	NS	`ns2.ceniai.net.cu` ⭐
	NS	`cu.cctld.authdns.ripe.net` ⚠️ Not in parent delegation
	NS	`dns-com.ceniai.inf.cu` ⚠️ Not in parent delegation
	NS	`ns.canada.cuba.cu` ⚠️ Not in parent delegation
	NS	`ns.ceniai.net.cu`
	NS	`ns.dns.br` ⚠️ Not in parent delegation
	NS	`ns2.gip.net` ⚠️ Not in parent delegation
	NS	`rip.psg.com` ⚠️ Not in parent delegation
	SOA	`ns.ceniai.net.cu`cu-tech@ceniai.inf.cu 2026-08-03 #1

Subdomains

ns3.ctc.cu

mta1.ctc.cu

ns4.ctc.cu

ns1.ctc.cu

mta2.ctc.cu

cam.ctc.cu

ns2.ctc.cu

Same first word

ctc.church

ctc.gov.ng

ctc.jp

ctc.cz

ctc.bg

ctc.co.th

ctc.in

ctc.co.il

ctc.gy

ctc.ge

ctc.no

ctc.bm

ctc.com.mx

ctc.ba

ctc.ac.th

ctc.jo

ctc.edu.au

ctc.co.jp

ctc.edu.za

ctc.bar

ctc.com.vn

ctc.edu.vn

ctc.tw

ctc.com.sg

ctc.com

ctc.com.pk

ctc.nhs.uk

ctc.pt

ctc.com.br

ctc.care

ctc.fc.it

ctc.ie

ctc.org

ctc.sa

ctc.org.ge

ctc.gr.jp

ctc.sd

ctc.kz

ctc.net.vn

ctc.dz

ctc.biz

ctc.hu

ctc.su

ctc.edu.uy

ctc.cl

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ctc.rocks

ctc.mobi

ctc.tv

ctc.azurewebsites.net

ctc.fi

ctc.agency

ctc.lat

ctc.org.uk

ctc.me

ctc.sk

ctc.uk.com

ctc.dk

ctc.wang

ctc.org.hk

ctc.ms

ctc.ru

ctc.de

ctc.run

ctc.sx.cn

ctc.gov.qa

ctc.com.qa

ctc.sg

ctc.org.pk

ctc.nl

ctc.edu

ctc.co.uk

ctc.media

ctc.com.au

ctc.net.pk

ctc.kiev.ua

ctc.ac.kr

ctc.life

ctc.pl

ctc.to

ctc.services

ctc.uz

ctc.gov.kw

ctc.net.nz

ctc.my

ctc.org.tw

ctc.net.au

ctc.vn

ctc.mx

ctc.ad.jp

ctc.fm

ctc.cam

ctc.cu

ctc.kr

ctc.net

ctc.co

ctc.gov.tw

ctc.ac.uk

ctc.construction

ctc.solutions

ctc.edu.et

ctc.nm.cn

ctc.edu.do

ctc.cc

ctc.baby

ctc.mom

ctc.at

ctc.canva-apps.cn

ctc.lol

ctc.coop

ctc.training

ctc.com.ua

ctc.ne.jp

ctc.fr

ctc.com.tw

ctc.co.za

ctc.ac.jp

ctc.ca

ctc.net.jo

ctc.ltd

ctc.ee

ctc.be

ctc.ch

ctc.ac.cn

ctc.co.kr

ctc.it

ctc.guru

ctc.plus

ctc.se

ctc.lv

ctc.com.tr

Similar names

tcc.plus

tcc.co.zw

cct.no

tcc.wpmudev.host

cct.ma

tcc.com.br

cct.com

cct.org.pl

cct.or.th

cct.casino

tcc.li

cct.cz

tcc.cn

cct.com.mx

cct.sa

tcc.net.vn

cct.life

tcc.su

tcc.edu.vn

tcc.cl

cct.io

tcc.ua

tcc.ca

tcc.edu

tcc.us

cct.com.br

tcc.se

cct.lv

tcc.or.kr

cct.de

cct.org.nz

tcc.com.pl

tcc.gov.ge

tcc.ink

cct.yn.cn

tcc.kz

tcc.net.au

cct.jp

cct.be

cct.ne.jp

tcc.io

cct.co.id

cct.ac.th

cct.biz

tcc.name

tcc.com.cn

cct.sk

tcc.bg

cct.nu

tcc.world

cct.hu

cct.eu

cct.tools

tcc.com.pe

tcc.sg

cct.me

cct.edu.cn

cct.co.uk

cct.net.au

cct.org.tn

tcc.org.sg

tcc.eu.com

DNS History

14 records (8 active, 6 former)

○NSns.ctc.cu2017-06-28 → 2017-10-14 · 7 obs

○ 2016-12-26 12:15:04
● 2017-06-28 02:00:52
○ 2017-07-05 03:10:36
○ 2017-10-09 11:51:08
● 2017-10-14 17:34:30
○ 2017-11-14 02:14:18
○ 2026-08-04 04:44:38

●NSns1.ctc.cu2015-09-03 → 2026-08-04 · 11 obs

● 2015-09-03 11:57:28
● 2016-12-26 12:15:04
○ 2017-06-28 02:00:52
● 2017-07-05 03:10:36
● 2017-10-09 11:51:08
○ 2017-10-14 17:34:30
● 2017-11-14 02:14:18
● 2026-03-12 05:46:20
○ 2026-03-13 05:32:52
● 2026-03-13 21:35:52
● 2026-08-04 04:44:38

●NSns2.ctc.cu2018-06-28 → 2026-08-04 · 6 obs

○ 2017-11-14 02:14:18
● 2018-06-28 02:09:44
● 2026-03-12 05:46:20
○ 2026-03-13 05:32:52
● 2026-03-13 21:35:52
● 2026-08-04 04:44:38

●NSns3.ctc.cu2026-02-16 → 2026-08-04 · 6 obs

○ 2018-06-28 02:09:44
● 2026-02-16 20:57:32
● 2026-03-12 05:46:20
○ 2026-03-13 05:32:52
● 2026-03-13 21:35:52
● 2026-08-04 04:44:38

●NSns4.ctc.cu2026-02-16 → 2026-08-04 · 6 obs

○ 2018-06-28 02:09:44
● 2026-02-16 20:57:32
● 2026-03-12 05:46:20
○ 2026-03-13 05:32:52
● 2026-03-13 21:35:52
● 2026-08-04 04:44:38

●MXmta1.ctc.cu2021-01-30 → 2026-08-04 · 11 obs

○ 2020-05-22 20:08:42
● 2021-01-30 06:03:48
● 2026-03-12 05:46:20
○ 2026-03-13 05:32:52
● 2026-03-13 21:35:52
● 2026-06-12 20:59:38
○ 2026-06-14 23:19:24
● 2026-06-15 19:53:12
○ 2026-06-27 00:04:52
● 2026-07-02 01:53:44
● 2026-08-04 04:44:38

●MXmta2.ctc.cu2026-02-16 → 2026-08-04 · 11 obs

○ 2021-01-30 06:03:48
● 2026-02-16 20:57:32
● 2026-03-12 05:46:20
○ 2026-03-13 05:32:52
● 2026-03-13 21:35:52
● 2026-06-12 20:59:38
○ 2026-06-14 23:19:24
● 2026-06-15 19:53:12
○ 2026-06-27 00:04:52
● 2026-07-02 01:53:44
● 2026-08-04 04:44:38

○MXmx.ctc.cu2018-06-28 → 2018-09-12 · 5 obs

○ 2017-11-14 02:14:18
● 2018-06-28 02:09:44
● 2018-09-12 01:35:34
○ 2019-02-11 18:55:28
○ 2026-08-04 04:44:38

○MXns1.ctc.cu2019-02-11 → 2020-05-22 · 5 obs

○ 2018-09-12 01:35:34
● 2019-02-11 18:55:28
● 2020-05-22 20:08:42
○ 2021-01-30 06:03:48
○ 2026-08-04 04:44:38

○MXns3.ctc.cu2015-09-03 → 2017-11-14 · 4 obs

● 2015-09-03 11:57:28
● 2017-11-14 02:14:18
○ 2018-06-28 02:09:44
○ 2026-08-04 04:44:38

●A190.92.127.2112026-02-16 → 2026-08-04 · 34 obs

○ 2021-10-25 14:52:10
● 2026-02-16 20:57:32
● 2026-03-09 03:00:10
○ 2026-03-12 05:46:20
○ 2026-03-13 05:32:52
● 2026-03-13 21:35:52
○ 2026-03-14 07:39:48
● 2026-03-14 21:11:56
○ 2026-03-15 21:38:56
○ 2026-03-17 16:33:32
● 2026-03-23 03:50:26
● 2026-03-23 18:33:50
○ 2026-03-27 11:58:50
○ 2026-03-29 06:41:22
● 2026-03-31 06:37:42
● 2026-04-06 13:06:16
○ 2026-04-10 16:30:28
○ 2026-04-14 16:13:22
● 2026-04-22 16:05:40
○ 2026-04-28 10:57:10
● 2026-04-29 01:49:10
○ 2026-05-07 08:34:42
● 2026-05-16 06:37:54
● 2026-05-21 07:05:20
○ 2026-05-26 02:44:32
○ 2026-05-31 21:06:00
● 2026-06-04 03:11:06
● 2026-06-12 20:59:38
○ 2026-06-14 23:19:24
○ 2026-06-15 19:53:12
● 2026-06-21 01:54:12
○ 2026-06-27 00:04:52
● 2026-07-17 11:23:10
● 2026-08-04 04:44:38

●A190.92.127.2122026-02-16 → 2026-08-04 · 34 obs

○A200.55.168.342015-09-03 → 2026-07-02 · 37 obs

● 2015-09-03 11:57:28
● 2016-12-26 12:15:04
○ 2017-06-28 02:00:52
● 2017-07-05 03:10:36
● 2021-10-25 14:52:10
○ 2026-02-16 20:57:32
○ 2026-03-09 03:00:10
● 2026-03-12 05:46:20
○ 2026-03-13 05:32:52
○ 2026-03-13 21:35:52
● 2026-03-14 07:39:48
○ 2026-03-14 21:11:56
● 2026-03-15 21:38:56
● 2026-03-17 16:33:32
○ 2026-03-23 03:50:26
○ 2026-03-23 18:33:50
● 2026-03-27 11:58:50
● 2026-03-29 06:41:22
○ 2026-03-31 06:37:42
○ 2026-04-06 13:06:16
● 2026-04-10 16:30:28
● 2026-04-14 16:13:22
○ 2026-04-22 16:05:40
● 2026-04-28 10:57:10
○ 2026-04-29 01:49:10
● 2026-05-07 08:34:42
○ 2026-05-16 06:37:54
○ 2026-05-21 07:05:20
● 2026-05-26 02:44:32
● 2026-05-31 21:06:00
○ 2026-06-04 03:11:06
○ 2026-06-14 23:19:24
● 2026-06-15 19:53:12
○ 2026-06-21 01:54:12
● 2026-07-02 01:53:44
○ 2026-07-17 11:23:10
○ 2026-08-04 04:44:38

○A200.55.168.352017-10-14 → 2026-07-02 · 34 obs

○ 2017-07-05 03:10:36
● 2017-10-14 17:34:30
○ 2017-11-14 02:14:18
○ 2026-03-09 03:00:10
● 2026-03-12 05:46:20
○ 2026-03-13 05:32:52
○ 2026-03-13 21:35:52
● 2026-03-14 07:39:48
○ 2026-03-14 21:11:56
● 2026-03-15 21:38:56
● 2026-03-17 16:33:32
○ 2026-03-23 03:50:26
○ 2026-03-23 18:33:50
● 2026-03-27 11:58:50
● 2026-03-29 06:41:22
○ 2026-03-31 06:37:42
○ 2026-04-06 13:06:16
● 2026-04-10 16:30:28
● 2026-04-14 16:13:22
○ 2026-04-22 16:05:40
● 2026-04-28 10:57:10
○ 2026-04-29 01:49:10
● 2026-05-07 08:34:42
○ 2026-05-16 06:37:54
○ 2026-05-21 07:05:20
● 2026-05-26 02:44:32
● 2026-05-31 21:06:00
○ 2026-06-04 03:11:06
○ 2026-06-14 23:19:24
● 2026-06-15 19:53:12
○ 2026-06-21 01:54:12
● 2026-07-02 01:53:44
○ 2026-07-17 11:23:10
○ 2026-08-04 04:44:38

🔍 DNS Trace

Analysis

Hierarchy

The host names ns3.ctc.cu, mta1.ctc.cu, ns4.ctc.cu, ns1.ctc.cu and mta2.ctc.cu — among a few others — fall under the parent domain ctc.cu.

IP Addresses

ctc.cu points to the IP addresses 190.92.127.211 and 190.92.127.212

Other host names, among them ns4.ctc.cu and ns3.ctc.cu, have IP numbers in common with ctc.cu.

Name Servers

The authoritative name servers for ctc.cu are ns1.ctc.cu, ns2.ctc.cu, ns3.ctc.cu and ns4.ctc.cu.

ns1.ctc.cu, ns2.ctc.cu and ns3.ctc.cu each resolve to a single IP address: ns1.ctc.cu resolves to 200.55.168.34, ns2.ctc.cu resolves to 200.55.168.35 and ns3.ctc.cu resolves to 190.92.127.211.

Mail Servers

Mail for ctc.cu is handled by two mail servers — mta1.ctc.cu and mta2.ctc.cu.

ctc.cu overlaps on mail servers with certain other domains, cam.ctc.cu among them.

Each of mta1.ctc.cu and mta2.ctc.cu has one IP address: mta1.ctc.cu uses 200.55.168.37 and mta2.ctc.cu uses 190.92.127.92.