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.cusysadmin@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.cucu-tech@ceniai.inf.cu 2026-08-03 #1 | ||||||
Subdomains
Same first word
Similar names
DNS History
14 records (8 active, 6 former)
○NSns.ctc.cu2017-06-28 → 2017-10-14 · 7 obs
● 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
● 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
● 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
● 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
● 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
● 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
● 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
● 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
● 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
● 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
● 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
● 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
○A200.55.168.342015-09-03 → 2026-07-02 · 37 obs
● 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
● 2017-10-14 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.