`tlmcorp.vn`

DNSSEC	⚠️ Not signed
A	203.205.31.221^{🇻🇳 CMC-1203.205.31.0/24 CMCTELECOM-VN}
		PTR	`static.cmcti.vn`
NS	`ns1.dotvndns.vn` ⭐ ⚠️ Not in zone NS records
		A	2406:9c80::66^{🇻🇳 SUPERDATA2406:9c80::/48 -VN}
			PTR	`ns1.dotvndns.vn`
		A	112.213.89.3^{🇻🇳 SUPERDATA112.213.89.0/24 Vietnam Internet Network Information Center (VNNIC) 18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam 24th floor, VNTA Tower, Duong Dinh Nghe, Cau Giay, Hanoi}
			PTR	`ns1.dotvndns.vn`
NS	`ns2.dotvndns.vn` ⚠️ Not in zone NS records
		A	2406:9c80::9000:111^{🇻🇳 SUPERDATA2406:9c80::/48 -VN}
			PTR	`ns2.dotvndns.vn`
		A	222.255.121.247^{🇻🇳 VDC222.255.121.0/24 VNPT}
			PTR	`static.vdc.vn`
			PTR	`static.vnpt.vn`
NS	`ns2.pavietnam.vn` ⚠️ Not in parent delegation
		A	2406:9c80::9000:111^{🇻🇳 SUPERDATA2406:9c80::/48 -VN}
			PTR	`ns2.dotvndns.vn`
		A	222.255.121.247^{🇻🇳 VDC222.255.121.0/24 VNPT}
			PTR	`static.vdc.vn`
			PTR	`static.vnpt.vn`
NS	`nsbak.dotvndns.com` ⚠️ Not in zone NS records
		A	2406:9c80::9000:302^{🇻🇳 SUPERDATA2406:9c80::/48 -VN}
			PTR	`nsbak.dotvndns.com`
		A	112.213.89.22^{🇻🇳 SUPERDATA112.213.89.0/24 Vietnam Internet Network Information Center (VNNIC) 18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam 24th floor, VNTA Tower, Duong Dinh Nghe, Cau Giay, Hanoi}
			PTR	`ns8922.dotvndns.vn`
NS	`nsbak.pavietnam.net` ⚠️ Not in parent delegation
		A	2406:9c80::9000:302^{🇻🇳 SUPERDATA2406:9c80::/48 -VN}
			PTR	`nsbak.dotvndns.com`
		A	112.213.89.22^{🇻🇳 SUPERDATA112.213.89.0/24 Vietnam Internet Network Information Center (VNNIC) 18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam 24th floor, VNTA Tower, Duong Dinh Nghe, Cau Giay, Hanoi}
			PTR	`ns8922.dotvndns.vn`
MX	`mail92219.maychuemail.com` ⭐
		A	112.213.92.219^{🇻🇳 SUPERDATA112.213.92.0/24 Vietnam Internet Network Information Center (VNNIC) 18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam 24th floor, VNTA Tower, Duong Dinh Nghe, Cau Giay, Hanoi}
			PTR	`mail92219.maychuemail.com`
MX	`mx92219.maychuemail.net`⁽¹⁰⁾
		A	112.213.92.219^{🇻🇳 SUPERDATA112.213.92.0/24 Vietnam Internet Network Information Center (VNNIC) 18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam 24th floor, VNTA Tower, Duong Dinh Nghe, Cau Giay, Hanoi}
			PTR	`mail92219.maychuemail.com`
TXT	`_165orukhdezzjdf6wkszm7c6qgv8727`
TXT	`v=spf1 include:spf.maychuemail.com ~all`
TXT	`_3wwnoxq67ohpwaadbkbuufkrusg9au6`
TXT	`skqs52dftpxpdqmd0ckgbn56xp7591gy`
SOA	`ns1.dotvndns.vn`hostmaster@tlmcorp.vn 2026-04-18 #56

`vn`

	DNSSEC	🔒 Signed (DS record present)
	NS	`dns-master.vnnic.vn` ⭐
	NS	`a.dns-servers.vn`
	NS	`b.dns-servers.vn`
	NS	`c.dns-servers.vn`
	NS	`d.dns-servers.vn`
	NS	`e.dns-servers.vn`
	NS	`f.dns-servers.vn`
	NS	`g.dns-servers.vn`
	NS	`h.dns-servers.vn`
	SOA	`dns-master.vnnic.vn`postmaster@vnnic.vn serial=2030753469

Subdomains

www.tlmcorp.vn

Same first word

tlmcorp.com

tlmcorp.vn

tlmcorp.net

Similar names

lmtcorp.com

mcltpro.ru

mltcorp.com

mltcorp.co.za

mtlcorp.com

tlcprom.com

tmlcorp.com

DNS History

12 records (8 active, 4 former)

●NSns1.dotvndns.vn2019-03-23 → 2026-05-09 · 2 obs

● 2019-03-23 01:31:52
● 2026-05-09 18:58:54

○NSns1.pavietnam.vn2019-03-23 → 2019-03-23 · 3 obs

● 2019-03-23 01:31:52
○ 2026-05-01 06:36:00
○ 2026-05-09 18:58:54

●NSns2.dotvndns.vn2026-05-01 → 2026-05-09 · 3 obs

○ 2019-03-23 01:31:52
● 2026-05-01 06:36:00
● 2026-05-09 18:58:54

●NSns2.pavietnam.vn2019-03-23 → 2026-05-09 · 2 obs

● 2019-03-23 01:31:52
● 2026-05-09 18:58:54

●NSnsbak.dotvndns.com2026-05-01 → 2026-05-09 · 3 obs

○ 2019-03-23 01:31:52
● 2026-05-01 06:36:00
● 2026-05-09 18:58:54

●NSnsbak.pavietnam.net2019-03-23 → 2026-05-09 · 2 obs

● 2019-03-23 01:31:52
● 2026-05-09 18:58:54

○MXmail25435.maychuemail.com2019-03-23 → 2019-03-23 · 3 obs

● 2019-03-23 01:31:52
○ 2026-05-01 06:36:00
○ 2026-05-09 18:58:54

●MXmail92219.maychuemail.com2026-05-01 → 2026-05-09 · 3 obs

○ 2019-03-23 01:31:52
● 2026-05-01 06:36:00
● 2026-05-09 18:58:54

○MXmx25435.maychuemail.net2019-03-23 → 2019-03-23 · 3 obs

● 2019-03-23 01:31:52
○ 2026-05-01 06:36:00
○ 2026-05-09 18:58:54

●MXmx92219.maychuemail.net2026-05-01 → 2026-05-09 · 3 obs

○ 2019-03-23 01:31:52
● 2026-05-01 06:36:00
● 2026-05-09 18:58:54

○A103.255.237.1992019-03-23 → 2019-03-23 · 3 obs

● 2019-03-23 01:31:52
○ 2026-05-01 06:36:00
○ 2026-05-09 18:58:54

●A203.205.31.2212026-05-01 → 2026-05-09 · 3 obs

○ 2019-03-23 01:31:52
● 2026-05-01 06:36:00
● 2026-05-09 18:58:54

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
vn	a.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn, d.dns-servers.vn...	-
tlmcorp.vn	ns1.dotvndns.vn, ns2.dotvndns.vn, nsbak.dotvndns.com	4 records

✅ Authoritative Response

Server:112.213.89.3

NS records: ns1.dotvndns.vn, ns2.dotvndns.vn, nsbak.dotvndns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for tlmcorp.vn (unsigned zone)

⏱️ Timing

Total: 1853ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`203.205.31.221`
NS	2	`nsbak.pavietnam.net, ns2.pavietnam.vn`
MX	2	`mx92219.maychuemail.net (pri: 10), mail92219.maychuemail.com (pri: 5)`
TXT	4	`skqs52dftpxpdqmd0ckgbn56xp7591gy, v=spf1 include:spf.maychuemail.com ~all...`
SOA	1	`ns1.dotvndns.vn hostmaster.tlmcorp.vn`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns2.dotvndns.vn, ns1.dotvndns.vn, ns2.dotvndns.vn...)

Analysis

Hierarchy

tlmcorp.vn is a parent of www.tlmcorp.vn.

IP Addresses

tlmcorp.vn points to a single IP address: 203.205.31.221.

Other host names such as gasshipping.com.vn, reyhotel.vn, www.beton6.com, giavietninhthuan.com and www.catnghi.vn share IP numbers with tlmcorp.vn.

Name Servers

tlmcorp.vn is delegated to five name servers: nsbak.dotvndns.com, nsbak.pavietnam.net, ns1.dotvndns.vn, ns2.dotvndns.vn and ns2.pavietnam.vn.

At least part of the name servers for tlmcorp.vn are shared with other domains, for instance baovengaydempro.com, doanhnhanthanhdat.vn, cuc.edu.vn, hallosaigon.edu.vn and bluelakehomestay.com.

these name servers are commonly used with ns1.pavietnam.vn, ns3.dotvndns.vn, ns1.nina.vn, nsbak.dotvndns.vn and nsbak.pavietnam.vn.

Host names with two IP numbers:

The host name nsbak.dotvndns.com points to: 2406:9c80::9000:302 and 112.213.89.22.

The host name nsbak.pavietnam.net points to: 2406:9c80::9000:302 and 112.213.89.22.

The host name ns1.dotvndns.vn points to: 2406:9c80::66 and 112.213.89.3.

The host name ns2.dotvndns.vn points to: 2406:9c80::9000:111 and 222.255.121.247.

The host name ns2.pavietnam.vn points to: 2406:9c80::9000:111 and 222.255.121.247.

Host names that point to 2406:9c80::9000:302: nsbak.dotvndns.com and nsbak.pavietnam.net.

Host names that point to 112.213.89.22: nsbak.dotvndns.com and nsbak.pavietnam.net.

Host names that point to 2406:9c80::9000:111: ns2.dotvndns.vn and ns2.pavietnam.vn.

Host names that point to 222.255.121.247: ns2.dotvndns.vn and ns2.pavietnam.vn.

Mail Servers

tlmcorp.vn is handled by two mail servers: mail92219.maychuemail.com and mx92219.maychuemail.net.

tlmcorp.vn uses the same mail server setup as other domains, for instance dtpmedical.vn, bestray.com, minhkhoamedical.com.vn, tuvaco.vn and vlvn-co.com.

tlmcorp.vn shares at least some mail servers with other domains, for example icare.center, modunsoft.com, mucinquoctin.com, happyhouse.edu.vn and seastarresort.com.

Host names sharing a single IP: mail92219.maychuemail.com and mx92219.maychuemail.net point to 112.213.92.219.

tlmcorp.vn - robtex.com

tlmcorp.vn

vn

Subdomains

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

Hierarchy

IP Addresses

Name Servers

Mail Servers

`tlmcorp.vn`

`vn`