`mail.num.vn`

CNAME	`num.vn`
DNSSEC	⚠️ Not signed
A	45.119.84.172^{🇻🇳 LVSS-AS-VN45.119.84.0/24 LVSS-VN}
NS	`x.hkda.vn` ⭐ ⚠️ Not in parent delegation
		A	167.114.147.95^{🇨🇦 OVH167.114.128.0/18 Hosting route}
NS	`b.url.com.vn` ⚠️ Not in zone NS records
		A	45.119.84.172^{🇻🇳 LVSS-AS-VN45.119.84.0/24 LVSS-VN}
NS	`s.url.com.vn` ⚠️ Not in zone NS records
		A	45.119.84.172^{🇻🇳 LVSS-AS-VN45.119.84.0/24 LVSS-VN}
NS	`y.hkda.vn` ⚠️ Not in parent delegation
		A	51.79.210.111^{🇸🇬 OVH51.79.128.0/17 Hosting route}
NS	`z.hkda.vn` ⚠️ Not in parent delegation
		A	45.119.84.172^{🇻🇳 LVSS-AS-VN45.119.84.0/24 LVSS-VN}
MX	`num.vn` ⭐
		A	45.119.84.172^{🇻🇳 LVSS-AS-VN45.119.84.0/24 LVSS-VN}
TXT	`v=spf1 +a +mx +ip4:45.119.84.172 ~all`
SOA	`x.hkda.vn`kythuat@hkda.vn 2025-10-12 #0

`num.vn`

	DNSSEC	⚠️ Not signed
	A	45.119.84.172^{🇻🇳 LVSS-AS-VN45.119.84.0/24 LVSS-VN}
	NS	`x.hkda.vn` ⭐ ⚠️ Not in parent delegation
	NS	`b.url.com.vn` ⚠️ Not in zone NS records
	NS	`s.url.com.vn` ⚠️ Not in zone NS records
	NS	`y.hkda.vn` ⚠️ Not in parent delegation
	NS	`z.hkda.vn` ⚠️ Not in parent delegation
	MX	`num.vn` ⭐
	TXT	`v=spf1 +a +mx +ip4:45.119.84.172 ~all`
	SOA	`x.hkda.vn`kythuat@hkda.vn 2025-10-12 #0

Previously MX for

num.vn

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DNS History

2 records (1 active, 1 former)

○A103.18.6.1802018-05-22 → 2018-05-22 · 2 obs

● 2018-05-22 04:01:26
○ 2026-06-17 16:45:46

●CNAMEnum.vn2026-06-17 → 2026-06-17 · 1 obs

● 2026-06-17 16:45:46

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
vn	a.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn, d.dns-servers.vn...	-
num.vn	b.url.com.vn, s.url.com.vn	-

✅ Authoritative Response

Server:45.119.84.172

NS records: b.url.com.vn, s.url.com.vn

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for num.vn (unsigned zone)

⏱️ Timing

Total: 1842ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`num.vn`

Analysis

IP Addresses

mail.num.vn directs to one IP number, which is 45.119.84.172.

Among the host names that share IP numbers with mail.num.vn are hro.vn, transfer.vn, adf.vn and two others.

Name Servers

The authoritative name servers for mail.num.vn are x.hkda.vn, y.hkda.vn, z.hkda.vn and two others.

The name servers of mail.num.vn overlap at least partially with those of other domains — among them vpn.com.vn, arc.com.vn, microlife.vn and two more.

These name servers commonly appear alongside the name servers b.url.com.vn and s.url.com.vn.

Hosts that resolve to one IP address:

The hostname x.hkda.vn resolves to 167.114.147.95.

The hostname y.hkda.vn resolves to 51.79.210.111.

The hostname z.hkda.vn resolves to 45.119.84.172.

The hostname b.url.com.vn resolves to 45.119.84.172.

The hostname s.url.com.vn resolves to 45.119.84.172.

z.hkda.vn, b.url.com.vn and s.url.com.vn all direct to 45.119.84.172.

Mail Servers

mail.num.vn routes its mail through a single mail server, num.vn.

mail.num.vn and domains like num.vn share an identical mail server configuration.

num.vn carries a single IP number, which is 45.119.84.172.

mail.num.vn - robtex.com

mail.num.vn

num.vn