worldcom.com - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`worldcom.com`

DNSSEC	⚠️ Not signed
A	198.4.5.230^{🇺🇸 AS701198.4.0.0/15 MCI Communications Services, LLC d/b/a Verizon Business}
NS	`omzdns9.verizon.com` ⭐
NS	`auth-ns1.verizonbusiness.com`
		A	199.249.19.10^{🇺🇸 AS3378199.249.19.0/24}
			PTR	`auth-ns1.verizonbusiness.com`
NS	`auth-ns2.verizonbusiness.com`
		A	199.249.18.65^{🇺🇸 AS3378199.249.18.0/24}
			PTR	`auth-ns2.verizonbusiness.com`
NS	`auth01.ns.uu.net` ⚠️ Not in zone NS records
		A	198.6.1.81^{🇺🇸 AS701198.6.0.0/16 MCI Communications Services, LLC d/b/a Verizon Business}
			PTR	`auth01.ns.uu.net`
NS	`auth50.ns.uu.net` ⚠️ Not in zone NS records
		A	198.6.1.161^{🇺🇸 AS701198.6.0.0/16 MCI Communications Services, LLC d/b/a Verizon Business}
			PTR	`auth50.ns.uu.net`
NS	`auth61.ns.uu.net` ⚠️ Not in zone NS records
		A	198.6.1.182^{🇺🇸 AS701198.6.0.0/16 MCI Communications Services, LLC d/b/a Verizon Business}
			PTR	`auth61.ns.uu.net`
TXT	`_o2ig1mdzylgr15ju7x9kiokczw4qpqr`
TXT	`_xm1ug3fyo8mfpchunddt6o6aizb0itj`
TXT	`_qlvlatxsmupnbvyt67t2l3chzlsmein`
SOA	`omzdns9.verizon.com`hostmaster@verizonbusiness.com serial=1194

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1786893279

rank #636062 globally
rank #261774 in the tld

MX for

nylbsc.com

Subdomains

www.worldcom.com

Same first word

worldcom.info

worldcom.net.br

worldcom.mobi

worldcom.dk

worldcom.co.jp

worldcom.co.uk

worldcom.cr

worldcom.org

worldcom.com.mx

worldcom.net

worldcom.co.in

worldcom.co.at

worldcom.com

worldcom.at

worldcom.lu

worldcom.ws

worldcom.it

worldcom.eu

worldcom.hu

worldcom.co.hu

worldcom.tm.fr

worldcom.ru

worldcom.fr

worldcom.us

worldcom.cn

worldcom.de

worldcom.co.cr

worldcom.gr

worldcom.ch

worldcom.ne.jp

Similar names

DNS History

8 records (7 active, 1 former)

●NSauth-ns1.verizonbusiness.com2015-08-20 → 2026-08-16 · 2 obs

● 2015-08-20 19:22:28
● 2026-08-16 15:16:08

●NSauth-ns2.verizonbusiness.com2015-08-20 → 2026-08-16 · 2 obs

● 2015-08-20 19:22:28
● 2026-08-16 15:16:08

●NSauth01.ns.uu.net2026-02-16 → 2026-08-16 · 3 obs

○ 2016-07-03 03:28:42
● 2026-02-16 02:32:00
● 2026-08-16 15:16:08

●NSauth50.ns.uu.net2026-02-16 → 2026-08-16 · 3 obs

○ 2016-07-03 03:28:42
● 2026-02-16 02:32:00
● 2026-08-16 15:16:08

●NSauth61.ns.uu.net2026-02-16 → 2026-08-16 · 3 obs

○ 2016-07-03 03:28:42
● 2026-02-16 02:32:00
● 2026-08-16 15:16:08

○NSomzdns3.vzbi.com2015-08-20 → 2016-06-15 · 4 obs

● 2015-08-20 19:22:28
● 2016-06-15 16:21:32
○ 2016-07-03 03:28:42
○ 2026-08-16 15:16:08

●NSomzdns9.verizon.com2016-07-03 → 2026-08-16 · 3 obs

○ 2016-06-15 16:21:32
● 2016-07-03 03:28:42
● 2026-08-16 15:16:08

●A198.4.5.2302015-08-20 → 2026-08-16 · 2 obs

● 2015-08-20 19:22:28
● 2026-08-16 15:16:08

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	e.gtld-servers.net, c.gtld-servers.net, m.gtld-servers.net, b.gtld-servers.net...	-
worldcom.com	auth01.ns.uu.net, auth61.ns.uu.net, auth50.ns.uu.net, auth-ns2.verizonbusiness.com...	2 records

✅ Authoritative Response

Server:198.6.1.81

NS records: auth01.ns.uu.net, auth61.ns.uu.net, auth50.ns.uu.net, auth-ns2.verizonbusiness.com, auth-ns1.verizonbusiness.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for worldcom.com (unsigned zone)

⏱️ Timing

Total: 598ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`198.4.5.230`
NS	2	`auth-ns2.verizonbusiness.com, auth-ns1.verizonbusiness.com`
TXT	3	`_o2ig1mdzylgr15ju7x9kiokczw4qpqr, _xm1ug3fyo8mfpchunddt6o6aizb0itj...`
SOA	1	`omzdns9.verizon.com hostmaster.verizonbu`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (auth-ns2.verizonbusiness.com, auth-ns1.verizonbusiness.com)

Analysis

Hierarchy

www.worldcom.com is delegated beneath worldcom.com.

Mail Server Role

nylbsc.com uses worldcom.com as a mail server.

foxtrot.worldcom.com routinely functions as a mail server together with worldcom.com.

IP Addresses

worldcom.com resolves to one IP address: 198.4.5.230.

Among the host names that share IP numbers with worldcom.com is worldcom.net, as one example.

Name Servers

worldcom.com carries NS records listing 6 name servers — omzdns9.verizon.com, auth-ns1.verizonbusiness.com, auth-ns2.verizonbusiness.com and 3 others.

There is at least partial name server overlap between worldcom.com and other domains — 72.85.63.in-addr.arpa, 167.45.65.in-addr.arpa, 203.47.209.in-addr.arpa and two more among them.

These name servers regularly appear alongside auth01.ns.uu.net, auth61.ns.uu.net, auth50.ns.uu.net and 7 other name servers in NS record sets.

Hosts with just one IP address:

auth-ns1.verizonbusiness.com resolves to the IP address 199.249.19.10.

auth-ns2.verizonbusiness.com resolves to the IP address 199.249.18.65.

auth01.ns.uu.net resolves to the IP address 198.6.1.81.

auth50.ns.uu.net resolves to the IP address 198.6.1.161.

auth61.ns.uu.net resolves to the IP address 198.6.1.182.