`centurylinkuser.net`

DNSSEC	⚠️ Not signed
NS	`authns1.qwest.net` ⭐ ⚠️ Not in parent delegation
		A	2001:428::5^{🇺🇸 AS2092001:428::/32}
			PTR	`authns1.qwest.net`
		A	63.150.72.4^{🇺🇸 AS20963.144.0.0/12}
			PTR	`authns1.centurylink.net`
			PTR	`authns1.qwest.net`
			PTR	`authns1.lumen.tech`
NS	`authns1.centurylink.net` ⚠️ Not in zone NS records
		A	2001:428::5^{🇺🇸 AS2092001:428::/32}
			PTR	`authns1.qwest.net`
		A	63.150.72.4^{🇺🇸 AS20963.144.0.0/12}
			PTR	`authns1.centurylink.net`
			PTR	`authns1.qwest.net`
			PTR	`authns1.lumen.tech`
NS	`authns2.centurylink.net` ⚠️ Not in zone NS records
		A	2001:428::6^{🇺🇸 AS2092001:428::/32}
			PTR	`authns2.qwest.net`
		A	208.44.130.120^{🇺🇸 AS209208.44.0.0/14}
			PTR	`authns2.centurylink.net`
			PTR	`authns2.qwest.net`
			PTR	`authns2.lumen.tech`
NS	`authns2.qwest.net` ⚠️ Not in parent delegation
		A	2001:428::6^{🇺🇸 AS2092001:428::/32}
			PTR	`authns2.qwest.net`
		A	208.44.130.120^{🇺🇸 AS209208.44.0.0/14}
			PTR	`authns2.centurylink.net`
			PTR	`authns2.qwest.net`
			PTR	`authns2.lumen.tech`
TXT	`v=spf1 -all`
SOA	`authns1.qwest.net`dns-admin@qwestip.net serial=2201230001

`net`

	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=1774657042

Same first word

centurylinkuser.net

centurylinkuser.com

DNS History

4 records (4 active, 0 former)

●NSauthns1.centurylink.net2026-02-15 → 2026-03-28 · 2 obs

● 2026-02-15 05:30:48
● 2026-03-28 00:46:08

●NSauthns1.qwest.net2026-02-15 → 2026-03-28 · 2 obs

● 2026-02-15 05:30:48
● 2026-03-28 00:46:08

●NSauthns2.centurylink.net2026-02-15 → 2026-03-28 · 2 obs

● 2026-02-15 05:30:48
● 2026-03-28 00:46:08

●NSauthns2.qwest.net2026-02-15 → 2026-03-28 · 2 obs

● 2026-02-15 05:30:48
● 2026-03-28 00:46:08

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	g.gtld-servers.net, d.gtld-servers.net, a.gtld-servers.net, l.gtld-servers.net...	-
centurylinkuser.net	authns1.centurylink.net, authns2.centurylink.net	4 records

✅ Authoritative Response

Server:208.44.130.120

NS records: authns1.centurylink.net, authns2.centurylink.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for centurylinkuser.net (unsigned zone)

⏱️ Timing

Total: 189ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`authns1.qwest.net, authns2.qwest.net`
TXT	1	`v=spf1 -all`
SOA	1	`authns1.qwest.net dns-admin.qwestip.net`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (authns1.centurylink.net, authns1.centurylink.net, authns2.centurylink.net...)

Analysis

Name Servers

centurylinkuser.net is delegated to four name servers: authns1.centurylink.net, authns2.centurylink.net, authns1.qwest.net and authns2.qwest.net.

centurylinkuser.net shares some name servers with other domains, for example 88.26.72.in-addr.arpa, 56.158.63.in-addr.arpa, 92.48.71.in-addr.arpa, 4.232.63.in-addr.arpa and 29.147.63.in-addr.arpa.

these name servers are often used with ns1.principal.com, auth20.ns.wcom.com, auth40.ns.uu.net, ns1.kmcmail.net, ns2.kmcmail.net, authns2.dnvr.qwest.net, authns1.mpls.qwest.net, authns3.sttl.qwest.net, ns1.bur.qwest.net and ns1.ewr.qwest.net.

Host names with two IP numbers:

authns1.centurylink.net points to: 2001:428::5 and 63.150.72.4.

authns2.centurylink.net points to: 2001:428::6 and 208.44.130.120.

authns1.qwest.net points to: 2001:428::5 and 63.150.72.4.

authns2.qwest.net points to: 2001:428::6 and 208.44.130.120.

Host names that point to 2001:428::5: authns1.centurylink.net and authns1.qwest.net.

Host names that point to 63.150.72.4: authns1.centurylink.net and authns1.qwest.net.

Host names that point to 2001:428::6: authns2.centurylink.net and authns2.qwest.net.

Host names that point to 208.44.130.120: authns2.centurylink.net and authns2.qwest.net.

centurylinkuser.net - robtex.com