WWW.RTSAK.COM - 138.21.4.in-addr.arpa
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138.21.4.in-addr.arpa checked at 2025-10-03T20:01:58.116Z 255ms 45/45/45 100% R:11138.21.4.in-addr.arpa
| NS | dnsauth1.sys.gtei.net | ||||||
| A | 4.2.49.2🇺🇸 Lumen AS3356 | ||||||
| PTR | dnsauth1.level3.net | ||||||
| NS | dnsauth2.sys.gtei.net | ||||||
| A | 4.2.49.3🇺🇸 Lumen AS3356 | ||||||
| PTR | dnsauth2.level3.net | ||||||
| NS | dnsauth3.sys.gtei.net | ||||||
| A | 4.2.49.4🇺🇸 Lumen AS3356 | ||||||
| PTR | dnsauth3.level3.net | ||||||
21.4.in-addr.arpa
| NS | dnsauth1.sys.gtei.net | ||||||
| NS | dnsauth2.sys.gtei.net | ||||||
| NS | dnsauth3.sys.gtei.net | ||||||
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AI analysis
138.21.4.in-addr.arpa is the parent of 141.138.21.4.in-addr.arpa and 241.138.21.4.in-addr.arpa.
138.21.4.in-addr.arpa delegates to three name servers: dnsauth1.sys.gtei.net, dnsauth2.sys.gtei.net and dnsauth3.sys.gtei.net.
138.21.4.in-addr.arpa shares some name servers with other domains, for example 84.4.in-addr.arpa, gte-messaging.com, aginput.com, 240.126.204.in-addr.arpa and ntis.us.
These name servers are often used together with cyber2.gtenoc.com, dnsauth1.level3.net and dnsauth2.level3.net.
Host names with a single IP: dnsauth1.sys.gtei.net points to 4.2.49.2; dnsauth2.sys.gtei.net points to 4.2.49.3; dnsauth3.sys.gtei.net points to 4.2.49.4.
dbq