CF1763285035488-tsm20251109205412

DNSWHOIS.INFO - 121.5.4.in-addr.arpa

Search for IP or hostnames:

121.5.4.in-addr.arpa checked at 2025-11-16T09:23:55.474Z 78ms 39/39/39 100% R:11 allDone:true timedOut:false

121.5.4.in-addr.arpa

NSdnsauth1.sys.gtei.net
A4.2.49.2🇺🇸 LEVEL3
PTRdnsauth1.level3.net
NSdnsauth2.sys.gtei.net
A4.2.49.3🇺🇸 LEVEL3
PTRdnsauth2.level3.net
NSdnsauth3.sys.gtei.net
A4.2.49.4🇺🇸 LEVEL3
PTRdnsauth3.level3.net

5.4.in-addr.arpa

NSdnsauth1.sys.gtei.net
NSdnsauth2.sys.gtei.net
NSdnsauth3.sys.gtei.net

Starts with same word

Starts similarily

AI analysis

The delegation for 121.5.4.in-addr.arpa is handled by three name servers: dnsauth1.sys.gtei.net, dnsauth2.sys.gtei.net and dnsauth3.sys.gtei.net.

121.5.4.in-addr.arpa shares name servers with other domains at least partially, for example 12.35.4.in-addr.arpa, 22.4.in-addr.arpa, 5.35.4.in-addr.arpa, 125.42.4.in-addr.arpa and 230.34.4.in-addr.arpa.

Host names with a single IP address: 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.

Perform reverse DNS lookup as well as normal forward DNS. Check Autonomous System Numbers (ASNs) and BGP connections between Internet Service Providers.
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