CF1760664426971-tsm20251016114356

DNSWHOIS.INFO - 81.4.in-addr.arpa

Search for IP or hostnames:

81.4.in-addr.arpa checked at 2025-10-17T01:27:06.950Z 177ms 42/42/42 100% R:14

81.4.in-addr.arpa

NSdnsauth1.sys.gtei.net
A4.2.49.2🇺🇸 Lumen AS3356
PTRdnsauth1.level3.net
NSdnsauth2.sys.gtei.net
A4.2.49.3🇺🇸 Lumen AS3356
PTRdnsauth2.level3.net
NSdnsauth3.sys.gtei.net
A4.2.49.4🇺🇸 Lumen AS3356
PTRdnsauth3.level3.net

4.in-addr.arpa

NSr.arin.net
NSu.arin.net
NSx.arin.net
NSy.arin.net
NSz.arin.net
NSarin.authdns.ripe.net

Starts with same word

Starts similarily

AI analysis

81.4.in-addr.arpa is delegated to three name servers: dnsauth1.sys.gtei.net, dnsauth2.sys.gtei.net and dnsauth3.sys.gtei.net.

81.4.in-addr.arpa at least partially shares name servers with other domains, for instance 145.202.216.in-addr.arpa, 202.43.4.in-addr.arpa, 97.34.4.in-addr.arpa, 74.19.4.in-addr.arpa and 69.112.198.in-addr.arpa.

These name servers are commonly used with hyperion.haystack.edu and planck.haystack.edu.

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.

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

jNYtGid CF johedugfp 2025-10-17