CF1762646373407-tsm20251108202040

WWW.RTSAK.COM - 121.9.76.in-addr.arpa

Search for IP or hostnames:

121.9.76.in-addr.arpa checked at 2025-11-08T23:59:33.393Z 250ms 56/56/56 100% R:11

121.9.76.in-addr.arpa

NSnsca1.grid4.com
A208.72.100.3🇺🇸 Grid4 Communications
PTRnsca1.grid4.com
A208.72.100.4🇺🇸 Grid4 Communications
PTRnsca1.grid4.com
NSnsca2.grid4.com
A208.72.101.3🇺🇸 Grid4 Communications
PTRnsca2.grid4.com
A208.72.101.4🇺🇸 Grid4 Communications
PTRnsca2.grid4.com
NSnssl1.grid4.com
A208.72.100.2🇺🇸 Grid4 Communications
PTRnssl1.grid4.com
NSnssl2.grid4.com
A208.72.101.2🇺🇸 Grid4 Communications
PTRnssl2.grid4.com

9.76.in-addr.arpa

Starts with same word

Starts similarily

AI analysis

121.9.76.in-addr.arpa delegates to four name servers: nsca1.grid4.com, nsca2.grid4.com, nssl1.grid4.com and nssl2.grid4.com.

121.9.76.in-addr.arpa at least partially shares name servers with other domains, for instance 61.105.216.in-addr.arpa, 99.72.208.in-addr.arpa, 196.85.208.in-addr.arpa, 127.9.76.in-addr.arpa and 70.65.208.in-addr.arpa.

These name servers are commonly used alongside nscal.grid4.com.

Host names with two IP numbers:

nsca1.grid4.com points to: 208.72.100.3 and 208.72.100.4

nsca2.grid4.com points to: 208.72.101.3 and 208.72.101.4

Host names with one IP number:

nssl1.grid4.com points to: 208.72.100.2

nssl2.grid4.com points to: 208.72.101.2

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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