MXLIST.NET - 21.66.77.in-addr.arpa

Search for IP or hostnames:

21.66.77.in-addr.arpa checked at 2025-11-29T19:21:32.115Z 341ms 47/47/47 100% R:18 allDone:true timedOut:false

21.66.77.in-addr.arpa

NSauthns1.ngdc.net
A2001:1448:0:a800::53 🇩🇰 Netgroup A/S
PTRauthns1.ngdc.net
A217.30.38.181🇩🇰 Sentia Danmark
PTRdns1.sentia.dk
NSauthns2.ngdc.net
A2001:1448:0:a500::53 🇩🇰 Netgroup A/S
PTRauthns2.ngdc.net
A217.30.38.27🇩🇰 Sentia Danmark
PTRdns2.sentia.dk

66.77.in-addr.arpa

Up

Starts with same word

Starts similarily

AI analysis

21.66.77.in-addr.arpa is a parent of 9.21.66.77.in-addr.arpa, 11.21.66.77.in-addr.arpa, 161.21.66.77.in-addr.arpa and 98.21.66.77.in-addr.arpa.

Two name servers authns1.ngdc.net and authns2.ngdc.net handle the delegation for 21.66.77.in-addr.arpa.

21.66.77.in-addr.arpa shares the same name server setup as other domains, for instance cph.ngdc.net, cex3d.net, ngdc.biz, 255.116.217.in-addr.arpa and hardcoreprocessing.com.

21.66.77.in-addr.arpa shares name servers with other domains at least partially, for instance 124.66.77.in-addr.arpa, 76.66.77.in-addr.arpa, tackmann.dk and 227.116.217.in-addr.arpa.

Host names with two IP numbers:

authns1.ngdc.net points to 2001:1448:0:a800::53 and 217.30.38.181.

authns2.ngdc.net points to 2001:1448:0:a500::53 and 217.30.38.27.