DNSWHOIS.INFO - 21.81.99.in-addr.arpa
Search for IP or hostnames:
21.81.99.in-addr.arpa checked at 2025-10-26T16:07:28.855Z 105ms 48/48/48 100% R:1121.81.99.in-addr.arpa
| NS | ns1-24-eu-west-1.ec2-rdns.amazonaws.com | ||||||
| A | 205.251.192.1🇺🇸 Amazon | ||||||
| PTR | ns-1.awsdns-00.com | ||||||
| NS | ns2-24-eu-west-1.ec2-rdns.amazonaws.com | ||||||
| A | 205.251.197.37🇺🇸 Amazon | ||||||
| PTR | ns-1317.awsdns-36.org | ||||||
| NS | ns3-24-eu-west-1.ec2-rdns.amazonaws.com | ||||||
| A | 205.251.199.29🇺🇸 Amazon | ||||||
| PTR | ns-1821.awsdns-35.co.uk | ||||||
| NS | ns4-24-eu-west-1.ec2-rdns.amazonaws.com | ||||||
| A | 205.251.194.36🇺🇸 Amazon | ||||||
| PTR | ns-548.awsdns-04.net | ||||||
81.99.in-addr.arpa
| NS | ns1-16-eu-west-1.ec2-rdns.amazonaws.com | ||||||
| NS | ns2-16-eu-west-1.ec2-rdns.amazonaws.com | ||||||
| NS | ns3-16-eu-west-1.ec2-rdns.amazonaws.com | ||||||
| NS | ns4-16-eu-west-1.ec2-rdns.amazonaws.com | ||||||
Up
120.21.81.99.in-addr.arpa |
143.21.81.99.in-addr.arpa |
70.21.81.99.in-addr.arpa |
111.21.81.99.in-addr.arpa |
138.21.81.99.in-addr.arpa |
77.21.81.99.in-addr.arpa |
85.21.81.99.in-addr.arpa |
18.21.81.99.in-addr.arpa |
84.21.81.99.in-addr.arpa |
186.21.81.99.in-addr.arpa |
149.21.81.99.in-addr.arpa |
250.21.81.99.in-addr.arpa |
190.21.81.99.in-addr.arpa |
Starts with same word
Starts similarily
AI analysis
21.81.99.in-addr.arpa is the parent of 120.21.81.99.in-addr.arpa, 143.21.81.99.in-addr.arpa, 70.21.81.99.in-addr.arpa, 111.21.81.99.in-addr.arpa, 138.21.81.99.in-addr.arpa and a few other host names.
21.81.99.in-addr.arpa is delegated to four name servers: ns1-24-eu-west-1.ec2-rdns.amazonaws.com, ns2-24-eu-west-1.ec2-rdns.amazonaws.com, ns3-24-eu-west-1.ec2-rdns.amazonaws.com and ns4-24-eu-west-1.ec2-rdns.amazonaws.com.
21.81.99.in-addr.arpa shares name servers with other domains at least partially, for example 237.194.54.in-addr.arpa, 39.49.52.in-addr.arpa, 52.74.54.in-addr.arpa, 216.250.3.in-addr.arpa and 123.253.34.in-addr.arpa.
Host names with a single IP:
ns1-24-eu-west-1.ec2-rdns.amazonaws.com points to 205.251.192.1
ns2-24-eu-west-1.ec2-rdns.amazonaws.com points to 205.251.197.37
ns3-24-eu-west-1.ec2-rdns.amazonaws.com points to 205.251.199.29
ns4-24-eu-west-1.ec2-rdns.amazonaws.com points to 205.251.194.36