CF1758845931404-tsm20250925114901

WWW.RTSAK.COM - 21.165.in-addr.arpa

Search for IP or hostnames:

21.165.in-addr.arpa checked at 2025-09-26T00:18:51.264Z 1074ms 53/53/53 100% R:9

21.165.in-addr.arpa

NSdnssec1.singnet.com.sg
A2001:c20:18:a::36 🇸🇬 SingNet
A165.21.83.11🇸🇬 SingNet
PTRdnssec1.singnet.com.sg
NSdnssec2.singnet.com.sg
A165.21.100.11🇸🇬 SingNet
PTRdnssec3.singnet.com.sg
NSdnssec3.singnet.com.sg
A2001:c20:10:a::37 🇸🇬 SingNet
A165.21.100.11🇸🇬 SingNet
PTRdnssec3.singnet.com.sg

165.in-addr.arpa

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

Up

Starts with same word

Starts similarily

AI analysis

21.165.in-addr.arpa has children including 73.21.165.in-addr.arpa, 66.21.165.in-addr.arpa, 1.21.165.in-addr.arpa, 104.21.165.in-addr.arpa, 165.21.165.in-addr.arpa and a few other host names.

21.165.in-addr.arpa is delegated to three name servers: dnssec1.singnet.com.sg, dnssec2.singnet.com.sg and dnssec3.singnet.com.sg.

At least part of the name servers for 21.165.in-addr.arpa are shared with other domains, for instance 173.42.115.in-addr.arpa, 80.185.58.in-addr.arpa, hagiwara.com.sg, 193.73.119.in-addr.arpa and thegiftstory.com.sg.

These name servers are commonly used alongside the name servers secdns2.starhub.net.sg.

Host names with two IP numbers:

dnssec1.singnet.com.sg points to 2001:c20:18:a::36 and 165.21.83.11; dnssec3.singnet.com.sg points to 2001:c20:10:a::37 and 165.21.100.11.

Host names with one IP number:

dnssec2.singnet.com.sg points to 165.21.100.11.

Host names that point to 165.21.100.11: dnssec3.singnet.com.sg and dnssec2.singnet.com.sg.

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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IghELxE CF johedugfp 2025-09-26