WWW.RTSAK.COM - 203.21.72.in-addr.arpa
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203.21.72.in-addr.arpa checked at 2025-10-27T23:59:46.779Z 205ms 61/61/61 100% R:14203.21.72.in-addr.arpa
| NS | x1.amazonaws.com | ||||||
| A | 156.154.64.10🇺🇸 Neustar | ||||||
| PTR | u1.amazonaws.com | ||||||
| NS | x2.amazonaws.com | ||||||
| A | 156.154.65.10🇺🇸 Neustar | ||||||
| PTR | u2.amazonaws.com | ||||||
| NS | pdns1.ultradns.net | ||||||
| A | 2001:502:f3ff::1 🇺🇸 Neustar | ||||||
| PTR | pdns1.ultradns.net | ||||||
| A | 204.74.108.1🇺🇸 Neustar | ||||||
| PTR | pdns1.ultradns.net | ||||||
| NS | x3.amazonaws.org | ||||||
| A | 156.154.150.1🇺🇸 AS399161 | ||||||
| PTR | dns-01.ultradns2.com | ||||||
| NS | x4.amazonaws.org | ||||||
| A | 204.74.120.1🇺🇸 AS399160 | ||||||
| PTR | dns-01.ultradns2.org | ||||||
21.72.in-addr.arpa
Up
207.203.21.72.in-addr.arpa |
154.203.21.72.in-addr.arpa |
159.203.21.72.in-addr.arpa |
54.203.21.72.in-addr.arpa |
33.203.21.72.in-addr.arpa |
208.203.21.72.in-addr.arpa |
53.203.21.72.in-addr.arpa |
94.203.21.72.in-addr.arpa |
89.203.21.72.in-addr.arpa |
Starts with same word
203.bet |
203.org |
203.in |
203.nu |
203.fr |
203.ws |
203.se |
203.de |
203.cc |
203.com |
203.pl |
203.tel |
203.cz |
203.tv |
203.me |
203.ca |
203.am |
203.one |
203.it |
203.eu |
203.in-addr.arpa |
203.ph |
Starts similarily
AI analysis
203.21.72.in-addr.arpa is the parent of 207.203.21.72.in-addr.arpa, 154.203.21.72.in-addr.arpa, 159.203.21.72.in-addr.arpa, 54.203.21.72.in-addr.arpa, 33.203.21.72.in-addr.arpa and a few other host names.
203.21.72.in-addr.arpa is delegated to five name servers: x1.amazonaws.com, x2.amazonaws.com, pdns1.ultradns.net, x3.amazonaws.org and x4.amazonaws.org.
203.21.72.in-addr.arpa shares name servers with other domains at least partially, for example cbmjournal.com, fluorcareers.co.uk, 249.240.54.in-addr.arpa, skylineenglish.net and kingsizedirect.at.
these name servers are commonly used with the name servers pdns5.ultradns.info, pdns3.ultradns.org, pdns6.ultradns.co.uk, pdns2.ultradns.net, pdns4.ultradns.org, dns1.p01.nsone.net, dns2.p01.nsone.net, dns3.p01.nsone.net and dns4.p01.nsone.net.
Host pdns1.ultradns.net points to 2001:502:f3ff::1 and 204.74.108.1.
Host x1.amazonaws.com points to 156.154.64.10.
Host x2.amazonaws.com points to 156.154.65.10.
Host x3.amazonaws.org points to 156.154.150.1.
Host x4.amazonaws.org points to 204.74.120.1.