DNSWHOIS.INFO - 172.18.in-addr.arpa
Search for IP or hostnames:
172.18.in-addr.arpa checked at 2025-11-04T14:55:41.135Z 118ms 58/58/58 100% R:11172.18.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 | ||||||
18.in-addr.arpa
| NS | r.arin.net | ||||||
| NS | u.arin.net | ||||||
| NS | x.arin.net | ||||||
| NS | y.arin.net | ||||||
| NS | z.arin.net | ||||||
| NS | arin.authdns.ripe.net | ||||||
Starts with same word
172.in | 
172.co | 
172.cc | 
172.ph | 
172.ir | 
172.com | 
172.one | 
172.aero | 
172.de | 
172.us | 
172.it | 
172.tw | 
172.ca | 
172.zone | 
172.ws | 
172.net | 
172.hk | 
172.la | 
172.nl | 
172.ch | 
172.fr | 
172.jp | 
172.org | 
172.in-addr.arpa | 
Starts similarily
AI analysis
172.18.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.
172.18.in-addr.arpa at least partially shares its name servers with other domains, for instance expedia.es, 148.65.18.in-addr.arpa, 119.71.35.in-addr.arpa, kingsizedirect.biz and artlover.com.
These name servers are commonly used together with pdns3.ultradns.org, pdns6.ultradns.co.uk, pdns2.ultradns.net, pdns5.ultradns.info, pdns4.ultradns.org, dns1.p01.nsone.net, dns2.p01.nsone.net and dns3.p01.nsone.net.
Host names with two IP numbers:
pdns1.ultradns.net points to: 2001:502:f3ff::1 and 204.74.108.1
Host names with one IP number:
x1.amazonaws.com points to: 156.154.64.10
x2.amazonaws.com points to: 156.154.65.10
x3.amazonaws.org points to: 156.154.150.1
x4.amazonaws.org points to: 204.74.120.1