WWW.RTSAK.COM - 56.21.216.in-addr.arpa
Search for IP or hostnames:
56.21.216.in-addr.arpa checked at 2025-11-02T13:54:13.965Z 159ms 42/42/42 100% R:1056.21.216.in-addr.arpa
| NS | ns1.firstcomm.com | ||||||
| A | 208.40.1.6🇺🇸 First Communications | ||||||
| PTR | ns1.firstcomm.com | ||||||
| NS | ns2.firstcomm.com | ||||||
| A | 168.92.1.6🇺🇸 GLOBALCOM-ASN | ||||||
| PTR | ns2.firstcomm.com | ||||||
21.216.in-addr.arpa
Up
Starts with same word
Starts similarily
AI analysis
56.21.216.in-addr.arpa has 29.56.21.216.in-addr.arpa, 226.56.21.216.in-addr.arpa and 233.56.21.216.in-addr.arpa as children.
Two name servers ns1.firstcomm.com and ns2.firstcomm.com handle the delegation for 56.21.216.in-addr.arpa.
56.21.216.in-addr.arpa shares the same name server setup as other domains, for example biz.sta.networkgci.net, 48.21.216.in-addr.arpa, 75.146.216.in-addr.arpa, 139.27.64.in-addr.arpa and 54.222.74.in-addr.arpa.
56.21.216.in-addr.arpa at least partially shares name servers with other domains, for example 201.7.69.in-addr.arpa, 217.7.69.in-addr.arpa, 222.7.69.in-addr.arpa, 196.7.69.in-addr.arpa and 223.7.69.in-addr.arpa.
These name servers are often used with ns3.cimcoisp.net, ns4.cimcoisp.net, ns1.interacs.net, ns2.interacs.net and ns3.interacs.net.
Host names with one IP number:
ns1.firstcomm.com points to 208.40.1.6; ns2.firstcomm.com points to 168.92.1.6.