IPLIST.NET - 56.21.216.in-addr.arpa
Search for IP or hostnames:
56.21.216.in-addr.arpa checked at 2025-11-20T15:43:05.699Z 139ms 42/42/42 100% R:14 allDone:true timedOut:false 56.21.216.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 is a parent of 29.56.21.216.in-addr.arpa, 226.56.21.216.in-addr.arpa and 233.56.21.216.in-addr.arpa.
Two name servers ns1.firstcomm.com and ns2.firstcomm.com are delegated to 56.21.216.in-addr.arpa.
56.21.216.in-addr.arpa uses the same name server configuration as other domains, such as biz.sta.networkgci.net, 48.21.216.in-addr.arpa, 75.146.216.in-addr.arpa, 139.27.64.in-addr.arpa and 43.21.216.in-addr.arpa.
56.21.216.in-addr.arpa at least partially shares name servers with other domains such as 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 commonly used alongside the name servers ns3.cimcoisp.net, ns4.cimcoisp.net, ns1.interacs.net, ns2.interacs.net and ns3.interacs.net.
Host names with a single IP address:
ns1.firstcomm.com points to 208.40.1.6
ns2.firstcomm.com points to 168.92.1.6