IPLIST.NET - 121.177.216.in-addr.arpa
Search for IP or hostnames:
121.177.216.in-addr.arpa checked at 2025-11-08T17:43:50.234Z 253ms 47/47/47 100% R:14121.177.216.in-addr.arpa
| NS | auth1.dns.cogentco.com | ||||||
| A | 2001:550:1:a::d 🇺🇸 Cogent Communications, Inc. | ||||||
| PTR | auth1.dns.cogentco.com | ||||||
| A | 66.28.0.14🇺🇸 Cogent Communications, Inc. | ||||||
| PTR | auth1.dns.cogentco.com | ||||||
| NS | auth2.dns.cogentco.com | ||||||
| A | 2001:550:1:b::d 🇺🇸 Cogent Communications, Inc. | ||||||
| PTR | auth2.dns.cogentco.com | ||||||
| A | 66.28.0.30🇺🇸 Cogent Communications, Inc. | ||||||
| PTR | auth2.dns.cogentco.com | ||||||
177.216.in-addr.arpa
Starts with same word
Starts similarily
AI analysis
Delegation for 121.177.216.in-addr.arpa rests with two name servers, auth1.dns.cogentco.com and auth2.dns.cogentco.com.
121.177.216.in-addr.arpa shares the same name server setup as other domains, including 242.167.63.in-addr.arpa, 216.3.206.in-addr.arpa, dial.cogentco.com, 255.101.38.in-addr.arpa and 64.202.38.in-addr.arpa.
121.177.216.in-addr.arpa at least partially shares name servers with other domains, for instance deutschlandfunk.de, schneidernational.com, 239.41.209.in-addr.arpa, infrabel.be and ups.my.
These name servers are commonly used together with cbru.br.ns.els-gms.att.net, cmtu.mt.ns.els-gms.att.net, ns1.fnsi.net, ns2.fnsi.net, ns3.fnsi.net, nsa.ups.com, nsb.ups.com, ns1.vodafone-ip.de and ns2.vodafone-ip.de.
Host names with two IP numbers: auth1.dns.cogentco.com points to 2001:550:1:a::d and 66.28.0.14; auth2.dns.cogentco.com points to 2001:550:1:b::d and 66.28.0.30.