NSLIST.NET - 221.4.64.in-addr.arpa
Search for IP or hostnames:
221.4.64.in-addr.arpa checked at 2025-10-19T12:59:16.468Z 130ms 47/47/47 100% R:11221.4.64.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 | ||||||
4.64.in-addr.arpa
Starts with same word
221.cz |
221.life |
221.com.ua |
221.us |
221.one |
221.net |
221.es |
221.co |
221.de |
221.in-addr.arpa |
221.tel |
221.com |
221.ru |
221.la |
221.org |
221.co.uk |
221.money |
Starts similarily
AI analysis
Delegation for 221.4.64.in-addr.arpa rests with two name servers, auth1.dns.cogentco.com and auth2.dns.cogentco.com.
221.4.64.in-addr.arpa shares the same name server setup as other domains, including 8.6.204.in-addr.arpa, 129.2.81.in-addr.arpa, 69.198.in-addr.arpa, 48.88.38.in-addr.arpa and 1.0.208.in-addr.arpa.
221.4.64.in-addr.arpa at least partially shares name servers with other domains, for instance mcdistribution.us, barnard.edu, renegadetech.com, 93.115.209.in-addr.arpa and canadahealthinfoway.org.
these name servers are often used with nsa.ups.com, nsb.ups.com, cbru.br.ns.els-gms.att.net, cmtu.mt.ns.els-gms.att.net, ns1.vodafone-ip.de, ns2.vodafone-ip.de, ext-ns1.columbia.edu and auth4.dns.cogentco.com.
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.