DNSWHOIS.INFO - 173.128.in-addr.arpa
Search for IP or hostnames:
173.128.in-addr.arpa checked at 2025-09-08T14:51:45.916Z 1406ms 64/64/64 100% R:23173.128.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 | ||||||
| NS | clature.cns.vt.edu | ||||||
| A | 2001:468:c80:6101:0:100:0:65 🇺🇸 Virginia Polytechnic Institute and State Univ. | ||||||
| PTR | clature.cns.ipv6.vt.edu | ||||||
| PTR | spittlebug.cns.ipv6.vt.edu | ||||||
| A | 198.82.247.101🇺🇸 Virginia Polytechnic Institute and State Univ. | ||||||
| PTR | clature.cns.vt.edu | ||||||
| NS | nomen.cns.vt.edu | ||||||
| A | 2607:b400:e0:2010:0:100:0:25 🇺🇸 Virginia Polytechnic Institute and State Univ. | ||||||
| PTR | lacewing.cns.ipv6.vt.edu | ||||||
| PTR | nomen.cns.ipv6.vt.edu | ||||||
| A | 198.82.247.201🇺🇸 Virginia Polytechnic Institute and State Univ. | ||||||
| PTR | nomen.cns.vt.edu | ||||||
128.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 | ||||||
AI analysis
Four name servers, auth1.dns.cogentco.com, auth2.dns.cogentco.com, clature.cns.vt.edu, and nomen.cns.vt.edu, are delegated to 173.128.in-addr.arpa.
For instance, the name servers of 173.128.in-addr.arpa at least partially share with other domains such as 39.160.in-addr.arpa, 30.40.206.in-addr.arpa, t-mobile.com, 53.164.65.in-addr.arpa, and 112.246.38.in-addr.arpa.
The name servers nsa.ups.com, nsb.ups.com, cbru.br.ns.els-gms.att.net, cmtu.mt.ns.els-gms.att.net, ext-ns1.columbia.edu, auth4.dns.cogentco.com, and auth5.dns.cogentco.com are frequently utilized in conjunction.
auth1.dns.cogentco.com, auth2.dns.cogentco.com, clature.cns.vt.edu, and nomen.cns.vt.edu are DNS records that each point to two IP numbers: 2001:550:1:a::d and 66.28.0.14, 2001:550:1:b::d and 66.28.0.30, 2001:468:c80:6101:0:100:0:65 and 198.82.247.101, 2607:b400:e0:2010:0:100:0:25 and 198.82.247.201 respectively.