DNSWHOIS.INFO - 21.164.146.in-addr.arpa
Search for IP or hostnames:
21.164.146.in-addr.arpa checked at 2025-10-31T23:45:04.896Z 693ms 42/42/42 100% R:1321.164.146.in-addr.arpa
| NS | ns.ufrj.br | ||||||
| A | 146.164.170.11🇧🇷 Fundacao de Amparo a Pesquisa | ||||||
| PTR | ns.ufrj.br | ||||||
| NS | nsx.ufrj.br | ||||||
| A | 200.156.137.11🇧🇷 Fundacao de Amparo a Pesquisa | ||||||
164.146.in-addr.arpa
| NS | ns.ufrj.br | ||||||
| NS | nsx.ufrj.br | ||||||
Up
| 68.21.164.146.in-addr.arpa | 
Starts with same word
Starts similarily
AI analysis
The parent of 68.21.164.146.in-addr.arpa is 21.164.146.in-addr.arpa.
21.164.146.in-addr.arpa is delegated to two name servers: ns.ufrj.br and nsx.ufrj.br.
21.164.146.in-addr.arpa uses the same name server setup as other domains, for instance 25.164.146.in-addr.arpa, dme.ufrj.br, forum.ufrj.br, cla.ufrj.br and pr4.ufrj.br.
21.164.146.in-addr.arpa shares name servers with other domains at least partially, for instance im.ufrj.br, 110.164.146.in-addr.arpa, lagesolos.ufrj.br, ie.ufrj.br and medicina.ufrj.br.
these name servers are commonly used with the name servers ns1.nce.ufrj.br, ns2.nce.ufrj.br, ns.coppe.ufrj.br, stic-dns.ufrj.br, ns.nce.ufrj.br, ns2.ufrj.br, ns.pads.ufrj.br, stic2-dns.ufrj.br, stic3-dns.ufrj.br and ns.lemt.ufrj.br. 
Host names with one IP number:
ns.ufrj.br points to: 146.164.170.11.
nsx.ufrj.br points to: 200.156.137.11.