NSLIST.NET - 221.2.209.in-addr.arpa
Search for IP or hostnames:
221.2.209.in-addr.arpa checked at 2025-10-07T12:45:16.472Z 373ms 39/39/39 100% R:13221.2.209.in-addr.arpa
| NS | ext-ns1.columbia.edu | ||||||
| A | 128.59.1.1🇺🇸 Columbia University | ||||||
| PTR | ext-ns1.columbia.edu | ||||||
| NS | ext-ns2.columbia.edu | ||||||
| A | 128.59.1.2🇺🇸 Columbia University | ||||||
| PTR | ext-ns2.columbia.edu | ||||||
2.209.in-addr.arpa
| NS | ns10-auth.windstream.net | ||||||
| NS | ns11-auth.windstream.net | ||||||
| NS | ns12-auth.windstream.net | ||||||
| NS | ns9-auth.windstream.net | ||||||
Starts with same word
221.net |
221.es |
221.co |
221.de |
221.in-addr.arpa |
221.tel |
221.ca |
221.com |
221.ru |
221.la |
221.org |
221.co.uk |
221.money |
221.cz |
221.cn |
221.it |
221.life |
221.com.ua |
221.us |
221.one |
Starts similarily
AI analysis
221.2.209.in-addr.arpa's delegation uses two name servers, ext-ns1.columbia.edu and ext-ns2.columbia.edu.
221.2.209.in-addr.arpa shares the same name server setup as other domains, for example cyan.college.columbia.edu, dyn.columbia.edu, columbiauniversity.info, gutenberg-e.org and 140.10.207.in-addr.arpa.
221.2.209.in-addr.arpa at least partially shares name servers with other domains, including neuro.columbia.edu, med.columbia.edu, gc.cuny.edu, lagcc.cuny.edu and cunyfirst.cuny.edu.
These name servers are typically used together with the name servers apollo.cs.columbia.edu, acme.ucc.cuny.edu, lavinia.cis.cuny.edu, sundog.ee.columbia.edu, ns1.nyp.org, ns2.nyp.org, ns10.customer.level3.net, ns15.customer.level3.net, diana.cs.columbia.edu and auth1.dns.cogentco.com.
Host names with a single IP:
ext-ns1.columbia.edu points to 128.59.1.1.
ext-ns2.columbia.edu points to 128.59.1.2.