CF1759844662361-tsm20251005211530

WWW.RTSAK.COM - 21.59.128.in-addr.arpa

Search for IP or hostnames:

21.59.128.in-addr.arpa checked at 2025-10-07T13:44:22.283Z 518ms 57/57/57 100% R:15

21.59.128.in-addr.arpa

NSext-ns1.columbia.edu
A128.59.1.1🇺🇸 Columbia University
PTRext-ns1.columbia.edu
NSext-ns2.columbia.edu
A128.59.1.2🇺🇸 Columbia University
PTRext-ns2.columbia.edu
NSapollo.cs.columbia.edu
A128.59.16.69🇺🇸 Columbia University
PTRapollo.cs.columbia.edu
NSdiana.cs.columbia.edu
A128.59.11.232🇺🇸 Columbia University
PTRdiana.cs.columbia.edu
NSsundog.ee.columbia.edu
A128.59.64.59🇺🇸 Columbia University
PTRriverside.ee.columbia.edu
PTRsundog.ee.columbia.edu

59.128.in-addr.arpa

NSext-ns1.columbia.edu
NSauth1.dns.cogentco.com
NSauth2.dns.cogentco.com
NSauth4.dns.cogentco.com
NSauth5.dns.cogentco.com

Up

Starts with same word

Starts similarily

AI analysis

21.59.128.in-addr.arpa is a parent of 5.21.59.128.in-addr.arpa, 161.21.59.128.in-addr.arpa, 9.21.59.128.in-addr.arpa, 104.21.59.128.in-addr.arpa and 142.21.59.128.in-addr.arpa.

21.59.128.in-addr.arpa is delegated to five name servers: ext-ns1.columbia.edu, ext-ns2.columbia.edu, apollo.cs.columbia.edu, diana.cs.columbia.edu and sundog.ee.columbia.edu.

21.59.128.in-addr.arpa at least partially shares name servers with other domains, for instance brooklyn.cuny.edu, braingenethics.cumc.columbia.edu, amistadresource.org, law.columbia.edu and laguardia.cuny.edu.

These name servers are commonly used with the following name servers: acme.ucc.cuny.edu, lavinia.cis.cuny.edu, ns1.nyp.org, ns2.nyp.org, ns10.customer.level3.net, ns15.customer.level3.net, auth1.dns.cogentco.com, auth2.dns.cogentco.com, auth4.dns.cogentco.com and auth5.dns.cogentco.com.

Host names with one IP number:

ext-ns1.columbia.edu points to 128.59.1.1

ext-ns2.columbia.edu points to 128.59.1.2

apollo.cs.columbia.edu points to 128.59.16.69

diana.cs.columbia.edu points to 128.59.11.232

sundog.ee.columbia.edu points to 128.59.64.59

Perform reverse DNS lookup as well as normal forward DNS. Check Autonomous System Numbers (ASNs) and BGP connections between Internet Service Providers.
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FJcXarG CF johedugfp 2025-10-07