CF1760361666642-tsm20251012143351

NSLIST.NET - 121.23.59.128.in-addr.arpa

Search for IP or hostnames:

121.23.59.128.in-addr.arpa checked at 2025-10-13T13:21:06.613Z 58ms 16/16/16 100% R:8

121.23.59.128.in-addr.arpa

PTRfaa2-406-csb.cs.columbia.edu
A128.59.23.121🇺🇸 Columbia University
PTRfaa2-406-csb.cs.columbia.edu

23.59.128.in-addr.arpa

NSext-ns1.columbia.edu
NSext-ns2.columbia.edu
NSapollo.cs.columbia.edu
NSdiana.cs.columbia.edu
NSsundog.ee.columbia.edu

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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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