Normally you can use Whois to query nameservers:

$ whois -h whois.verisign-grs.com “nameserver =ns1.inboxs.com”

Whois Server Version 2.0

Domain names in the .com and .net domains can now be registered
with many different competing registrars. Go to http://www.internic.net
for detailed information.

Server Name: NS1.INBOXS.COM
IP Address: 128.199.201.000
Registrar: GODADDY.COM, LLC
Whois Server: whois.godaddy.com
Referral URL: http://registrar.godaddy.com

>>> Last update of whois database: Thu, 03 Sep 2015 15:04:12 GMT <<< [bash][/bash] The implementation of this feature is up to the TLD. .GOV, for example, does not return nameserver queries: [bash][/bash] $ whois -h whois.nic.gov "nameserver =a.gov-servers.net" % DOTGOV WHOIS Server ready No match for nameserver "A.GOV-SERVERS.NET". >>> Last update of whois database: 2015-09-03T15:04:58Z <<< Please be advised that this whois server only contains information pertaining to the .GOV domain. For information for other domains please use the whois server at RS.INTERNIC.NET. [bash][/bash]

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