f.ns.192h.92.186.106.in-addr.arpa has no NS records.
NS records for this zone are defined at 192h.92.186.106.in-addr.arpa.
NS records for this zone are defined at 192h.92.186.106.in-addr.arpa.
Question and response
Question
dig f.ns.192h.92.186.106.in-addr.arpa. NS
Answer
The response has no answer records.
Authority
192h.92.186.106.in-addr.arpa. 2560 SOA a.ns.192h.92.186.106.in-addr.arpa. hostmaster.192h.92.186.106.in-addr.arpa. 1774704428 16384 2048 1048576 2560
Additional
The response has no additional records.