o2.ptr4336.netactuate.com has no NS records.
NS records for this zone are defined at ptr4336.netactuate.com.
NS records for this zone are defined at ptr4336.netactuate.com.
Question and response
Question
dig o2.ptr4336.netactuate.com. NS
Answer
The response has no answer records.
Authority
netactuate.com. 1800 SOA brad.ns.cloudflare.com. dns.cloudflare.com. 2397111840 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0