ns3.citytel.net has no NS records.
NS records for this zone are defined at citytel.net.
NS records for this zone are defined at citytel.net.
Question and response
Question
dig ns3.citytel.net. NS
Answer
The response has no answer records.
Authority
citytel.net. 300 SOA ns3.citytel.net. hostmaster.citytel.net. 2026030201 3600 1200 604800 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0