71703ECA-C8E7-11EF-9200-E02D8A098F4C._domainkey.ntc.net.pk AXFR zone transfer

Not an apex domain The domain 71703ECA-C8E7-11EF-9200-E02D8A098F4C._domainkey.ntc.net.pk is not the root of its zone.
Instead, try zone transfer on ntc.net.pk .