dns40.telus.ca has no NS records.
NS records for this zone are defined at telus.ca.
NS records for this zone are defined at telus.ca.
Question and response
Question
dig dns40.telus.ca. NS
Answer
The response has no answer records.
Authority
telus.ca. 3600 SOA dns48.telus.com. dnsadmin2.telus.com. 2019276685 900 90 3600000 3600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0