_netblocks.neti.ee has no CNAME records.
Question and response
Question
dig _netblocks.neti.ee. NS
Answer
The response has no answer records.
Authority
neti.ee. 300 SOA ns.elion.ee. hostmaster.telia.ee. 2026020201 3600 900 86400 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0