ASSO.EU.ORG has no NS records.
NS records for this zone are defined at EU.ORG.
NS records for this zone are defined at EU.ORG.
Question and response
Question
dig ASSO.EU.ORG. NS
Answer
The response has no answer records.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0