206.138.123.77.colo.static.dcvolia.com has no NS records.
NS records for this zone are defined at colo.static.dcvolia.com.
NS records for this zone are defined at colo.static.dcvolia.com.
Question and response
Question
dig 206.138.123.77.colo.static.dcvolia.com. NS
Answer
The response has no answer records.
Authority
static.dcvolia.com. 3600 NS ns0.dc.volia.com.
static.dcvolia.com. 3600 NS ns5.dc.volia.com.
Additional
ns0.dc.volia.com. 3600 A 82.144.220.7
ns5.dc.volia.com. 3600 A 77.120.112.133
. 0 OPT ; payload 1680, xrcode 0, version 0, flags 0