42.189-202-251.bestelclientes.com.mx has no NS records.
NS records for this zone are defined at 189-202-251.bestelclientes.com.mx.
NS records for this zone are defined at 189-202-251.bestelclientes.com.mx.
Question and response
Question
dig 42.189-202-251.bestelclientes.com.mx. NS
Answer
The response has no answer records.
Authority
189-202-251.bestelclientes.com.mx. 900 SOA dns1.bestel.com.mx. nobody.bestel.com.mx. 2013060146 10800 3600 2419200 900
Additional
. 0 OPT ; payload 1220, xrcode 0, version 0, flags 0