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conexion.bital.com.mx has two IP numbers. They are on different IP networks. bital.com.mx is a domain controlled by two nameservers at bital.com.mx themselves. They are on different IP networks. conexion.bital.com.mx is hosted on two servers in Mexico.

conexion.bital.com.mx
a records
 
+ 200.16.36.5 200.16.32.0/20 AS6495 -
+ --- -
+ 200.16.50.21 200.16.48.0/20 AS6495 -

bital.com.mx
ns-soa records
ns.bital.com.mx
+ 200.16.36.70 200.16.32.0/20 AS6495 -
+ --- -
+ --- ns.hsbc.com.mx
ns records
ns.bital.com.mx
+ 200.16.36.70 200.16.32.0/20 AS6495 -
+ --- -
+ --- ns.hsbc.com.mx
nssec.bital.com.mx
+ 200.16.50.2 200.16.48.0/20 AS6495 nssec.hsbc.com.mx
+ --- nssec.hsbc.com.mx
+ --- -
ip numbers of host
200.16.36.5
200.16.50.21
ptrs of ip numbers
conexion.bital.com.mx
ip numbers using ptr to this host
200.16.36.5
200.16.50.21