go
con1.nipr.mil point to 199.252.157.234.

con1.nipr.mil
a records
 
+ 199.252.157.234 199.252.157.0/24 AS5927 -
+ --- -
ip numbers of host
199.252.157.234
ptrs of ip numbers
con1.nipr.mil
hostnames sharing ip with a-records
con1.nipr.mil
domains using this as nameserver
mil
nic.mil
nima.mil
nipr.mil