go
www.chilesat.net has one IP number , but the reverse is mapu.telmexchile.cl. telmex.cl, www.rdc.cl, www.telmex.cl, www.telmexchile.cl and mapu.telmexchile.cl point to the same IP. chilesat.net is a domain controlled by three nameservers. Two of them are on the same IP network. Incoming mail for chilesat.net is handled by one mailserver at chilesat.net themselves. chilesat.net has one IP number , but no corresponding reverse pointer. www.chilesat.net is hosted on a server in Chile.

www.chilesat.net
a records
 
+ 200.27.9.210 200.27.0.0/19 AS6429 mapu.telmexchile.cl
+ --- mapu.telmexchile.cl

chilesat.net
a records
 
+ 200.31.43.33 200.31.32.0/19 AS6429 lemuy.chilesat.net
+ --- lemuy.chilesat.net
+ --- www.chilesat.net
ns-soa records
lemuy.chilesat.net
+ 200.31.43.33 200.31.32.0/19 AS6429 -
+ --- -
+ --- www.chilesat.net
ns records
ns.telmexchile.cl
+ 200.27.2.2 200.27.0.0/19 AS6429 -
+ --- -
ancud.chilepac.com
+ 200.31.43.34 200.31.32.0/19 AS6429 -
lemuy.chilesat.net
+ 200.31.43.33 200.31.32.0/19 AS6429 -
+ --- www.chilesat.net
mx records
mx.chilesat.net
+ 200.27.1.100 200.27.0.0/19 AS6429  
+ ---  
ip numbers of host
200.27.9.210
ptrs of ip numbers
mapu.telmexchile.cl
ip numbers using ptr to this host
200.31.43.33
hostnames sharing ip with a-records
mapu.telmexchile.cl
telmex.cl
www.rdc.cl
www.telmex.cl
www.telmexchile.cl