Need some help with my custom bash code

Hey,

The code below checks with the file called ips.info and lists the IPs for a reversedns DNS entry.
It works if all the IPs are from the same subnet but if the Main IP is from a different subnet it just misses out the Main IP.

Quant=0
for Ip in $Ips
do
  echo "$Reverso$Quant   IN   A   $Ip" >> $ArqNamed 
  Quant=`expr $Quant + 1`
done
echo " " >> $ArqNamed

if [ $IpsQuant -gt 8 ]
then
sed -i "/$Reverso\0/d" $ArqNamed
fi

Code (markup):

For some reason it's missing out the Main IP from that file for example if your IPs were like this:

67.21.233.89
173.214.162.168
173.214.162.169
173.214.162.170
173.214.162.171
173.214.162.172

The code above misses out this IP 67.21.233.89

How can i fix this.

Thanks In Advance,
Chris