Apex CIDR Search

If you create a Site and the name of your subnet is the CIDR/IP_Address or vice versa, then you can simply type in subnet CIDR and your filter will work. 

Example:

Site = Webex

Subnet names = CIDR 1st Floor 10.10.0.0/16

Subnet CIDR = 10.10.0.0/16

In Apex, your search filter will be: subnet 'c and it will auto populate (version 18.20.2 and above)