purge ip addresses based on ip range

I have a rhel6.10 dhcp server.
I'd like to know if there is a way to purge IPs based on range, such as 192.168.1.0/22. I have a couple locations I would like to purge, without wiping out the the dhcpd.leases and leases~ files.

I've been trying to find something on this, but I must not be using the correct search terminology.

Thanks!