[18Googol2]

pool {
        allow unknown-clients;
        deny known-clients;
        range 192.168.0.101 192.168.0.143;
        range 192.168.0.145 192.168.0.154;
        range 192.168.0.156 192.168.0.199;
       }

Now stop and start dhcpd again:

#killall dhcpd && dhcpd