[GENERAL] appropriate column for storing ipv4 address

I have to store/search some IP data in Postgres 9.6 and am second-guessing my storage options.

Would anyone mind giving this a quick look for me?

Right now I have two tables, and am just using cidr for both:

    create table tracked_ip_address (
        id SERIAL primary key,
        ip_address CIDR not null
    );

    create table tracked_ip_block (
        id SERIAL primary key,
        block_cidr CIDR not null,
        ownserhip_data TEXT
    );

The types of searching I'm doing:

    1. on tracked_ip_address, I'll search for neighboring ips.
        e.g.
         select * from tracked_ip_address where ip_address << '192.168'::CIDR;
         select * from tracked_ip_address where ip_address << '192.168.1'::CIDR;

    2. on tracked_ip_block, i search/join against the tracked_ip_address to show known ips in a block, or a known block
foran ip. 

i used cidr instead of inet for the ip_address because it saved me a cast on joins and appears to work the same.  was
thatthe right move?  is there a better option? 

thanks in advance.

/ jonathan