IP Prefix-List Exact Match Behavior

When configuring IP prefix lists, issuing a command like:

ip prefix-list FILTERTHIS seq 5 deny 172.16.1.0/24

Matches the exact network and prefix length, acting similarly to an access list that denies that specific network. Although this is a valid configuration, it is a limited use of the power of prefix lists.

Note that prefix list syntax supports ge (greater than or equal) and le (less than or equal) options for defining a range of prefix lengths which makes it a much more powerful tool for matching complex network and subnet combinations. Prefix lists do not however have an exact match operator like eq since the above statement matches the network and prefix exactly.

https://networklessons.com/eigrp/how-to-configure-prefix-list-on-cisco-router