cat /proc/net/fib_trie

cat /proc/net/fib_trie | grep "|--"   | egrep -v "0.0.0.0| 127."
       |-- 193.136.1.0
       |-- 193.136.1.2
    |-- 193.136.1.255
       |-- 193.136.1.0
       |-- 193.136.1.2
    |-- 193.136.1.255

$ ip addr | awk '/^[0-9]+/ { currentinterface=$2 } $1 == "inet" { split( $2, foo, "/" ); print currentinterface ,foo[1] }'
lo: 127.0.0.1
eth0: 10.28.9.29