"..I want to access each and every element of the hash, How can I do that?.."
You can do like so:

use warnings;
use strict;

my %temp = (
    "0x55555555" => {
        "0x55555555" => [ [ "0xAAAAAAAA", "0x9" ], ],
        "0xAAAAAAAA" => [ [ "0xAAAAAAAA", "0x8" ], ],
    },
    "0xAAAAAAAA" => {
        "0x55555555" => [ [ "0xFFFFFFFF", "0x8" ], ],
        "0xAAAAAAAA" => [ [ "0x55555554", "0x3" ], ],
    },
);

foreach my $item ( keys %temp ) {
    print "$item: \n";    # print keys
    my $hash = $temp{$item};
    foreach my $key2 ( keys %$hash ) {
        print "\t", $key2, "\n\t";    # print keys
        my $array = $hash->{$key2};
        print "\t", join "\t", map { @$_ } @$array;    # print all you
+r values
        print "\n";
    }
}
[download]

0xAAAAAAAA: 
    0xAAAAAAAA
        0x55555554    0x3
    0x55555555
        0xFFFFFFFF    0x8
0x55555555: 
    0xAAAAAAAA
        0xAAAAAAAA    0x8
    0x55555555
        0xAAAAAAAA    0x9
[download]