You can use your knowlege of the keys/column names to make the file an array of hashes or, if there can be constructed a 'primary key' from the data, a hash of hashes. Assuming that the 'id' is unique, it might serve. In any case, make a constant array of your column names and fill in a hash slice over that with the data.

Here is yet another way, making a hash of hashes on id, with the second level hashes constructed directly from a list,

my @keys = qw(
    id username domain address); # and so on
my %addressbook;
while (<>) {    # or whatever handle
    my @data = split /\t/;
    $addressbook{$data[0]} = { map {
        ($keys[$_] => $data[$_])
    } 1..$#keys };
}
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There are lots of ways to do this.

After Compline,
Zaxo