perl -nle "$x++ if 0==$.%4;$a[$x].=$_}{for(@a){next unless/Range/;s/ST/ST,/;/\s(\d+)(\w) - \d+(\w)\W/;$n=$1;for $l(qq($2)..qq($3)){print s/\(.*\)/$n$l, /r}}" add-data.txt

432 10TH ST, APT 2A, BROOKLYN NY 10598-6601
432 10TH ST, APT 2B, BROOKLYN NY 10598-6601
432 10TH ST, APT 3A, BROOKLYN NY 10598-6601
432 10TH ST, APT 3B, BROOKLYN NY 10598-6601
432 10TH ST, APT 4A, BROOKLYN NY 10598-6605
432 10TH ST, APT 4B, BROOKLYN NY 10598-6605
432 10TH ST, APT 5A, BROOKLYN NY 10598-6605
432 10TH ST, APT 5B, BROOKLYN NY 10598-6605
432 10TH ST, APT 5C, BROOKLYN NY 10598-6605
432 10TH ST, APT 5D, BROOKLYN NY 10598-6605