use strict;
use warnings;

use 5.010;

my %lanes = (
   1 => [ 200900 .. 202543 ],
   2 => [ 202544 .. 204187 ],
   3 => [ 204188 .. 205831 ],
   4 => [ 205832 .. 207475 ],
   5 => [ 207476 .. 210119 ],
   6 => [ 210120 .. 211763 ],
   7 => [ 211764 .. 213407 ],
   8 => [ 213408 .. 215051 ],
   );

my %lookup =
   map { local $" = q{|}; ( qr{^(?:@{ $lanes{ $_ } })$}, $_ ) }
   keys %lanes;

my @toTest = ( 175924, 203786, 208293 );

OUTER:
foreach my $test ( @toTest )
{
    INNER:
    foreach my $rxCheck ( keys %lookup )
    {
        if ( $test =~ $rxCheck )
        {
            say qq{$test -- $lookup{ $rxCheck }};
            next OUTER;
        }
    }
    say qq{$test -- No match!};
}