I'd like to use a hash like this: 
my $rboc    = "SA";
my $telco   = "0009";
$HoA{$rboc}{$telco} ++;

[download]
or perhaps $HoA{$rboc,$telco} ++; I've never seen this in any literature but it seems to work OK...comments?

In reply to multi-dimensional hash by fionbarr

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