I'd use bind_param just because it sometimes gives you better error messages on what's wrong...

$phone_insert->bind_param(1, $row->{'cust_id'});
$phone_insert->bind_param(2, $adtID);
$phone_insert->bind_param(3, $phoneNumberTypes->{'Day'});
$phone_insert->bind_param(4, $row->{'cust_phac'});
$phone_insert->bind_param(5, $row->{'cust_phpx'});
$phone_insert->bind_param(6, $row->{'cust_phsx'});
$phone_insert->bind_param(1, $row->{'cust_phex'});

$phone_insert->execute or die "$dbh->errstr\n";
[download]

Where $dbh is your database handle.

It looks to me like everything is being inserted as a number, thus it doesn't put 's around the values and therefore it's balking at the space in the 2 89 value.

HTH
'Fect