L606 5-Digit Scheme: Standard Mail, First-Class Mail, and Package Services Parcels

L606 lists the 5-digit scheme sort for Standard Mail machinable and irregular parcels (excluding ECR irregular parcels), First-Class Mail Presorted parcels, and Package Services machinable and nonmachinable parcels destined for multiple 5-digit ZIP Codes served by a single delivery unit.

 

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