A Postal Code is a unique identifier used in mail sorting and delivery systems worldwide. Known as ZIP codes in the United States and similar terms elsewhere, these codes streamline postal operations and efficiency.
Detailed exploration of postal services, including history, types, key events, operations, and more.
The enhanced nine-digit ZIP code offering more precise mail delivery, streamlining postal services, and improving delivery efficiency.
First-Class Mail is a class of mail service that receives quick handling and delivery, free forwarding, and is not subject to opening for postal inspection. Letters, postcards, bills, and personal correspondence must be sent by first-class mail.
ZIP + 4 codes add four additional digits to the standard five-digit ZIP codes, improving sorting and delivery efficiency for business mailers.
