Step 2 mailbox numbers

You're referring to the unique numbers assigned to mailboxes in the United States Postal Service's (USPS) Step 2 mail sorting system!

In the USPS's Step 2 mail sorting system, mailboxes are assigned a unique number, known as a "Mailbox Number" or "MBox Number." This number is used to identify the specific mailbox and facilitate efficient mail sorting and delivery.

Here's how it works:

  1. The USPS assigns a unique Mailbox Number to each mailbox in a specific geographic area, such as a city, town, or rural route.
  2. The Mailbox Number is typically a combination of letters and numbers, and it's usually printed on a sticker or label on the mailbox.
  3. When mail is sorted and processed at a USPS facility, the Mailbox Number is used to direct the mail to the correct mailbox.

Mailbox Numbers typically follow a specific format, such as:

For example, a Mailbox Number might look like this: 123-4567.

The USPS uses Mailbox Numbers to ensure that mail is delivered to the correct address and mailbox. If you're having trouble finding your Mailbox Number, you can contact your local post office or check your mailbox for the assigned number.