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USPS Intelligent Mail Barcode (IMb)

The camera app does not scan this. The Zebra app does not scan this.

The Intelligent Mail barcode is the row of short and tall bars on US business mail. Its 65 four-state bars carry both a tracking code and the delivery-point ZIP code, combining what POSTNET and PLANET did separately.

Also called IMb, Intelligent Mail, OneCode, USPS 4-State Customer Barcode (4CB).

In this family

Specifications

Standard	USPS-B-3200 / DMM 204 (USPS)
Character set	Numeric
Capacity	31 digits in 65 bars: 20-digit tracking code + 0/5/9/11-digit routing code
Error correction	Built-in error detection/correction (no separate correction digit needed per DMM)
Dimension	postal
Origin	USPS; required for automation prices from 27/28 January 2013, replacing POSTNET and PLANET

Where it is used

US letters and flats: sorting, tracking, automation prices (Full-Service)

People use it for uS letters and flats: sorting, tracking, automation prices (Full-Service).

The camera app does not scan this. The Zebra app does not scan this.

Example

0123456709498765432101234567891

Scan and create

Create this code

Create this code opens the barcode generator with this symbology and the sample text filled in.

The camera app does not scan this.

The Zebra app does not scan this.

Related codes

Questions

How do I read an Intelligent Mail barcode?

The Intelligent Mail barcode is the row of short and tall bars on US business mail. The cited standard is USPS-B-3200 / DMM 204 (USPS). The camera app does not scan this. The Zebra app does not scan this.

What is the difference between IMb and POSTNET?

The Intelligent Mail barcode is the row of short and tall bars on US business mail. Character set: Numeric. The camera app does not scan this. The Zebra app does not scan this.

Can I track a letter with its IMb?