Tracking Number Format

Article-number identification

India Post Tracking Number Formats Explained

Learn how to recognise a postal article number, avoid common typing errors and distinguish tracking identifiers from order, application and transaction references.

Track an article

The common 13-character structure

Many internationally standardised postal article identifiers contain two opening letters, nine digits and a two-letter country code. Articles originating in India commonly end in IN. The opening letters can help postal systems identify the product or handling category, but the booking receipt remains the best source for the exact service.

Illustrative structure: AA123456789IN. Do not use this example as a real tracking number.

Break the number into three parts

Opening letters
Service or article-category prefix used by postal systems.
Nine digits
The numeric portion assigned to the article.
Country code
Two closing letters identifying the issuing postal administration.
Complete identifier
All characters must remain in the original order.

Frequent entry mistakes

  • Entering an online-store order number instead of the postal number.
  • Leaving spaces or adding a hyphen copied from a formatted message.
  • Confusing zero with O, one with I, or five with S.
  • Omitting the two closing country-code letters.
  • Using a passport application, complaint or money-order reference.

Copy from the receipt when possible, then visually compare the first two and final two letters.

Different references serve different purposes

An article number follows a physical postal item. An order number belongs to a seller, an application number belongs to the issuing authority, and a complaint number identifies a support case. These references are not interchangeable. Ask the sender which identifier was assigned by India Post if the distinction is unclear.

What to do with an invalid number

  1. Count the characters and remove spaces.
  2. Recheck every letter and digit against the source.
  3. Confirm the article was actually handed to India Post.
  4. Allow time for the first electronic event after booking.
  5. Use the service-specific guide from our India Post services directory.

Number-format FAQs

Do all India Post services use the same format?

No. Many postal articles use the familiar 13-character structure, while some transactions or business services can use other references.

Can two articles share one tracking number?

Separate physical articles should normally have separate identifiers. Multi-parcel orders may therefore produce multiple numbers.

Does a valid-looking number guarantee a real booking?

No. A string can match the visual format without corresponding to an accepted article. Confirm it through official tracking and the booking receipt.

Verify the service on the receipt

This page explains identifier patterns but does not issue or validate postal numbers. Use the official India Post website for authoritative tracking.

Tracking number format: quick recap

The tracking number format helps you verify an article number before tracking it. Once you recognise the tracking number format, enter it on the official India Post website: https://www.indiapost.gov.in/

Tracking Number Format by Service

The tracking number format is the same 13-character UPU structure across services, but the first two letters hint at the service: Speed Post numbers typically start with E, Registered Post with R, and EMS international articles with E as well. The nine digits in the middle are the serial, and the final IN confirms India as the origin country. A number that is not 13 characters, or does not end in IN, is either incomplete or not an India Post article number.

Where to Find Your Tracking Number

Your tracking number is printed on the booking receipt given at the post office counter — look for the barcode with the 13-character code beneath it. For Speed Post booked at franchisees, the number appears on the franchise receipt in the same format. If you booked through the India Post website, the tracking number is in the confirmation email and in your account’s booking history.