About track numbers UPU

...or what is the track number

According to the regulations UPU track number (or alphanumeric number bar code identifier postal) consists of 2 letters, 9 numbers (unique number) and two letters of the standard ISO 3166-1 alpha-2 pointing to the page the sender. Please note that the code consists of 8 unique digits + 1 (ninth). The last digit serves as verification code (calculated from the number of departure).

Let's look at the example code shown in the figure.
track numbers

First letter serves as an indicator of the type of origin.
Consider the most common options:

  • «C» — ordinary package (more than 2 kg)
  • «R» — the registered letter (less than 2 kg)
  • «L» — ordinary (express) mail, tracks starting with this letter are not tracked
  • «E» — rapid departure (EMS), the second letter is an ordinal
  • «V» — insured letter
  • «А» — mail is not monitored and is not insured
Track numbers that begin on LJ or LC sent USPS First Class Mail / USPS Priority Flat rate Envelope and track them impossible.

The second letter was used to indicate the type of dispatch, for example: by air, sea, w / d, or as an ordinary letter.

The last two letters as stated above are used to identify the sender of the country.

Commercial carriers and private companies do not apply the international standard UPU.
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