S10 (UPU standard)
The UPU S10 standard defines a system for assigning 13-character identifiers to items for the purpose of tracking and tracing them during shipping.
The identifiers consist of a two letter service indicator code, an eight digit number, a check-digit, and a two-letter ISO country code, the latter identifying the issuing postal administration.[1]
With increased liberalization and the possibility of multiple postal services operating in the same country, the use of country codes to designate the postal service is a problem. To solve this, each country has a designated postal service that controls all S10 identifiers from that country; any competing postal services will have to cooperate with the designated owner.
| Code | Interpretation[2] |
|---|---|
| AA-AZ | Letter post: recorded delivery, but neither registered nor insured |
| BA-BZ | for domestic, bilateral, multilateral use only |
| CA-CZ | Parcel post |
| DA-DZ | for domestic, bilateral, multilateral use only |
| EA-EZ | EMS |
| GA | for domestic, bilateral, multilateral use only |
| GD | for domestic, bilateral, multilateral use only |
| LA-LZ | Letter post: express / Exprès delivery |
| NA-NZ | for domestic, bilateral, multilateral use only |
| PA-PZ | for domestic, bilateral, multilateral use only |
| RA-RZ | Letter post: registered, but not insured delivery |
| UA-UZ | Letter post: items other than AA-AZ, EA-EZ, LA-LZ, RA-RZ, VA-VZ, subject to customs control, i.e. bearing a CN 22 or CN 23 |
| VA-VZ | Letter post: insured delivery |
| ZA-ZZ | for domestic, bilateral, multilateral use only |
The check-digit is calculated as follows :
Ignore the Service Indicator Code and Country Code Assign the weights 8, 6, 4, 2, 3, 5, 9, 7 to the 8 digits, from left to right Calculate S, the sum of each digit multiplied by its weight. For example, for the number 47312482, S = 4*8 + 7*6 + 3*4 + 1*2 + 2*3 + 4*5 + 8*9 + 2*7 = 200 Calculate the check digit, C, from C = 11 - (S mod 11) If C = 10, change to C = 0 If C = 11, change to C = 5 For the example 47312482 C = 11 - (200 mod 11) = 11 - 2 = 9.
See also
- Serial Shipping Container Code, a related standard.
References
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ http://www.upu.int, Service Indicator Codes
External links
- Draft of S10:
- The UPU service indicator code list, list 124
- Country codes, S31 issuer codes and S10 13 character identifiers for postal items, September 2, 2004
- Online validator for S10 tracking numbers
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