EMS Service Type
| Prefix Type | |
| Type | Description |
| E | General EMS Express Service (International Express) |
| "E" stands for Express, meaning it is faster than regular mail or parcels. | |
| L | Trackable General Mail (Semi-registered) |
| Delivered to the mailbox by default; if too large, delivered to the door without face-to-face confirmation. | |
| R | International Registered Mail |
| Registered mail, delivered face-to-face in principle. | |
| C | International Parcel |
| Used for shipping heavy items. | |
| U | Untrackable General Mail |
| Ordinary mail unrelated to customs/tracking, takes longer delivery time. | |
| V, A and Others | Custom Mail Service for Specific Countries |
| May not be trackable via domestic post office. | |
UPU Code 115 - Mail category codes
| UPU Code 115 - Mail category codes | |
| Class | Description |
| A | Airmail or Priority mail |
|
Airmail is a mail system that distributes letters and parcels using aircraft. Priority mail is a customized postal service allowing faster delivery at higher cost. |
|
| B | S.A.L. mail / Non-priority mail |
|
S.A.L. stands for 'Surface Air Lifted', meaning a service faster than surface but cheaper than airmail. Non-priority mail is general mail without priority assignment, slower but cheaper than Priority mail. |
|
| C | Surface mail / Non-priority mail |
|
Surface mail sends letters or parcels via land, sea, or rail. Non-priority mail is general mail without priority assignment, slower but cheaper than Priority mail. |
|
| D | Priority mail sent by surface transportation (optional code) |
|
Priority mail sending via Surface Mail (land, sea, or rail). Provides faster processing and delivery than general surface mail. |
|
UPU Code 117 - Mail sub-class codes
| UPU Code 117 - Mail sub-class codes | |
| Class | Description |
| CA | PARCELS - A DECOUVERT |
| CB | PARCELS - RETURNED |
| CC | PARCELS - E-COMMERCE |
| CD | PARCELS - DIRECT ACCESS |
| CE | PARCELS - EPG |
| CF | PARCELS - CONSIGNMENT SERVICE |
| CN | PARCELS - ORDINARY |
| CR | PARCELS - MERCHANDISE RETURNED |
| CT | PARCELS - EMPTY RECEPTACLES |
| CU | PARCELS - RESERVED FOR BILATERALLY AGREED USAGE |
| CV | PARCELS - INSURED |
| CX | PARCELS - RESERVED FOR MULTILATERAL USAGE WITHIN DESIGNATED PROJECTS |
| CY | PARCELS - RESERVED FOR MULTILATERAL USAGE WITHIN DESIGNATED PROJECTS |
| CZ | PARCELS - RESERVED FOR BILATERALLY AGREED USAGE |
| EA | EMS - A DECOUVERT |
| ED | EMS - DOCUMENTS |
| EG | EMS - TIME-CERTAIN - DOCUMENTS |
| EH | EMS - TIME-CERTAIN - MERCHANDISE |
| EI | EMS - TIME-CERTAIN - MIXED |
| EM | EMS - MERCHANDISE |
| EN | EMS - MIXED |
| ER | EMS - MERCHANDISE RETURNED |
| ET | EMS - EMPTY RECEPTACLES |
| EU | EMS - RESERVED FOR BILATERALLY AGREED USAGE |
| EY | EMS - RESERVED FOR MULTILATERAL USAGE WITHIN DESIGNATED PROJECTS |
| EZ | EMS - RESERVED FOR BILATERALLY AGREED USAGE |
| TT | EMPTY RECEPTACLES - MIXED |
| TZ | EMPTY RECEPTACLES - RESERVED FOR BILATERALLY AGREED USAGE |
| UA | LETTERS - AO/SMALL PACKETS (GOODS) |
| UB | LETTERS - BULK |
| UC | LETTERS - HARMONISED DIRECT MAIL |
| UD | LETTERS - OUTSIDE OF TERMINAL DUES SYSTEM |
| UE | LETTERS - A DECOUVERT |
| UF | LETTERS - LC DIRECT ACCESS |
| UG | LETTERS - AO DIRECT ACCESS |
| UH | LETTERS - LC/AO DIRECT ACCESS |
| UI | LETTERS - IBRS |
| UL | LETTERS - LC AND BULKY LETTERS (DOCUMENTS) |
| UM | LETTERS - M BAGS |
| UN | LETTERS - LC/AO |
| UP | LETTERS - POSTCARDS |
| UR | LETTERS - REGISTERED |
| UT | LETTERS - EMPTY RECEPTACLES |
| UU | LETTERS - RESERVED FOR BILATERALLY AGREED USAGE |
| UV | LETTERS - RETURNED UNDELIVERABLE ITEMS SUBJECT TO REMUNERATION |
| UX | LETTERS - TRACKED DELIVERY |
| UY | LETTERS - RESERVED FOR MULTILATERAL USAGE WITHIN DESIGNATED PROJECTS |
| UZ | LETTERS - RESERVED FOR BILATERALLY AGREED USAGE |
