For recommendations about how to correctly write addresses for UPU member countries, visit https://www.upu.int/.
These countries have been updated in the UPU for the First Quarter 2025 database:
| Country Name | ISO 3116-1
Alpha-2 |
ISO 3116-1
Alpha-3 |
Changes |
|---|---|---|---|
| Afghanistan | AF | AFG | New: post office information added. |
| Åland Islands | AX | ALA | |
| American Samoa | AS | ASM | |
| Australia | AU | AUS | Standard data set, (Australia PL), (PCF) |
| Austria | AT | AUT | |
| Saint Barthélemy | BL | BLM | |
| Belarus | BY | BLR | |
| Switzerland | CH | CHE | |
| Chile | CL | CHL | |
| Cyprus | CY | CYP | |
| Czech Republic | CZ | CZE | |
| Denmark | DK | DNK | |
| Estonia | EE | EST | |
| Finland | FI | FIN | |
| Faröe Islands | FO | FRO | |
| United Kingdom | GB | GBR | |
| Guadeloupe | GP | GLP | |
| Greenland | GL | GRL | |
| French Guiana | GF | GUF | |
| Guam | GU | GUM | |
| Croatia | HR | HRV | |
| Hungary | HU | HUN | |
| Indonesia | ID | IDN | New: synonyms of localities added. |
| Iceland | IS | ISL | |
| Liechtenstein | LI | LIE | |
| Sri Lanka | LK | LKA | |
| Lithuania | LT | LTU | |
| Luxembourg | LU | LUX | |
| Latvia | LV | LVA | |
| Saint Martin (FR) | MF | MAF | |
| Mexico | MX | MEX | |
| N. Mariana Islands | MP | MNP | |
| Martinique | MQ | MTQ | |
| Malaysia | MY | MYS | |
| Mayotte | YT | MYT | |
| New Caledonia | NC | NCL | |
| Netherlands | NL | NLD | Standard data set, (Cendris Postcodetabel Series Level) |
| Norway | NO | NOR | Standard data set, (Adresseregister), (Gateregister) |
| New Zealand | NZ | NZL | Standard data set, (PAF) |
| Poland | PL | POL | Standard data set, (Polish Address Directory) |
| Puerto Rico | PR | PRI | |
| French Polynesia | PF | PYF | |
| Réunion | RE | REU | |
| Romania | RO | ROU | |
| Russian Federation | RU | RUS | |
| Saudi Arabia | SA | SAU | New: street, district and building information added, in both Arabic and Latin. |
| Svalbard and Jan Mayen | SJ | SJM | |
| Saint Pierre and Miquelon | PM | SPM | |
| Serbia | RS | SRB | |
| Slovenia | SI | SVN | |
| Ukraine | UA | UKR | |
| Uruguay | UY | URY | |
| Virgin Islands, U.S. | VI | VIR | |
| South Africa | ZA | ZAF |