Country, Region, and Territory Postal System Reliability
All postal systems are not created equally. The postal addresses of the world vary in
their reliability according to how well a regional postal system can maintain its postal
address database. DAV uses the databases maintained by these various postal systems to
verify order address information. Countries, regions, and territories are grouped into
five categories according to the reliability of their postal system databases.
If DAV cannot verify an address completely, or if the address cannot
be matched with a postal database entry, you cannot receive a successful response. If
the address is listed in a postal database, the service validates the accuracy of the
address provided by the customer.
Category I-A
These countries or regions have rigorous testing and a postal certification process that results in the largest amount and greatest accuracy of postal data.
Country or Region | Code |
|---|---|
Australia | AU |
Canada | CA |
United States Includes:
| US |
Category I-B
These countries or regions provide complete address data, including all street names
and all valid address ranges for the buildings on the streets. Although the postal
systems of these countries lack the rigor of the Category I-A postal systems, these
countries generally provide reasonably accurate and almost complete postal
information.
Country or Region | Code |
|---|---|
Netherlands | NL |
United Kingdom Includes:
| GB |
Category II
These countries or regions have fairly reliable postal systems and provide street names, city names, and postal codes for large and small cities. However, they provide incomplete ranges for the addresses of buildings. Therefore, you can often trust the validation results for the street name, city name, and postal code, but you cannot trust the validation of building addresses.>
Country or Region | Code |
|---|---|
Denmark Includes:
| DK |
France Includes:
| FR |
Germany | DE |
Switzerland Includes:
| CH |
Category III
The postal systems in these countries provide street names, city names, and postal codes for
large cities only and incomplete or no information for smaller cities. These postal
systems may also provide an extremely limited set of building address ranges. Therefore,
you can trust the validation results for city name, street name, and postal code for
larger cities. For smaller cities, you can trust validation results for city name and
postal code.
Country or Region | Code |
|---|---|
Austria | AT |
Belgium | BE |
Finland | FI |
Italy Includes:
| IT |
Luxembourg | LU |
New Zealand | NZ |
Norway | NO |
Poland | PL |
Portugal | PT |
South Africa | ZA |
Spain | ES |
Sweden | SE |
Category IV
In these countries or regions, the postal systems are highly variable. Most countries or regions
provide a list of cities and postal codes. Some cities and postal codes might not be
present in the country’s or region’s postal database.
Country or Region | Code |
|---|---|
Afghanistan | AF |
Albania | AL |
Algeria | DZ |
Andorra | AD |
Angola | AO |
Anguilla (UK) | AI |
Antigua and Barbuda | AG |
Argentina | AR |
Armenia | AM |
Aruba | AW |
Azerbaijan | AZ |
Bahamas | BS |
Bahrain | BH |
Bangladesh | BD |
Barbados | BB |
Belarus | BY |
Belize | BZ |
Benin | BJ |
Bermuda (UK) | BM |
Bhutan | BT |
Bolivia | BO |
Bosnia and Herzegovina | BA |
Botswana | BW |
Brazil | BR |
British Virgin Islands (UK) | VG |
Brunei | BN |
Bulgaria | BG |
Burkina Faso | BF |
Burundi | BI |
Cambodia | KH |
Cameroon | CM |
Cape Verde | CV |
Cayman Islands (UK) | KY |
Central African Republic | CF |
Chad | TD |
Chile | CL |
Mainland China | CM |
Christmas Island (AU) | CX |
Cocos (Keeling) Islands (AU) | CC |
Columbia | CO |
Comoros | KM |
Congo, Democratic Republic of the | CD |
Congo | CG |
Cook Islands (NZ) | CK |
Costa Rica | CR |
Côte d’Ivoire | CI |
Croatia | HR |
Cuba | CU |
Cyprus | CY |
Czech Republic | CZ |
Djibouti | DJ |
Dominica | DM |
Dominican Republic | DO |
Ecuador | EC |
Egypt | EG |
El Salvador | SV |
Equatorial Guinea | GQ |
Eritrea | ER |
Estonia | EE |
Ethiopia | ET |
Falkland Islands (UK) | FK |
Fiji | FJ |
Gabon | GA |
Gambia | GM |
Georgia | GE |
Ghana | GH |
Gibraltar (UK) | GI |
Greece | GR |
Greenland (DK) | GL |
Grenada | GD |
Guatemala | GT |
Guinea | GN |
Guinea-Bissau | GW |
Guyana | GY |
Haiti | HT |
Honduras | HN |
Hong Kong | HK |
Hungary | HU |
Iceland | IS |
India | IN |
Indonesia | ID |
Iran | IR |
Iraq | IQ |
Israel | IL |
Jamaica | JM |
Japan | JP |
Jordan | JO |
Kazakhstan | KZ |
Kenya | KE |
Kiribati | KI |
Korea, Democratic People’s Republic (North) | KP |
Korea, Republic of (South) | KR |
Kosovo | KV |
Kuwait | KW |
Kyrgyzstan | KG |
Laos | LA |
Latvia | LV |
Lebanon | LB |
Lesotho | LS |
Liberia | LR |
Lithuania | LT |
Libya | LY |
Macau | MO |
Macedonia | MK |
Madagascar | MG |
Malawi | MW |
Malaysia | MY |
Maldives | MV |
Mali | ML |
Malta | MT |
Mauritania | MR |
Mauritius | MU |
Mexico | MX |
Moldova | MD |
Mongolia | MN |
Montenegro | ME |
Montserrat (UK) | MS |
Morocco | MA |
Mozambique | MZ |
Myanmar | MM |
Namibia | NA |
Nauru | NR |
Nepal | NP |
Netherlands Antilles (NL) | AN |
Nicaragua | NI |
Niger | NE |
Nigeria | NG |
Niue | NU |
Norfolk Island (AU) | NF |
Oman | OM |
Pakistan | PK |
Panama | PA |
Papua New Guinea | PG |
Paraguay | PY |
Peru | PE |
Philippines | PH |
Pitcairn Islands (UK) | PN |
Qatar | QA |
Romania | RO |
Russia | RU |
Rwanda | RW |
Saint Helena (UK) | SH |
Saint Kitts and Nevis | KN |
Saint Lucia | LC |
Saint Vincent and the Grenadines | VC |
Samoa | WS |
Sao Tome and Principe | ST |
Saudi Arabia | SA |
Senegal | SN |
Serbia | RS |
Seychelles | SC |
Sierra Leone | SL |
Singapore | SG |
Slovakia | SK |
Slovenia | SI |
Solomon Islands | SB |
Somalia | SO |
South Georgia and the South Sandwich Islands (UK) | GS |
Sri Lanka | LK |
Sudan | SD |
Suriname | SR |
Swaziland | SZ |
Syria | SY |
Taiwan | TW |
Tajikistan | TJ |
Tanzania | TZ |
Thailand | TH |
Timor-Leste | TL |
Togo | TG |
Tokelau | TK |
Tonga | TO |
Trinidad and Tobago | TT |
Tunisia | TN |
Turkey | TR |
Turkmenistan | TM |
Turks and Caicos Islands (UK) | TC |
Tuvalu | TV |
Uganda | UG |
Ukraine | UA |
United Arab Emirates | AE |
Uruguay | UY |
Uzbekistan | UZ |
Vanuatu | VU |
Venezuela | VE |
Vietnam | VN |
Western Sahara | EH |
Yemen | YE |
Zambia | ZM |
Zimbabwe | ZW |