AddressDoctor checks and corrects postal addresses from all countries around the world. Our unique software compares addresses with a reference data base. The AddressDoctor reference database currently covers 246 countries and territories. Almost every country on the planet is included.
A complete list of all countries supported by AddressDoctor and the degree of coverage is available at
In 2010, AddressDoctor's reference database was comprehensively updated 560 times. Experts around the world keep it always up to date. When choosing our data sources, we use only the most reliable and official suppliers (for example national postal organizations).
The 
country list, as well as the interactive world map, show detailed information about the update frequency.
Chinese, Japanese, and Cyrillic – these are just a few of the foreign writing systems that AddressDoctor reliably masters. Addresses can be automatically transliterated from one system to another. The reference data also contains special characters, as well as locality and street names, in different languages.
Postal certifications are an absolute necessity if you plan to post bulk mail at discounted rates within specific countries, like the USA, Canada or Australia. AddressDoctor's Software Library has achieved the stringent address data cleansing and validation criteria of USPS and Canada Post and is therefore CASS, SERP and AMAS certified.
