La Poste SNA possesses the most up-to-date and comprehensive database in France. It contains more than 18 million elements of address data : road names, thoroughfare numbers, postcodes, names of localities, major towns and cities...

The geographical-postal elements of an address evolve constantly. So for example, every year :
  30 000 thoroughfares are newly created or undergo a modification to their name,
  200 000 new distribution points are created.

The SNA offers a complete range of geographical reference files which enable you to optimise the quality of the wording used for your addresses.

These reference files are used :
  online, as addresses are keyed in : they assist and even speed up operators’ work, whilst reducing the level of fundamental errors,
  or subsequently, during computerised processing procedures for the standardisation of postal addresses (RSPV).