CPV code 64111000 designates Postal services related to newspapers and periodicals in the Common Procurement Vocabulary (CPV 2008), the EU classification used to describe the subject of public contracts.
64111000 is a leaf code — the most specific level of its branch — so it can be used directly as the main CPV code of a contract notice. If it does not quite fit, check the neighbouring codes under 64110000 (Postal services).