Colombia
In Colombia, each person is issued a basic ID card during childhood (Tarjeta de Identidad). The ID number includes the date of birth and a short serial number. Upon reaching the age of 18, every citizen is reissued a citizenship card (Cédula de Ciudadanía), and the ID number on it is used and required in all instances, public and private.
Every Colombian national traveling abroad must be issued a passport document (which includes a specific passport number related to the national identification number); in this manner foreign governments can track Colombian nationals with their respective consulates.
There is as well a number assigned to companies: NIT. Tributary Identification Number (for its Spanish acronym). Among other things, it is used for tax reports.
As of 2003 created the NUIP (Número Único de Identificación Personal), starting the numbering per billion (1,000,000,000)
Read more about this topic: National Identification Number