If my ID card has a numerical quota associated with the sex assigned to me at birth, is it possible to change the number?

Yes, in the case of ID cards issued before March 2000, whose number is associated with the sex assigned at birth, the person can request a change of numerical quota to be assigned a new 10-digit number (Unique Personal Identification Number - NUIP). For more information, please consult the following link https://www.registraduria.gov.co/Asignacion-de-un-nuevo-numero-de-cedula-por-cambio-de-sexo.html