It is an IMEI whose TAC corresponds to a brand and model of terminal equipment that has not been part of the homologation process before the Communications Regulation Commission, and cannot operate in the mobile networks of Colombia. The homologation request must be made by entering the link https://www.crcom.gov.co/es/pagina/tramite-homologacion-celulares in the option "Cómo homologar tu celular". This procedure will have no cost. The CRC will review the information sent by the customer and, within a maximum of 15 working days, the terminals that have been approved to the list of the CRC will be included.
If you have additional doubts about the status of your equipment, you can validate it on the website of the Communications Regulation Commission (CRC) or in the "Servicio móvil" menu in the "Equipo celular" section.