The utilities regulating agency says it is beginning a push with the help of other government entities to crackdown on what is being called informal transportation.
The regulator is the Autoridad Reguladora de Servicios Públicos which said Friday that the pirate taxis are even using radios just like licensed taxi companies.
The Autoridad called on the Superintendencia de Telcomuniciones to provide data on who is licensed to use the radio spectrum.
Taxi firms and other legitimate transport companies are signing up for spectrum allocations now, and a new law provides heavy penalties for misuse.
The Autoridad said it was working with the Policía de Tránsito to halt pirate taxis because they are a danger to the public. Licensed taxis and those companies providing door-to-door service at least have to have insurance.