ECL lays down in its article 17 that ICP-ANACOM is charged with "managing the National Numbering Plan according to the principles of transparency, efficiency, equality and non-discrimination, including the establishment of conditions for the allocation and use of national numbering resources".
Under article 36 of ECL, the use of numbers depends on the granting of rights of use, which according to article 38 of ECL, may be transferred under terms and conditions to be established by ICP-ANACOM. Such terms and conditions must provide for mechanisms intended to safeguard, in particular, the effective and efficient use of numbers and rights of users.
