Summary - E.190 (02/2025) - Principles and responsibilities for the allocation, reservation, assignment, reclamation and management of international telecommunication numbering, naming, addressing and identification (NNAI) resources

Recommendation ITU-T E.190 contains the principles and responsibilities used in the allocation, assignment, reclamation and management of international telecommunication numbering, naming addressing and identification resources, e.g., Recommendations ITU-T E.164, ITU-T E.118.1, ITU-T E.218 and ITU-T E.212, under the auspices of the appropriate ITU-T study group.