In this Recommendation, the expression "Administration" is used for conciseness to indicate both a telecommunication administration and a recognized operating agency.
ITU-T L.64-2007 history
2012ITU-T L.361-2012 ID tag requirements for infrastructure and network elements management
2007ITU-T L.64-2007 ID tag requirements for infrastructure and network elements management Study Group 6
ITU-T L.64-2007 ID tag requirements for infrastructure and network elements management Study Group 6 was changed to ITU-T L.361-2012 ID tag requirements for infrastructure and network elements management.