I'm still going through some old TELECOM Digest archives. During the flurry of NPA splits and overlays in the late 90's I see references to the "Numbering Plan Administrator". Who do Numbering Plan Administrators work for? The state PUC? A telecom consortium? The company that administers the NANP?
It just seemed, to me, like an odd title. Certain this isn't a full-time job.