To ensure the efficient allocation of telephone numbers.

Directs the Federal Communications Commission (FCC), by June 30, 2000, to develop and implement a plan for the efficient allocation of telephone numbers.

Directs the FCC, until it has fully implemented such plan and at the request of a State commission, to delegate to such commission its jurisdiction over telephone numbering with respect to States to the extent that such delegation will permit the State commission to implement measures to conserve telephone numbers.