This document is to be used for forecasting the months to exhaust of the current toll-free NPAs. The months to exhaust will, in turn, trigger an announcement to the industry of the relief NPA and the date it will be available. All references to number(s) or NPA(s) in this document are toll-free number(s) or NPA(s).
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ATIS 0300057(1998-07)
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Toll Free Resource Exhaust Relief Planning guidelines
The Alliance for Telecommunications Industry Solutions , 07/01/1998
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