What steps must I take prior to donating a thousands-block?
Section 4.1 d) of the TBPAG outlines what steps the code holder must perform prior to donating a thousands-block: 4.1 d) “confirm, prior to donating the thousands-block to the industry inventory pool, that: 1) All unavailable TNs within contaminated thousands-blocks have been intra-service provider ported (ISPs); 2) The thousands block has been protected from further SP number assignment; 3) The associated NPA/NXX is currently available for call routing, is flagged as LNP capable in the LERG Routing Guide and the NPAC, and the NPA-NXX query triggers are applied in all switches and reflected in the appropriate network databases (e.g., STP routing tables); 4) The NXX-assigned switch is currently LNP-capable and will process terminating traffic appropriately; and 5) Interconnection facilities have been established between the NXX-assigned switch and other interconnecting networks. 6) The block identified for donation does not contain a test line number. If a block being returned or donate
