Per Section 5.1.7 of the ATIS-0300119, Thousands-Block (NPA-NXX-X) & Central Office Code (NPA-NXX) Administration Guidelines (TBCOCAG), the standard Thousands-Block effective date is 31 calendar days from date of application, however, SPs must allow at least two calendar days beyond the effective date prior to activating TNs within the assigned Thousands-Block.