NANPA Planning Letter (PL) Number 416 - Assignment of NPA 544 for Personal Communications Services (PCS)

The 5YY NPA resource is "a non-geographic Service Access Code (SAC) used for personal communications services. In compliance with PCS guidelines governing 5YY NXX Code Assignment, prior Planning Letters (406 and 411) announced the exhaust of the 500 and 533 NPAs being utilized as the PCS NPAs, as well as, the designation of 544 as the next NPA for 5YY assignment. The recently released 416 PL announced the 12/15/10 initiation of NXX code assignments in the 544 NPA.