This document specifies guidelines for the assignment of NXX codes within a 5YY NXX non-geographic Service Access Code (SAC) used for personal communications services.
ATIS 0300052(2018-10)
Original price was: $35.00.$17.00Current price is: $17.00.
Non-Geographic 5XX-NXX Code Assignment Guidelines
The Alliance for Telecommunications Industry Solutions , 10/26/2018
