Amendment of the Geographic Channel Block Layout for Commercial Aviation Air-Ground Systems in the Air-Ground Radiotelephone Service

This document amends the geographical channel block layout for commercial aviation air-ground systems licensed in the Air-Ground Radiotelephone Service. These systems provide telephone service over a wireless air-ground link to the telephones that are installed in commercial airliners for use by passengers during flights. The purpose of this action is to update the geographic channel block layout set forth in the Commission's rules such that it correctly lists the reference locations and channel block allotments for currently operating ground stations in this service.