Abstract: A protective container for aerially disposed splice packages of transmission cables comprising an elongate, cylindrical pipe formed of high-strength, projectile-resistant material for containing a transmission cable splice package therein, brackets for attaching the cylindrical pipe to the side of a transmission cable support pole with its longitudinal axis generally vertically disposed, a first generally circular, projectile-resistant top plate fixed to the top of the pipe in close vertically spaced relation to overlie the top opening and provide a peripheral opening at the top of the pipe for passage of air, a second generally circular, projectile-resistant bottom plate removably secured to the bottom of the pipe to close the bottom opening thereof and provide a radially disposed slot therein for passage of a transmission cable into and out of the pipe, and a transverse bolt spanning the diameter of the pipe above the bottom plate to supportably retain a transmission cable splice package within the containe